Communication Systems

Save this PDF as:
 WORD  PNG  TXT  JPG

Size: px
Start display at page:

Download "Communication Systems"

Transcription

1 AM/FM Receiver

2 Communication Systems We have studied the basic blocks o any communication system Modulator Demodulator Modulation Schemes: Linear Modulation (DSB, AM, SSB, VSB) Angle Modulation (FM, PM)

3 AM/FM Radio System Principles: Frequency Spectrum Sharing (many transmitters using one medium) Demodulating desired signal and rejecting other signals transmitted at the same time

4 AM/FM Radio System The source signal is audio Dierent sources have dierent spectrum Voice (speech) Music Hybrid signals (music, voice, singing)

5 AM/FM Radio System Dierent audio sources have dierent bandwidth W Speech- 4kHz High quality music- 15kHz AM radio limits baseband bandwidth W to 5kHz FM radio uses baseband bandwidth W to 15kHz

6 AM/FM Radio System Radio system should be able to receive any type o audio source simultaneously. Dierent stations with dierent sources transmit signals simultaneously. Dierent listeners tune to dierent stations simultaneously.

7 AM/FM Radio System The dierent radio stations share the requency spectrum over the air through AM and FM modulation. Each radio station, within a certain geographical region, is designated a carrier requency around which it has to transmit Sharing the AM/FM radio spectrum is achieved through Frequency Division Multiplexing (FDM)

8 Example o AM Radio Spectrum Dierent radio stations, dierent source signals Fc0 Fc1 Fc2 F Carrier spacing- 10kHz (AM) Bandwidth (3-5kHz)

9 AM/FM Radio System For AM radio, each station occupies a maximum bandwidth o 10 khz Carrier spacing is 10 khz For FM radio, each station occupies a bandwidth o 200 khz, and thereore the carrier spacing is 200 khz

10 AM/FM Radio System Transmission Bandwidth: B T B T is the bandwidth occupied by a message signal in the radio requency spectrum B T is also the carrier spacing AM: BT = 2W FM: BT = 2 ( D + 1) W (Carson s Rule)

11 Design o AM/FM radio receiver The radio receiver has to be cost eective Requirements: Has to work with both AM and FM signals Tune to and ampliy desired radio station Filter out all other stations Demodulator has to work with all radio stations regardless o carrier requency

12 For the demodulator to work with any radio signal, we convert the carrier requency o any radio signal to Intermediate Frequency (IF) Radio receiver design can be optimized or that requency IF ilter and a demodulator or IF requency

13 AM/FM Radio Spectrum Recall that AM and FM have dierent radio requency (RF) spectrum ranges: AM: 540 khz 1600 khz FM: 88 MHz 108 MHz Thereore, two IF requencies AM: 455 khz FM: 10.7 MHz

14 A radio receiver consists o the ollowing: A Radio Frequency (RF) section An RF-to-IF converter (mixer) An Intermediate Frequency (IF) section Demodulator Audio ampliier R F Tuner IF Filter Demodulator Audio Ampliier

15 This is known as the Superheterodyne receiver Two stages: RF and IF (iltering and ampliication) The receiver was designed by Armstrong

16 RF Section Tunes to the desired RF requency, c Includes RF bandpass ilter centered around The bandwidth BRF Usually not narrowband, passes the desired radio station and adjacent stations c

17 The minimum bandwidth o RF ilter: B RF > BT Passes the desired radio channel, and adjacent channels

18 RF-IF converter: Converts carrier requency IF requency How can we convert signals with dierent RF requencies to the same IF requency?

19 Local oscillator with a center requency LO is a unction o RF carrier requency LO LO = c + IF R F Tuner IF Filter Demodulator Audio Ampliier

20 RF-to-IF receiver includes: An oscillator with a variable requency LO (varies with RF carrier requency) By tuning to the channel, you are tuning the local oscillator and RF tunable ilter at the same time.

21 All stations are translated to a ixed carrier requency or adequate selectivity. Fc X FIF FLO

22 Two requencies are generated at the output o product modulator: LO+ c = 2c + LO c = The higher requency component is eliminated through iltering We are let with IF requency IF IF

23 One problem with this receiver: Image Signal Image signal has a center requency: i = c + 2 IF

24 I an image signal exists at the input o the RF-to-IF converter, then the output o the converter will include the desired signal + image signal Fc X FIF FLO LO + i = ( c + IF ) + ( c + 2 IF ) = 2 c + 3 IF LO i = ( c + IF ) ( c + 2 IF ) = IF

25 Example: Incoming carrier requency 1000 khz, Local oscillator = =1455 khz Consider another carrier at 1910 khz I this is passed through the same oscillator, will have a =455 khz component Thereore, both carriers will be passed through RF-to-IF converter

26 Thereore, RF ilter should be designed to eliminate image signals The requency dierence between a carrier and its image signal is: 2 IF RF ilter doesn t have to be selective or adjacent stations, have to be selective or image signals Thereore, BT < BRF < 2 IF

27 IF ilter: Center requency IF Bandwidth approximately same as transmission bandwidth, B T For AM: BT = 2W For FM: BT =2 ( D+ 1) W

28 Depending on the type o the received signal, the output o IF ilter is demodulated using AM or FM demodulators. For AM: envelope detector For FM: requency discriminator

The Phase Modulator In NBFM Voice Communication Systems

The Phase Modulator In NBFM Voice Communication Systems The Phase Modulator In NBFM Voice Communication Systems Virgil Leenerts 8 March 5 The phase modulator has been a point of discussion as to why it is used and not a frequency modulator in what are called

More information

Introduction to Receivers

Introduction to Receivers Introduction to Receivers Purpose: translate RF signals to baseband Shift frequency Amplify Filter Demodulate Why is this a challenge? Interference (selectivity, images and distortion) Large dynamic range

More information

INTRODUCTION TO COMMUNICATION SYSTEMS AND TRANSMISSION MEDIA

INTRODUCTION TO COMMUNICATION SYSTEMS AND TRANSMISSION MEDIA COMM.ENG INTRODUCTION TO COMMUNICATION SYSTEMS AND TRANSMISSION MEDIA 9/6/2014 LECTURES 1 Objectives To give a background on Communication system components and channels (media) A distinction between analogue

More information

TUTORIAL FOR CHAPTER 8

TUTORIAL FOR CHAPTER 8 TUTORIAL FOR CHAPTER 8 PROBLEM 1) The informaiton in four analog signals is to be multiplexed and transmitted over a telephone channel that has a 400 to 3100 Hz bandpass. Each of the analog baseband signals

More information

ELEMENTS OF CABLE TELEVISION

ELEMENTS OF CABLE TELEVISION 1 ELEMENTS OF CABLE TELEVISION Introduction Cable television, from its inception, developed in western countries into two separate systems called Master Antenna Television (MATV) and Community Cable Television

More information

Software Defined Radio

Software Defined Radio Software Defined Radio GNU Radio and the USRP Overview What is Software Defined Radio? Advantages of Software Defined Radio Traditional versus SDR Receivers SDR and the USRP Using GNU Radio Introduction

More information

MAINTENANCE & ADJUSTMENT

MAINTENANCE & ADJUSTMENT MAINTENANCE & ADJUSTMENT Circuit Theory The concept of PLL system frequency synthesization is not of recent development, however, it has not been a long age since the digital theory has been couplet with

More information

Multiplexing on Wireline Telephone Systems

Multiplexing on Wireline Telephone Systems Multiplexing on Wireline Telephone Systems Isha Batra, Divya Raheja Information Technology, Dronacharya College of Engineering Farrukh Nagar, Gurgaon, India ABSTRACT- This Paper Outlines a research multiplexing

More information

DT3: RF On/Off Remote Control Technology. Rodney Singleton Joe Larsen Luis Garcia Rafael Ocampo Mike Moulton Eric Hatch

DT3: RF On/Off Remote Control Technology. Rodney Singleton Joe Larsen Luis Garcia Rafael Ocampo Mike Moulton Eric Hatch DT3: RF On/Off Remote Control Technology Rodney Singleton Joe Larsen Luis Garcia Rafael Ocampo Mike Moulton Eric Hatch Agenda Radio Frequency Overview Frequency Selection Signals Methods Modulation Methods

More information

Understanding the Effect of Uncorrelated Phase Noise on Multi-channel RF Vector Signal Generators and Analysers

Understanding the Effect of Uncorrelated Phase Noise on Multi-channel RF Vector Signal Generators and Analysers Understanding the Effect of Uncorrelated Phase Noise on Multi-channel RF Vector Signal Generators and Analysers David A. Hall, Product Marketing Manager Andy Hinde, RF Systems Engineer Introduction With

More information

Objectives. Lecture 4. How do computers communicate? How do computers communicate? Local asynchronous communication. How do computers communicate?

Objectives. Lecture 4. How do computers communicate? How do computers communicate? Local asynchronous communication. How do computers communicate? Lecture 4 Continuation of transmission basics Chapter 3, pages 75-96 Dave Novak School of Business University of Vermont Objectives Line coding Modulation AM, FM, Phase Shift Multiplexing FDM, TDM, WDM

More information

Revision of Lecture Eighteen

Revision of Lecture Eighteen Revision of Lecture Eighteen Previous lecture has discussed equalisation using Viterbi algorithm: Note similarity with channel decoding using maximum likelihood sequence estimation principle It also discusses

More information

RF Network Analyzer Basics

RF Network Analyzer Basics RF Network Analyzer Basics A tutorial, information and overview about the basics of the RF Network Analyzer. What is a Network Analyzer and how to use them, to include the Scalar Network Analyzer (SNA),

More information

Appendix C GSM System and Modulation Description

Appendix C GSM System and Modulation Description C1 Appendix C GSM System and Modulation Description C1. Parameters included in the modelling In the modelling the number of mobiles and their positioning with respect to the wired device needs to be taken

More information

Welcome to the United States Patent and TradeMark Office

Welcome to the United States Patent and TradeMark Office Welcome to the United States Patent and TradeMark Office an Agency of the United States Department of Commerce United States Patent 5,159,703 Lowery October 27, 1992 Silent subliminal presentation system

More information

RF SYSTEM DESIGN OF TRANSCEIVERS FOR WIRELESS COMMUNICATIONS

RF SYSTEM DESIGN OF TRANSCEIVERS FOR WIRELESS COMMUNICATIONS RF SYSTEM DESIGN OF TRANSCEIVERS FOR WIRELESS COMMUNICATIONS Qizheng Gu Nokia Mobile Phones, Inc. 4y Springer Contents Preface xiii Chapter 1. Introduction 1 1.1. Wireless Systems 1 1.1.1. Mobile Communications

More information

1 Multi-channel frequency division multiplex frequency modulation (FDM-FM) emissions

1 Multi-channel frequency division multiplex frequency modulation (FDM-FM) emissions Rec. ITU-R SM.853-1 1 RECOMMENDATION ITU-R SM.853-1 NECESSARY BANDWIDTH (Question ITU-R 77/1) Rec. ITU-R SM.853-1 (1992-1997) The ITU Radiocommunication Assembly, considering a) that the concept of necessary

More information

Chap#5 (Data communication)

Chap#5 (Data communication) Chap#5 (Data communication) Q#1: Define analog transmission. Normally, analog transmission refers to the transmission of analog signals using a band-pass channel. Baseband digital or analog signals are

More information

Lecture 1: Communication Circuits

Lecture 1: Communication Circuits EECS 142 Lecture 1: Communication Circuits Prof. Ali M. Niknejad University of California, Berkeley Copyright c 2005 by Ali M. Niknejad A. M. Niknejad University of California, Berkeley EECS 142 Lecture

More information

Frequency Range Extension of Spectrum Analyzers with Harmonic Mixers

Frequency Range Extension of Spectrum Analyzers with Harmonic Mixers Products FSEM21/31 and FSEK21/31 or FSEM20/30 and FSEK20/30 with FSE-B21 Frequency Range Extension o Spectrum Analyzers with Harmonic Mixers This application note describes the principle o harmonic mixing

More information

&"#' ( "#' )*! #+ #,# 1" 1! 2"# ' 6! #* #!"#" +" )$# # # "#$#$ '2 2 ## #1##9 # # ##2 #( # 8##! #9# 9@8!( " " "32#$#$2#9 # "#!#1#$#$#9 '29# # #9$

&#' ( #' )*! #+ #,# 1 1! 2# ' 6! #* #!# + )$# # # #$#$ '2 2 ## #1##9 # # ##2 #( # 8##! #9# 9@8!(   32#$#$2#9 # #!#1#$#$#9 '29# # #9$ !"## $#!%!"# &"#' ( "#' )*! #+ #,# "##!$ -+./0 1" 1! 2"# # -&1!"#" (2345-&1 #$6.7 -&89$## ' 6! #* #!"#" +" 1##6$ "#+# #-& :1# # $ #$#;1)+#1#+

More information

Multiple Access Techniques

Multiple Access Techniques Multiple Access Techniques Dr. Francis LAU Dr. Francis CM Lau, Associate Professor, EIE, PolyU Content Introduction Frequency Division Multiple Access Time Division Multiple Access Code Division Multiple

More information

Maximizing Receiver Dynamic Range for Spectrum Monitoring

Maximizing Receiver Dynamic Range for Spectrum Monitoring Home Maximizing Receiver Dynamic Range for Spectrum Monitoring Brian Avenell, National Instruments Corp., Austin, TX October 15, 2012 As consumers continue to demand more data wirelessly through mobile

More information

Sampling Theorem Notes. Recall: That a time sampled signal is like taking a snap shot or picture of signal periodically.

Sampling Theorem Notes. Recall: That a time sampled signal is like taking a snap shot or picture of signal periodically. Sampling Theorem We will show that a band limited signal can be reconstructed exactly from its discrete time samples. Recall: That a time sampled signal is like taking a snap shot or picture of signal

More information

Implementation of Digital Signal Processing: Some Background on GFSK Modulation

Implementation of Digital Signal Processing: Some Background on GFSK Modulation Implementation of Digital Signal Processing: Some Background on GFSK Modulation Sabih H. Gerez University of Twente, Department of Electrical Engineering s.h.gerez@utwente.nl Version 4 (February 7, 2013)

More information

Jeff Thomas Tom Holmes Terri Hightower. Learn RF Spectrum Analysis Basics

Jeff Thomas Tom Holmes Terri Hightower. Learn RF Spectrum Analysis Basics Jeff Thomas Tom Holmes Terri Hightower Learn RF Spectrum Analysis Basics Agenda Overview: Spectrum analysis and its measurements Theory of Operation: Spectrum analyzer hardware Frequency Specifications

More information

CDMA TECHNOLOGY. Brief Working of CDMA

CDMA TECHNOLOGY. Brief Working of CDMA CDMA TECHNOLOGY History of CDMA The Cellular Challenge The world's first cellular networks were introduced in the early 1980s, using analog radio transmission technologies such as AMPS (Advanced Mobile

More information

Teleprotection Schemes and Equipment. James W. Ebrecht Young Power Equipment Scottsdale, AZ

Teleprotection Schemes and Equipment. James W. Ebrecht Young Power Equipment Scottsdale, AZ * Teleprotection Schemes and Equipment James W. Ebrecht Young Power Equipment Scottsdale, AZ Teleprotection Schemes And Equipment ~ ~ Relay Relay Teleprotection Communications channel Teleprotection Protection

More information

Agilent E3830 Series Wide-bandwidth Signal Analyzer Custom Systems 100 MHz Bandwidth Microwave Vector Signal Analysis

Agilent E3830 Series Wide-bandwidth Signal Analyzer Custom Systems 100 MHz Bandwidth Microwave Vector Signal Analysis Agilent E3830 Series Wide-bandwidth Signal Analyzer Custom Systems 100 MHz Bandwidth Microwave Vector Signal Analysis The measurement challenge 2 Many advanced microwave applications involve complex wideband

More information

What s The Difference Between Bit Rate And Baud Rate?

What s The Difference Between Bit Rate And Baud Rate? What s The Difference Between Bit Rate And Baud Rate? Apr. 27, 2012 Lou Frenzel Electronic Design Serial-data speed is usually stated in terms of bit rate. However, another oftquoted measure of speed is

More information

MSB MODULATION DOUBLES CABLE TV CAPACITY Harold R. Walker and Bohdan Stryzak Pegasus Data Systems ( 5/12/06) pegasusdat@aol.com

MSB MODULATION DOUBLES CABLE TV CAPACITY Harold R. Walker and Bohdan Stryzak Pegasus Data Systems ( 5/12/06) pegasusdat@aol.com MSB MODULATION DOUBLES CABLE TV CAPACITY Harold R. Walker and Bohdan Stryzak Pegasus Data Systems ( 5/12/06) pegasusdat@aol.com Abstract: Ultra Narrow Band Modulation ( Minimum Sideband Modulation ) makes

More information

SLAC-LBL VIDEO/AUDIO LINE

SLAC-LBL VIDEO/AUDIO LINE SLAC-TN-754 W. C. Struven SLAC-LBL VIDEO/AUDIO LINE The joint PEP proposal submitted to ERDA (AEC) by SLAC and LBL has required a great deal of discussion between groups at SLAC and LBL. As detail design

More information

Spectrum Analyzer Basics www. agilent.com/find/backtobasics

Spectrum Analyzer Basics www. agilent.com/find/backtobasics www. agilent.com/find/backtobasics Abstract Learn why spectrum analysis is important for a variety of applications and how to measure system and device performance using a spectrum analyzer. To introduce

More information

Chapter 6 Bandwidth Utilization: Multiplexing and Spreading 6.1

Chapter 6 Bandwidth Utilization: Multiplexing and Spreading 6.1 Chapter 6 Bandwidth Utilization: Multiplexing and Spreading 6.1 Copyright The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Note Bandwidth utilization is the wise use of

More information

Overview ISDB-T for sound broadcasting Terrestrial Digital Radio in Japan. Shunji NAKAHARA. NHK (Japan Broadcasting Corporation)

Overview ISDB-T for sound broadcasting Terrestrial Digital Radio in Japan. Shunji NAKAHARA. NHK (Japan Broadcasting Corporation) Overview ISDB-T for sound broadcasting Terrestrial Digital Radio in Japan Shunji NAKAHARA NHK (Japan Broadcasting Corporation) 2003/11/04 1 Contents Features of ISDB-T SB system Current status of digital

More information

RF Measurements Using a Modular Digitizer

RF Measurements Using a Modular Digitizer RF Measurements Using a Modular Digitizer Modern modular digitizers, like the Spectrum M4i series PCIe digitizers, offer greater bandwidth and higher resolution at any given bandwidth than ever before.

More information

CS263: Wireless Communications and Sensor Networks

CS263: Wireless Communications and Sensor Networks CS263: Wireless Communications and Sensor Networks Matt Welsh Lecture 4: Medium Access Control October 5, 2004 2004 Matt Welsh Harvard University 1 Today's Lecture Medium Access Control Schemes: FDMA TDMA

More information

Four Wave Mixing in Closely Spaced DWDM Optical Channels

Four Wave Mixing in Closely Spaced DWDM Optical Channels 544 VOL. 1, NO. 2, AUGUST 2006 Four Wave Mixing in Closely Spaced DWDM Optical Channels Moncef Tayahi *, Sivakumar Lanka, and Banmali Rawat Advanced Photonics Research lab, Department of Electrical Engineering

More information

CHAPTER 8 MULTIPLEXING

CHAPTER 8 MULTIPLEXING CHAPTER MULTIPLEXING 3 ANSWERS TO QUESTIONS.1 Multiplexing is cost-effective because the higher the data rate, the more cost-effective the transmission facility.. Interference is avoided under frequency

More information

RECOMMENDATION ITU-R BS.704 *, ** Characteristics of FM sound broadcasting reference receivers for planning purposes

RECOMMENDATION ITU-R BS.704 *, ** Characteristics of FM sound broadcasting reference receivers for planning purposes Rec. ITU-R BS.704 1 RECOMMENDATION ITU-R BS.704 *, ** Characteristics of FM sound broadcasting reference receivers for planning purposes (1990) The ITU Radiocommunication Assembly, considering a) that

More information

Interpreting the Information Element C/I

Interpreting the Information Element C/I Prepared Date Rev Document no pproved File/reference 1(17) 2000-04-11 Interpreting the Information Element C/I This document primarily addresses users of TEMS Investigation. 2(17) 1 Introduction Why is

More information

APPLICATION NOTE. RF System Architecture Considerations ATAN0014. Description

APPLICATION NOTE. RF System Architecture Considerations ATAN0014. Description APPLICATION NOTE RF System Architecture Considerations ATAN0014 Description Highly integrated and advanced radio designs available today, such as the Atmel ATA5830 transceiver and Atmel ATA5780 receiver,

More information

RECOMMENDATION ITU-R M.1453-1 * Transport information and control systems Dedicated short range communications at 5.8 GHz

RECOMMENDATION ITU-R M.1453-1 * Transport information and control systems Dedicated short range communications at 5.8 GHz Rec. ITU-R M.1453-1 1 RECOMMENDATION ITU-R M.1453-1 * Transport and control systems Dedicated short range communications at 5.8 GHz (Question ITU-R 205/8) (2000-2002) The ITU Radiocommunication Assembly,

More information

HP 8970B Option 020. Service Manual Supplement

HP 8970B Option 020. Service Manual Supplement HP 8970B Option 020 Service Manual Supplement Service Manual Supplement HP 8970B Option 020 HP Part no. 08970-90115 Edition 1 May 1998 UNIX is a registered trademark of AT&T in the USA and other countries.

More information

Multiple Access Techniques PROF. MICHAEL TSAI 2011/12/8

Multiple Access Techniques PROF. MICHAEL TSAI 2011/12/8 Multiple Access Techniques PROF. MICHAEL TSAI 2011/12/8 Multiple Access Scheme Allow many users to share simultaneously a finite amount of radio spectrum Need to be done without severe degradation of the

More information

Wireless Communication and RF System Design Using MATLAB and Simulink Giorgia Zucchelli Technical Marketing RF & Mixed-Signal

Wireless Communication and RF System Design Using MATLAB and Simulink Giorgia Zucchelli Technical Marketing RF & Mixed-Signal Wireless Communication and RF System Design Using MATLAB and Simulink Giorgia Zucchelli Technical Marketing RF & Mixed-Signal 2013 The MathWorks, Inc. 1 Outline of Today s Presentation Introduction to

More information

Example/ an analog signal f ( t) ) is sample by f s = 5000 Hz draw the sampling signal spectrum. Calculate min. sampling frequency.

Example/ an analog signal f ( t) ) is sample by f s = 5000 Hz draw the sampling signal spectrum. Calculate min. sampling frequency. 1 2 3 4 Example/ an analog signal f ( t) = 1+ cos(4000πt ) is sample by f s = 5000 Hz draw the sampling signal spectrum. Calculate min. sampling frequency. Sol/ H(f) -7KHz -5KHz -3KHz -2KHz 0 2KHz 3KHz

More information

System Design in Wireless Communication. Ali Khawaja

System Design in Wireless Communication. Ali Khawaja System Design in Wireless Communication Ali Khawaja University of Texas at Dallas December 6, 1999 1 Abstract This paper deals with the micro and macro aspects of a wireless system design. With the growing

More information

Dimensioning, configuration and deployment of Radio Access Networks. Lecture 2.1: Voice in GSM

Dimensioning, configuration and deployment of Radio Access Networks. Lecture 2.1: Voice in GSM Dimensioning, configuration and deployment of Radio Access Networks. Lecture.: Voice in GSM GSM Specified by ETSI Frequency Division Duplex TDMA system Originally at 900MHz, but today also at 800, 800,

More information

MODULATION Systems (part 1)

MODULATION Systems (part 1) Technologies and Services on Digital Broadcasting (8) MODULATION Systems (part ) "Technologies and Services of Digital Broadcasting" (in Japanese, ISBN4-339-62-2) is published by CORONA publishing co.,

More information

Angle Modulation, II. Lecture topics FM bandwidth and Carson s rule. Spectral analysis of FM. Narrowband FM Modulation. Wideband FM Modulation

Angle Modulation, II. Lecture topics FM bandwidth and Carson s rule. Spectral analysis of FM. Narrowband FM Modulation. Wideband FM Modulation Angle Modulation, II EE 179, Lecture 12, Handout #19 Lecture topics FM bandwidth and Carson s rule Spectral analysis of FM Narrowband FM Modulation Wideband FM Modulation EE 179, April 25, 2014 Lecture

More information

GSM/EDGE Output RF Spectrum on the V93000 Joe Kelly and Max Seminario, Verigy

GSM/EDGE Output RF Spectrum on the V93000 Joe Kelly and Max Seminario, Verigy GSM/EDGE Output RF Spectrum on the V93000 Joe Kelly and Max Seminario, Verigy Introduction A key transmitter measurement for GSM and EDGE is the Output RF Spectrum, or ORFS. The basis of this measurement

More information

CHAPTER 1 1 INTRODUCTION

CHAPTER 1 1 INTRODUCTION CHAPTER 1 1 INTRODUCTION 1.1 Wireless Networks Background 1.1.1 Evolution of Wireless Networks Figure 1.1 shows a general view of the evolution of wireless networks. It is well known that the first successful

More information

A survey on Spectrum Management in Cognitive Radio Networks

A survey on Spectrum Management in Cognitive Radio Networks A survey on Spectrum Management in Cognitive Radio Networks Ian F. Akyildiz, Won-Yeol Lee, Mehmet C. Vuran, Shantidev Mohanty Georgia Institute of Technology Communications Magazine, vol 46, April 2008,

More information

STANDARDS TO ACCESS AND OPERATE SATELLITE SERVICES

STANDARDS TO ACCESS AND OPERATE SATELLITE SERVICES STANDARDS TO ACCESS AND OPERATE SATELLITE SERVICES INDEX I. Scope... 3 II. Bandwidth and Power Standards... 3 A. Bandwidth (BW) Allocation and Measurement... 3 1. Bandwidth of a digital carrier per customer....

More information

Spectrum Analyzers vs. Monitoring Receivers. Paul Denisowski, Application Engineer Rohde & Schwarz

Spectrum Analyzers vs. Monitoring Receivers. Paul Denisowski, Application Engineer Rohde & Schwarz Spectrum Analyzers vs. Monitoring Receivers Paul Denisowski, Application Engineer Rohde & Schwarz Spectrum Management Requirements What signals are present at which frequencies? Additional responsibilities

More information

Measurement of Adjacent Channel Leakage Power on 3GPP W-CDMA Signals with the FSP

Measurement of Adjacent Channel Leakage Power on 3GPP W-CDMA Signals with the FSP Products: Spectrum Analyzer FSP Measurement of Adjacent Channel Leakage Power on 3GPP W-CDMA Signals with the FSP This application note explains the concept of Adjacent Channel Leakage Ratio (ACLR) measurement

More information

Trends in Broadcast Radio

Trends in Broadcast Radio Broadcast Radio Trends in Broadcast Radio Move to Digital Standards High definition radio Satellite Multiple RF Applications Radio: AM/FM + DAB, XM, Sirius, IBOC Positioning: GPS, Galileo Requirement for

More information

AM/FM/ϕM Measurement Demodulator FS-K7

AM/FM/ϕM Measurement Demodulator FS-K7 Data sheet Version 02.00 AM/FM/ϕM Measurement Demodulator FS-K7 July 2005 for the Analyzers FSQ/FSU/FSP and the Test Receivers ESCI/ESPI AM/FM/ϕM demodulator for measuring analog modulation parameters

More information

Department of Electrical and Computer Engineering Ben-Gurion University of the Negev. LAB 1 - Introduction to USRP

Department of Electrical and Computer Engineering Ben-Gurion University of the Negev. LAB 1 - Introduction to USRP Department of Electrical and Computer Engineering Ben-Gurion University of the Negev LAB 1 - Introduction to USRP - 1-1 Introduction In this lab you will use software reconfigurable RF hardware from National

More information

DESIGN OF RF/IF ANALOG TO DIGITAL CONVERTERS FOR SOFTWARE RADIO COMMUNICATION RECEIVERS

DESIGN OF RF/IF ANALOG TO DIGITAL CONVERTERS FOR SOFTWARE RADIO COMMUNICATION RECEIVERS DESIGN OF RF/IF ANALOG TO DIGITAL CONVERTERS FOR SOFTWARE RADIO COMMUNICATION RECEIVERS A Dissertation by BHARATH KUMAR THANDRI Submitted to the Office of Graduate Studies of Texas A&M University in partial

More information

Phase Noise Measurement Methods and Techniques

Phase Noise Measurement Methods and Techniques Phase Noise Measurement Methods and Techniques Presented by: Kay Gheen, Agilent Technologies Introduction Extracting electronic signals from noise is a challenge for most electronics engineers. As engineers

More information

Implementing Digital Wireless Systems. And an FCC update

Implementing Digital Wireless Systems. And an FCC update Implementing Digital Wireless Systems And an FCC update Spectrum Repacking Here We Go Again: The FCC is reallocating 600 MHz Frequencies for Wireless Mics 30-45 MHz (8-m HF) 174-250 MHz (VHF) 450-960 MHz

More information

CHEIA Satellite Communication Center

CHEIA Satellite Communication Center Opened in October 1976,, from Prahova region, Romania, is the largest teleport in Central and South-eastern Europe. Located in a unique natural environment in the country due to the mountainous relief

More information

EECC694 - Shaaban. Transmission Channel

EECC694 - Shaaban. Transmission Channel The Physical Layer: Data Transmission Basics Encode data as energy at the data (information) source and transmit the encoded energy using transmitter hardware: Possible Energy Forms: Electrical, light,

More information

UK Radio Licence Interface Requirement 2036 For Mobile Asset Tracking Services

UK Radio Licence Interface Requirement 2036 For Mobile Asset Tracking Services UK Radio Licence Interface Requirement 2036 For Mobile Asset Tracking Services (Version 1.0) 98/34/EC Notification Number: 2000/393/UK Published 15 December 2000 Page 1 File name: ir2036.doc Blank Page

More information

Assessment of LTE 800 MHz Base Station Interference into DTT Receivers

Assessment of LTE 800 MHz Base Station Interference into DTT Receivers Page 1 of 41 Business Unit: RF & EMC Group Report Title: Author(s): Assessment of LTE 800 MHz Base Station Interference into DTT Receivers I Parker, S Munday Client: Ofcom Client Reference: PO 4100017570

More information

ETSI EN 302 774 V1.2.1 (2012-02)

ETSI EN 302 774 V1.2.1 (2012-02) EN 302 774 V1.2.1 (2012-02) Harmonized European Standard Broadband Wireless Access Systems (BWA) in the 3 400 MHz to 3 800 MHz frequency band; Base Stations; Harmonized EN covering the essential requirements

More information

Lecture 1. Introduction to Wireless Communications 1

Lecture 1. Introduction to Wireless Communications 1 896960 Introduction to Algorithmic Wireless Communications Lecture 1. Introduction to Wireless Communications 1 David Amzallag 2 May 25, 2008 Introduction to cellular telephone systems. How a cellular

More information

Spectrum Analysis Basics. Application Note 150

Spectrum Analysis Basics. Application Note 150 Spectrum Analysis Basics Application Note 150 Agilent Technologies dedicates this application note to Blake Peterson. Blake s outstanding service in technical support reached customers in all corners of

More information

8. Communications Subsystem

8. Communications Subsystem PM-1.1-03 Rev C 8. Communications Subsystem The GOES-NOP spacecraft communications subsystem provides requisite conditioning, transmission, reception, and routing of mission data signals and telemetry

More information

LM1596 LM1496 Balanced Modulator-Demodulator

LM1596 LM1496 Balanced Modulator-Demodulator LM1596 LM1496 Balanced Modulator-Demodulator General Description The LM1596 LM1496 are doubled balanced modulator-demodulators which produce an output voltage proportional to the product of an input (signal)

More information

Non-Data Aided Carrier Offset Compensation for SDR Implementation

Non-Data Aided Carrier Offset Compensation for SDR Implementation Non-Data Aided Carrier Offset Compensation for SDR Implementation Anders Riis Jensen 1, Niels Terp Kjeldgaard Jørgensen 1 Kim Laugesen 1, Yannick Le Moullec 1,2 1 Department of Electronic Systems, 2 Center

More information

Module 5. Broadcast Communication Networks. Version 2 CSE IIT, Kharagpur

Module 5. Broadcast Communication Networks. Version 2 CSE IIT, Kharagpur Module 5 Broadcast Communication Networks Lesson 9 Cellular Telephone Networks Specific Instructional Objectives At the end of this lesson, the student will be able to: Explain the operation of Cellular

More information

MoCA 1.1 Specification for Device RF Characteristics

MoCA 1.1 Specification for Device RF Characteristics MoCA 1.1 Specification for Device RF Characteristics 20140211 Copyright 2012, 2014 Multimedia Over Coax Alliance. All Rights Reserved. MoCA is a trademark or registered trademark of the Multimedia Over

More information

About Me" List of Lectures" In This Course" Mobile and Sensor Systems. Lecture 1: Introduction to Wireless Systems" " Dr. Cecilia Mascolo" "

About Me List of Lectures In This Course Mobile and Sensor Systems. Lecture 1: Introduction to Wireless Systems  Dr. Cecilia Mascolo About Me Reader in Mobile Systems NetOS Research Group Research on Mobile, Social and Sensor Systems More specifically, Human Mobility and Social Network modelling Opportunistic Mobile Networks Mobile

More information

LTE System Specifications and their Impact on RF & Base Band Circuits. Application Note. Products: R&S FSW R&S SMU R&S SFU R&S FSV R&S SMJ R&S FSUP

LTE System Specifications and their Impact on RF & Base Band Circuits. Application Note. Products: R&S FSW R&S SMU R&S SFU R&S FSV R&S SMJ R&S FSUP Application Note Dr. Oliver Werther/Roland Minihold 04.2013 1MA221_1E LTE System Specifications and their Impact on RF & Base Band Circuits Application Note Products: R&S FSW R&S SMU R&S SFU R&S FSV R&S

More information

Multiple Access Techniques

Multiple Access Techniques Chapter 8 Multiple Access Techniques Multiple access techniques are used to allow a large number of mobile users to share the allocated spectrum in the most efficient manner. As the spectrum is limited,

More information

Whitepaper 4 Level FSK/FDMA 6.25 khz Technology

Whitepaper 4 Level FSK/FDMA 6.25 khz Technology Whitepaper 4 Level FSK/FDMA 6.25 khz Technology DISCLAIMER This document has been prepared by the dpmr MoU Association as a reference document about dpmr. The information in this document has been carefully

More information

Achieving New Levels of Channel Density in Downstream Cable Transmitter Systems: RF DACs Deliver Smaller Size and Lower Power Consumption

Achieving New Levels of Channel Density in Downstream Cable Transmitter Systems: RF DACs Deliver Smaller Size and Lower Power Consumption Achieving New Levels of Channel Density in Downstream Cable Transmitter Systems: RF DACs Deliver Smaller Size and Lower Power Consumption Introduction By: Analog Devices, Inc. (ADI) Daniel E. Fague, Applications

More information

Lezione 6 Communications Blockset

Lezione 6 Communications Blockset Corso di Tecniche CAD per le Telecomunicazioni A.A. 2007-2008 Lezione 6 Communications Blockset Ing. Marco GALEAZZI 1 What Is Communications Blockset? Communications Blockset extends Simulink with a comprehensive

More information

GSM and Similar Architectures Lesson 07 GSM Radio Interface, Data bursts and Interleaving

GSM and Similar Architectures Lesson 07 GSM Radio Interface, Data bursts and Interleaving GSM and Similar Architectures Lesson 07 GSM Radio Interface, Data bursts and Interleaving 1 Space Division Multiple Access of the signals from the MSs A BTS with n directed antennae covers mobile stations

More information

Full-Band Capture Cable Digital Tuning

Full-Band Capture Cable Digital Tuning White Paper Full-Band Capture Cable Digital Tuning Cable operators are demanding devices that support an increasing number of simultaneous channels, which translates to multiple cable tuners and demodulators

More information

@'pproved for release by NSA on 12-01-2011, Transparency Case# 6385~SSIFIED. Receiver Dynamics

@'pproved for release by NSA on 12-01-2011, Transparency Case# 6385~SSIFIED. Receiver Dynamics @'pproved for release by NSA on 12-01-2011, Transparency Case# 6385~SSIFIED Receiver Dynamics STATUTORILY EXEMPT Editor's Note: This paper was written before the author retired (1995), In K4 we use a number

More information

MEASUREMENT UNCERTAINTY IN VECTOR NETWORK ANALYZER

MEASUREMENT UNCERTAINTY IN VECTOR NETWORK ANALYZER MEASUREMENT UNCERTAINTY IN VECTOR NETWORK ANALYZER W. Li, J. Vandewege Department of Information Technology (INTEC) University of Gent, St.Pietersnieuwstaat 41, B-9000, Gent, Belgium Abstract: Precision

More information

COMMUNICATIONS TEST & MEASUREMENT SOLUTIONS. JD746A RF Analyzer

COMMUNICATIONS TEST & MEASUREMENT SOLUTIONS. JD746A RF Analyzer COMMUNICATIONS TEST & MEASUREMENT SOLUTIONS JD746A RF Analyzer Introduction The RF Analyzer JD746A is an ideal tool for installation and maintenance of cellular base stations. The JD746A combines the functionality

More information

Handheld Spectrum Analyzer

Handheld Spectrum Analyzer 9101 Handheld Spectrum Analyzer The 9101 Handheld Spectrum Analyzer provides RF engineers with the excellent performance of a workbench analyzer in a handheld form, at a competitive price. Highlights Covering

More information

Kenwood introduces. new HF/50MHz All-Mode Transceiver

Kenwood introduces. new HF/50MHz All-Mode Transceiver New Product Release Information Oct 2014 TS-590SG HF/ 50MHz All-Mode TRANSCEIVER_ Kenwood introduces Updated to new G version new HF/50MHz All-Mode Transceiver Four years ago we launched our best-selling

More information

Technician Licensing Class. Lesson 1. presented by the Arlington Radio Public Service Club Arlington County, Virginia

Technician Licensing Class. Lesson 1. presented by the Arlington Radio Public Service Club Arlington County, Virginia Technician Licensing Class Lesson 1 presented by the Arlington Radio Public Service Club Arlington County, Virginia 1 FCC Rules Sub element T1 2 Why Amateur Radio? The basis & purpose of the amateur service

More information

LTE UE RF measurements An introduction and overview

LTE UE RF measurements An introduction and overview An introduction and overview February 2010 Andreas Roessler Andreas.Roessler@rohde-schwarz.com Technology Manager North America Rohde & Schwarz, Germany Guenter Pfeifer Guenter.Pfeifer@rohde-schwarz.com

More information

Spectrum Analyzer for Anritsu RF and Microwave Handheld Instruments

Spectrum Analyzer for Anritsu RF and Microwave Handheld Instruments Measurement Guide Spectrum Analyzer for Anritsu RF and Microwave Handheld Instruments BTS Master, Site Master, Spectrum Master, Cell Master, LMR Master, VNA Master Spectrum Analyzer Included Preamplifier

More information

(Refer Slide Time: 2:10)

(Refer Slide Time: 2:10) Data Communications Prof. A. Pal Department of Computer Science & Engineering Indian Institute of Technology, Kharagpur Lecture-12 Multiplexer Applications-1 Hello and welcome to today s lecture on multiplexer

More information

DSA800 Series Spectrum Analyzer

DSA800 Series Spectrum Analyzer DSA800 Series Spectrum Analyzer Configuration Guide This guide is used to help users to configure DSA800 series spectrum analyzer according to their requirements. You can get an overall understanding of

More information

MATRIX TECHNICAL NOTES

MATRIX TECHNICAL NOTES 200 WOOD AVENUE, MIDDLESEX, NJ 08846 PHONE (732) 469-9510 FAX (732) 469-0418 MATRIX TECHNICAL NOTES MTN-107 TEST SETUP FOR THE MEASUREMENT OF X-MOD, CTB, AND CSO USING A MEAN SQUARE CIRCUIT AS A DETECTOR

More information

:-------------------------------------------------------Instructor---------------------

:-------------------------------------------------------Instructor--------------------- Yarmouk University Hijjawi Faculty for Engineering Technology Computer Engineering Department CPE-462 Digital Data Communications Final Exam: A Date: 20/05/09 Student Name :-------------------------------------------------------Instructor---------------------

More information

MASTR III RF Package, VHF

MASTR III RF Package, VHF Maintenance Manual LBI-38754J MASTR III RF Package, VHF TABLE OF CONTENTS TRANSMIT SYNTHESIZER.......... LBI-38640 RECEIVE SYNTHESIZER........... LBI-38641 RECEIVE RF MODULE............. LBI-38642 IF MODULE...................

More information

Chap 4 Circuit-Switching Networks

Chap 4 Circuit-Switching Networks hap 4 ircuit-switching Networks Provide dedicated circuits between users Example: 1. telephone network: provides 64Kbps circuits for voice signals 64Kbps=8 k samples/sec * 8 bits/sample 2. transport network:

More information

A WEB BASED TRAINING MODULE FOR TEACHING DIGITAL COMMUNICATIONS

A WEB BASED TRAINING MODULE FOR TEACHING DIGITAL COMMUNICATIONS A WEB BASED TRAINING MODULE FOR TEACHING DIGITAL COMMUNICATIONS Ali Kara 1, Cihangir Erdem 1, Mehmet Efe Ozbek 1, Nergiz Cagiltay 2, Elif Aydin 1 (1) Department of Electrical and Electronics Engineering,

More information

Coexistence Tips the Market for Wireless System Simulation Chris Aden, MathWorks

Coexistence Tips the Market for Wireless System Simulation Chris Aden, MathWorks Coexistence Tips the Market for Wireless System Simulation Chris Aden, MathWorks Introduction From time to time, marshalling events occur in stable markets placing difficult new requirements on established

More information