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Communication Systems

Communication Systems


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About the Book

Communication Systems is a textbook designed for a one-semester course on the subject providing an overview of various communication medium, which has its foundation in the principles of analog and digital communication. Starting from the basic principles of analog and digital communication, the book in subsequent chapters talks about various media such as the transmission lines, waveguides, microwave, optical, and satellite communication followed by discussion on data communication and its equipment's. The last chapter is devoted to the understanding of spread spectrum modulation, a recent technique in which information is transmitted through multiple frequencies ensuring greater security. Providing a balance between theory and the applications, the book features review questions, case-studies, appendices on AT commands for modem and standard tables, numerical solved problems, numerical exercises, and MATLAB codes.

Table of Contents:
1.1 WHAT IS COMMUNICATION? 1; 1.2 MODULATION AND ITS TYPES 1; 1.2.1 NEED FOR MODULATION 2; 1.2.2 FREQUENCY TRANSLATION 2; 1.2.3 TYPES OF MODULATION 2; 1.3 TRANSMITTER 3; 1.4 RECEIVER 3; 1.5 DIGITAL COMMUNICATION SYSTEM 4; 1.6 MULTIPLEXING OF SIGNALS 5; 1.6.1 FREQUENCY DIVISION MULTIPLEXING 5; 1.6.2 TIME DIVISION MULTIPLEXING 5; 2.1 BASIC CONCEPTS 6; 2.2 CLASSIFICATION OF SIGNALS 7; 2.2.1 CONTINUOUS AND DISCRETE TIME SIGNALS 7; 2.2.2 PERIODIC AND NON-PERIODIC SIGNALS 8; 2.2.3 CAUSAL AND NON-CAUSAL SIGNALS 8; 2.2.4 EVEN AND ODD SIGNALS 8; 2.2.5 DETERMINISTIC AND RANDOM SIGNALS 9; 2.2.6 REAL AND COMPLEX SIGNALS 10; 2.2.7 ENERGY-TYPE AND POWER-TYPE SIGNALS 10; 2.3 TYPICAL SIGNALS AND THEIR PROPERTIES 11; 2.3.1 SINUSOIDAL SIGNAL 11; 2.3.2 COMPLEX EXPONENTIAL SIGNAL 11; 2.3.3 UNIT-STEP SIGNAL 12; 2.3.4 RECTANGULAR PULSE 12; 2.3.5 TRIANGULAR SIGNAL 13; 2.3.6 THE SINC SIGNAL 13; 2.3.7 SIGN OR SIGNUM SIGNAL 13; 2.3.8 IMPULSE OR DELTA SIGNAL 14; 2.3.9 SINGULAR FUNCTION 16; 2.3.10 SHIFTING, INVERSION, SCALING, AND CONVOLUTION OF SIGNAL 16; 2.4 CLASSIFICATION OF SYSTEMS 17; 2.4.1 DISCRETE TIME AND CONTINUOUS TIME SYSTEMS 18; 2.4.2 LINEAR AND NON-LINEAR SYSTEMS 18; 2.4.3 TIME INVARIANT AND TIME VARYING SYSTEMS 18; 2.4.4 CAUSAL AND NON-CAUSAL SYSTEMS 19; 2.4.5 INSTANTANEOUS AND DYNAMIC SYSTEMS 20; 2.4.6 STABLE AND UNSTABLE SYSTEMS 20; 2.5 DELTA FUNCTION AND CONVOLUTION 20; 2.5.1 DELTA FUNCTION 20; 2.5.2 CONVOLUTION 22; 2.6 FOURIER SERIES AND TRANSFORM 24; 2.6.1 FOURIER SERIES 24; 2.6.2 FOURIER TRANSFORM 29; 2.7 LAPLACE TRANSFORM 32; 2.8 THE Z-TRANSFORM 36; 2.9 SIGNAL ENERGY AND ENERGY SPECTRAL DENSITY 39; 2.10 ENERGY SPECTRAL DENSITY 41; 2.11 ESSENTIAL BANDWIDTH OF A SIGNAL 42; 2.12 ENERGY OF MODULATED SIGNAL 42; 2.13 SIGNAL POWER AND POWER SPECTRAL DENSITY 43; 2.13.1 POWER SPECTRAL DENSITY (PSD) 44; 3.1 BASEBAND COMMUNICATION 58; 3.2 THEORY OF AM 59; 3.3 FREQUENCY SPECTRUM OF SINUSOIDAL AM 60; 3.4 AMPLITUDE MODULATION INDEX 62; 3.5 AVERAGE POWER FOR SINUSOIDAL AM 64; 3.6 MODULATION BY SEVERAL SINE WAVES 66; 3.7 DOUBLE SIDEBAND SUPPRESSED CARRIER (DSBSC) 67; 3.8 SINGLE SIDEBAND (SSB) SYSTEMS 68; 3.8.1 SINGLE SIDEBAND WITH CARRIER 68; 3.8.2 SINGLE SIDEBAND WITH SUPPRESSED CARRIER 71; 3.8.3 SINGLE SIDEBAND WITH REDUCED CARRIER 71; 3.9 INDEPENDENT SIDEBAND AMPLITUDE MODULATION 72; 3.10 COMPARISON OF SSB AND AM 72; 3.11 SINGLE SIDEBAND: ADVANTAGES AND DISADVANTAGES 74; 3.12 SINGLE SIDEBAND GENERATION 75; 3.13 VESTIGIAL SIDEBAND (VSB) TRANSMISSION AND QUADRATURE AMPLITUDE MODULATION (QAM) 76; 3.13.1 VESTIGIAL SIDEBAND TRANSMISSION 76; 3.13.2 QUADRATURE AMPLITUDE MODULATION (QAM) 78; 3.14 AM MODULATORS 78; 3.14.1 SQUARE LAW MODULATION (POWER LAW MODULATION) 79; 3.14.2 SWITCHING MODULATOR 80; 3.14.3 TRANSISTOR MODULATORS 81; 3.14.4 BALANCED MODULATORS 86; 3.15 SSB GENERATION 94; 3.15.1 THE FILTER METHOD 94; 3.15.2 THE PHASE SHIFT METHOD 98; 3.15.3 THE THIRD METHOD 98; 3.16 INDEPENDENT SIDEBAND TRANSMITTER 101; 3.17 AM DEMODULATORS 102; 3.17.1 RECTIFIER DETECTOR 102; 3.17.2 ENVELOPE DETECTOR 103; 3.17.3 DETECTOR DISTORTION 105; 3.17.4 DIAGONAL PEAK CLIPPING 106; 3.17.5 NEGATIVE PEAK CLIPPING 108; 3.18 SSB RECEPTION 109; 3.18.1 COHERENT DETECTION 109; 3.18.2 SSB RECEPTION WITH PILOT CARRIER 109; 3.19 DEMODULATION OF VSB SIGNALS 110; 3.20 DETECTION OF ISB SIGNALS 110; 3.21 TRANSMITTERS 110; 3.21.1 AM TRANSMITTERS 111; 3.21.2 SSB TRANSMITTERS 113; 3.22 TRAPEZOIDAL PATTERNS 113; 3.23 RECEIVERS 115; 3.23.1 AM RECEIVERS 115; 3.23.2 SSB RECEIVER WITH PILOT CARRIER 120; 3.23.3 COMMUNICATION RECEIVERS 120; 3.23.4 RECEIVER PARAMETERS 120; 3.24 AUTOMATIC GAIN AND VOLUME CONTROL CIRCUITS 123; 3.24.1 AUTOMATIC GAIN CONTROL (AGC) 123; 3.24.2 AUTOMATIC VOLUME CONTROL (AVC) 126; 3.24.3 SQUELCH CIRCUIT 127; 3.25 COMPARISON AND APPLICATIONS OF VARIOUS AM SYSTEMS 128; 3.26 FREQUENCY TRANSLATION 129; 3.27 COSTAS LOOP 129; 3.27.1 CARRIER RECOVERY 129; 3.27.2 DIGITAL IMPLEMENTATION 130; 3.27.3 TRADITIONAL DESIGN METHOD 131; 3.27.4 DETAILED DESCRIPTION 132; 3.27.5 COSTAS VERSUS CONVENTIONAL LOOP 134; 3.27.6 DESIGN CONSIDERATIONS FOR COSTAS LOOP 137; 3.27.7 ANALYSIS OF A COSTAS LOOP FOR A TYPICAL RECEIVED SIGNAL 138; 4.1 INTRODUCTION 164; 4.2 INSTANTANEOUS FREQUENCY 165; 4.3 FM AND PM SIGNALS 166; 4.3.1 SPECTRUM OF AN FM SIGNAL 167; 4.3.2 CONCEPT OF ANGLE MODULATION 168; 4.4 MODULATION INDEX 170; 4.4.1 DEVIATION SENSITIVITY 170; 4.4.2 FREQUENCY DEVIATION 172; 4.4.3 PERCENTAGE MODULATION 174; 4.5 BANDWIDTH REQUIREMENTS FOR ANGLE MODULATED WAVES 174; 4.6 SINUSOIDAL FM: NARROWBAND AND WIDEBAND 175; 4.6.1 NARROWBAND FM 175; 4.6.2 WIDEBAND FM 178; 4.7 SPECTRAL CHARACTERISTIC OF A SINUSOIDAL MODULATED FM SIGNAL 181; 4.7.1 SPECTRUM OF CONSTANT BANDWIDTH FM 182; 4.8 AVERAGE POWER IN SINUSOIDAL FM 183; 4.9 DEVIATION RATIO FOR NON-SINUSOIDAL FREQUENCY MODULATION 184; 4.10 PHASE MODULATION 184; 4.10.1 SINUSOIDAL PHASE MODULATION 185; 4.10.2 DIGITAL PHASE MODULATION 186; 4.11 COMPARISON OF FM AND PM 186; 4.12 FM GENERATION 187; 4.12.1 DIRECT METHOD 188; 4.12.2 INDIRECT METHOD 196; 4.13 PHASE MODULATORS 197; 4.13.1 VARACTOR DIODE DIRECT PM MODULATORS 197; 4.13.2 PM MODULATOR: DIRECT METHOD WITH TRANSISTOR 198; 4.14 FM DETECTORS 198; 4.14.1 BANDPASS LIMITER 199; 4.14.2 PRACTICAL FREQUENCY DEMODULATORS 201; 4.14.3 SLOPE DETECTOR 202; 4.14.4 BALANCED SLOPE DETECTOR 203; 4.14.5 FOSTER-SEELEY DISCRIMINATOR 204; 4.14.6 RATIO DETECTOR 206; 4.14.7 FM DEMODULATOR USING A PLL 207; 4.14.8 PRACTICAL PLL CIRCUIT 208; 4.14.9 QUADRATURE DETECTORS 209; 4.14.10 ZERO CROSSING DETECTOR 210; 4.14.11 BIAS DISTORTION IN FM DEMODULATION USING ZERO CROSSING DETECTORS 212; 4.14.12 AMPLITUDE LIMITERS 212; 4.15 FM TRANSMITTERS AND RECEIVERS 214; 4.15.1 DIRECT FM TRANSMITTERS 214; 4.15.2 INDIRECT FM TRANSMITTERS 216; 4.15.3 FM STEREO BROADCASTING 218; 4.15.4 FM IN TV BROADCASTING 219; 4.15.5 FM RECEIVERS 219; 4.15.6 SINGLE-CHIP FM RADIO CIRCUIT 222; 4.15.7 CAPTURE EFFECT 223; 4.16 PHASE LOCKED LOOP (PLL) 224; 4.16.1 PLL BASICS 225; 4.16.2 PLL OPERATION 225; 4.16.3 LOCK AND CAPTURE RANGES 226; 4.16.4 PHASE COMPARATOR 231; 4.16.5 VOLTAGE-CONTROLLED OSCILLATORS (VCOS) 236; 4.16.6 LOOP FILTER 236; 4.16.7 APPLICATIONS OF PLL 237; 4.17 PLL FREQUENCY SYNTHESIZER: A CASE STUDY 245; 4.18 COMPARISON OF ANGLE MODULATION WITH AMPLITUDE MODULATION 249; 5.1 INTRODUCTION 265; 5.2 SAMPLING THEOREM 267; 5.2.1 OCCURRENCE OF ALIASING ERROR 268; 5.3 PULSE AMPLITUDE MODULATION (PAM) 274; 5.3.1 CHANNEL BANDWIDTH FOR PAM 274; 5.3.2 NATURAL SAMPLING 275; 5.3.3 FLAT TOP SAMPLING 277; 5.3.4 PULSE AMPLITUDE MODULATION AND TIME DIVISION MULTIPLEXING (TDM); 5.3.5 SIGNAL RECOVERY 280; 5.4 PULSE WIDTH MODULATION (PWM) 283; 5.4.1 USES OF PWM 283; 5.4.2 WHY THE PWM FREQUENCY IS IMPORTANT 285; 5.5 PULSE POSITION MODULATION (PPM) 285; 5.6 GENERATION OF PAM 285; 5.7 GENERATION OF PWM 286; 5.8 GENERATION OF PPM 286; 5.9 PULSE CODE MODULATION (PCM) 287; 5.9.1 PCM BASICS 288; 5.10 PCM TRANSMITTER AND RECEIVER 289; 5.10.1 QUANTIZATION 289; 5.11 DELTA MODULATION 290; 5.11.1 PRINCIPLE 291; 5.11.2 ADAPTIVE DM 293; 5.11.3 DIFFERENTIAL PULSE CODE MODULATION (DPCM) 294; 5.11.4 QUANTIZATION OF SIGNALS 294; 5.11.5 QUANTIZATION ERROR 296; 5.12 NOISE CONSIDERATION IN PCM SYSTEM 297; 5.13 FDM AND TDM 298; 5.14 FREQUENCY DIVISION MULTIPLEXING TRANSMITTER 299; 5.14.1 FREQUENCY DIVISION MULTIPLEXING RECEIVER 299; 5.15 ANALOG CARRIER SYSTEM 301; 5.16 TIME DIVISION MULTIPLEXING (TDM) 302; 5.17 SYNCHRONOUS TIME DIVISION MULTIPLEXING TRANSMITTER 304; 5.18 SYNCHRONOUS TIME DIVISION MULTIPLEXING RECEIVER 304; 5.19 TDM DIGITAL CARRIER SYSTEM 305; 6.1 INTRODUCTION 316; 6.2 EXTERNAL NOISE 317; 6.2.1 ATMOSPHERIC NOISE 317; 6.2.2 EXTRATERRESTRIAL NOISE 318; 6.2.3 INDUSTRIAL NOISE (MAN-MADE NOISE) 318; 6.3 INTERNAL NOISE 319; 6.3.1 THERMAL NOISE (JOHNSON NOISE) 319; 6.3.2 NOISE VOLTAGE 320; 6.3.3 EQUIVALENT SOURCES FOR THERMAL NOISE 321; 6.3.4 NOISE VOLTAGE FOR RESISTORS CONNECTED IN SERIES 321; 6.3.5 RESISTORS IN PARALLEL 322; 6.3.6 THERMAL NOISE POWER IN A REACTANCE CIRCUIT 322; 6.3.7 SPECTRAL DENSITIES 323; 6.3.8 POWER SPECTRAL RESPONSE 323; 6.3.9 NOISE EQUIVALENT BANDWIDTH 324; 6.3.10 SHOT NOISE 328; 6.3.11 PARTITION NOISE 328; 6.3.12 FLICKER NOISE 328; 6.3.13 BURST NOISE 329; 6.3.14 TRANSIT TIME NOISE 329; 6.3.15 AVALANCHE NOISE 329; 6.3.16 TRANSISTOR NOISE 329; 6.4 SIGNAL-TO-NOISE RATIO 330; 6.4.1 SIGNAL-TO-NOISE RATIO OF A CASCADED SYSTEM 330; 6.5 NOISE FIGURE 332; 6.5.1 INPUT NOISE OF AMPLIFIER IN TERMS OF F 334; 6.5.2 NOISE FACTOR OF AMPLIFIERS IN CASCADE 334; 6.6 NOISE TEMPERATURE 335; 6.7 MEASUREMENT OF NOISE FACTOR AND NOISE TEMPERATURE 336; 6.8 NOISE IN A BANDPASS SYSTEM 337; 6.9 NOISE IN AM SYSTEMS 338; 6.9.1 SIGNAL-TO-NOISE RATIO FOR SSB 342; 6.9.2 SINGLE SIDEBAND COMPANDING 343; 6.10 EFFECT OF NOISE ON ANGLE MODULATION 343; 6.11 PRE-EMPHASIS AND DE-EMPHASIS CIRCUITS 351; 6.12 THRESHOLD EFFECT IN ANGLE MODULATION 354; 6.13 NARROWBAND NOISE 363; 6.13.1 REPRESENTATION OF NARROWBAND NOISE IN TERMS OF IN-PHASE AND QUADRATURE COMPONENTS; 6.13.2 REPRESENTATION OF NARROWBAND NOISE IN TERMS OF ENVELOPE AND PHASE COMPONENTS 366; 6.13.3 SINE WAVE PLUS NARROWBAND NOISE 368; 7.1 INTRODUCTION 385; 7.2 DIGITAL AMPLITUDE MODULATION 387; 7.3 I/Q MODULATION 388; 7.3.1 THE CONCEPT OF I AND Q CHANNELS 389; 7.3.2 APPLICATION OF I/Q MODULATION 390; 7.3.3 NEED FOR USING I AND Q 391; 7.4 SOME IMPORTANT TERMS 391; 7.4.1 INFORMATION CAPACITY, BITS, AND BIT RATE 391; 7.4.2 M-ARY ENCODING 392; 7.4.3 BAUD AND MINIMUM BANDWIDTH 392; 7.5 FREQUENCY SHIFT KEYING 393; 7.5.1 FSK BAUD AND BANDWIDTH 394; 7.6 PHASE SHIFT KEYING 396; 7.6.1 BINARY PHASE SHIFT KEYING 396; 7.6.2 M-ARY PHASE SHIFT KEYING (MPSK) 399; 7.6.3 QUADRATURE PHASE SHIFT KEYING (QPSK) 400; 7.6.4 PSK MODULATION 404; 7.6.5 MODULATION INDEX OF A QPSK SIGNAL 405; 7.6.6 OFFSET QPSK 406; 7.7 MINIMUM SHIFT KEYING 407; 7.8 QUADRATURE AMPLITUDE MODULATION (QAM) 411; 7.8.1 TYPES OF QAM 411; 7.9 BANDWIDTH EFFICIENCY 414; 7.9.1 COMPARISON OF MODULATION METHODS 415; 7.9.2 EFFECTS OF GOING THROUGH THE ORIGIN 415; 7.10 DIGITAL MODULATION TYPES 416; 7.10.1 I/Q OFFSET MODULATION 416; 7.10.2 DIFFERENTIAL MODULATION 417; 7.10.3 CONSTANT-AMPLITUDE MODULATION 418; 7.11 SPECTRAL EFFICIENCY VERSUS POWER CONSUMPTION 419; 7.12 TIME AND FREQUENCY DOMAIN VIEW OF DIGITALLY MODULATED SIGNAL 419; 7.12.1 POWER AND FREQUENCY VIEW 420; 7.13 DIGITAL TRANSMITTERS AND RECEIVERS 421; 7.13.1 DIGITAL RECEIVER 421; 8.1 INTRODUCTION 431; 8.2 MEASURE OF INFORMATION 432; 8.3 JOINT AND CONDITIONAL ENTROPY 434; 8.3.1 JOINT ENTROPY 434; 8.3.2 CONDITIONAL ENTROPY 435; 8.3.3 ENTROPY RATE 435; 8.3.4 MUTUAL INFORMATION 436; 8.4 DIFFERENTIAL ENTROPY 436; 8.4.1 INFORMATION RATE 437; 8.4.2 SOURCE CODING TO INCREASE AVERAGE INFORMATION PER BIT 438; 8.8 SHANNON-FANO CODING 445; 8.9 THE HUFFMAN SOURCE CODING ALGORITHM 446; 8.9.1 HUFFMAN CODING ALGORITHM 446; 8.11 CAPACITY OF GAUSSIAN CHANNEL 451; 8.11.1 BANDWIDTH S/N TRADE-OFF 453; 9.1 INTRODUCTION TO PROBABILITY 495; 9.1.1 THE CLASSICAL APPROACH 496; 9.1.2 THE RELATIVE FREQUENCY APPROACH 496; 9.1.3 THE AXIOMATIC APPROACH 496; 9.2 ELEMENTARY SET THEORY 497; 9.3 THE AXIOMATIC APPROACH 498; 9.3.1 IMPLICATIONS OF THE AXIOMS OF PROBABILITY 500; 9.4 CONDITIONAL PROBABILITY 500; 9.4.1 TOTAL PROBABILITY THEOREM: DISCRETE VERSION 501; 9.4.2 BAYES' THEOREM 502; 9.4.3 INDEPENDENCE 503; 9.5 RANDOM VARIABLE 504; 9.5.1 DISCRETE RANDOM VARIABLE 504; 9.5.2 CUMULATIVE DISTRIBUTION FUNCTION (CDF) 504; 9.5.3 TYPES OF RANDOM VARIABLES 505; 9.5.4 FUNCTIONS OF A RANDOM VARIABLE 508; 9.5.5 STATISTICAL AVERAGES 509; 9.5.6 MULTIPLE RANDOM VARIABLES 510; 9.5.7 MULTIPLE FUNCTIONS OF MULTIPLE RANDOM VARIABLES 510; 9.5.8 SUMS OF RANDOM VARIABLES 511; 9.5.9 JOINTLY GAUSSIAN RANDOM VARIABLES 511; 9.6 GAUSSIAN PROCESS 520; 9.6.1 CENTRAL LIMIT THEOREM 522; 9.6.2 PROPERTIES OF GAUSSIAN PROCESS 522; INTRODUCTION; TYPES OF TRANSMISSION LINES; PRIMARY AND SECONDARY CONSTANTS; CHARACTERISTIC IMPEDANCE; PROPAGATION CONSTANT; PHASE AND GROUP VELOCITY; LOSSLESS LINE; REFLECTION COEFFICIENT; VOLTAGE STANDING WAVE RATIO; TRANSMISSION LINE AS CIRCUIT ELEMENTS; TRANSMISSION LINE INPUT IMPEDANCE; SLOTTED LINE MEASUREMENT AT RADIO FREQUENCIES; TELEPHONE LINES AND CABLES; MICRO-STRIP AND STRIP-LINE TRANSMISSION LINE; INTRODUCTION; RECTANGULAR WAVEGUIDE; CIRCULAR WAVEGUIDE; RIDGED WAVEGUIDE; FLEXIBLE WAVEGUIDE; INTRODUCTION; ANTENNA TYPES; ANTENNA CHARACTERISTICS; TERMINOLOGIES AND DEFINITIONS; ANTENNA LOADING; ANTENNA ARRAYS; ANTENNA ARRAY -TYPES; SPECIAL PURPOSE ANTENNAS; VHF AND UHF ANTENNAS; ANTENNAS - LENS TYPES; INTRODUCTION; ADVANTAGES; TYPES; FREQUENCY MODULATED MICROWAVE RADIO SYSTEM; TRANSMITTER; RECEIVER; FM MICROWAVE RADIO REPEATERS DIVERSITY; FREQUENCY DIVERSITY; SPACE DIVERSITY; POLARIZATION DIVERSITY; HYBRID DIVERSITY; QUAD DIVERSITY; SWITCHING ARRANGEMENT; HOT STANDBY; DIVERSITY; RELIABILITY; FM MICROWAVE RADIO STATIONS; TERMINAL STATION; REPEATER STATION; PROPAGATION PATHS; FADING; SYSTEM GAIN; FREE SPACE PATH LOSS; FADE MARGIN; RECEIVER THRESHOLD; SIGNAL TO NOISE VERSUS CARRIER TO NOISE RATIO; NOISE FACTOR AND NOISE FIGURE; TYPICAL MICROWAVE RADIO LINK; INTRODUCTION; HISTORY; OPTICAL FIBERS OVER METALLIC CABLE; ADVANTAGES OF OPTICAL FIBER SYSTEMS; DISADVANTAGES OF OPTICAL FIBER SYSTEMS; ELECTROMAGNETIC SPECTRUM; SYSTEM BLOCK DIAGRAM; FIBER TYPES; FIBER CONSTRUCTION; THE PHYSICS OF LIGHT; VELOCITY OF PROPAGATION; REFRACTION; REFRACTIVE INDEX; CRITICAL ANGLE; PROPAGATION OF LIGHT THROUGH AN OPTICAL FIBER CABLE; OPTICAL FIBER MODES AND CLASSIFICATION; OPTICAL FIBER COMPARISON; ACCEPTANCE ANGLE AND ACCEPTANCE CONE; NUMERICAL APERTURE; LOSSES IN FIBER OPTIC CABLES; LIGHT SOURCES; OPTICAL POWER; OPTICAL SOURCES; LIGHT DETECTORS; LASERS; TYPICAL OPTICAL COMMUNICATION SYSTEM; INTRODUCTION; HISTORY; KEPLER'S LAWS; ORBITS; GEOSTATIONARY SATELLITES; DRIFTS IN GEOSTATIONARY SATELLITES; POWER SYSTEMS; ALTITUDE CONTROL; ANTENNA LOOK ANGLES; SATELLITE STATION KEEPING; LIMITS OF VISIBILITY; FREQUENCY PLANS AND POLARIZATION; SATELLITE ANTENNA RADIATION PATTERNS; SATELLITE SYSTEM LINK MODELS; SATELLITE SYSTEM PARAMETERS; SATELLITE SYSTEM LINK EQUATIONS; LINK BUDGET; SATELLITE RADIO NAVIGATION; INTRODUCTION; HISTORY; ARCHITECTURE, PROTOCOLS AND STANDARDS; STANDARDS ORGANIZATION FOR DATA COMMUNICATION; DATA COMMUNICATION CIRCUITS; DATA COMMUNICATION CIRCUIT ARRANGEMENT; DATA COMMUNICATION CODES; ERROR CONTROL; SYNCHRONIZATION; LINE CONTROL UNIT; INTERFACES; DATA COMMUNICATION NETWORKS; LAYERED NETWORK ARCHITECTURE; OPEN SYSTEM INTERCONNECTION; ALTERNATE PROTOCOL SUITE; DATA TRANSMISSION MODES; ASYNCHRONOUS PROTOCOLS; SYNCHRONOUS PROTOCOLS; INTRODUCTION; DIGITAL SERVICE UNIT AND CHANNEL SERVICE UNIT; MODEMS; INTRODUCTION; LOW SPEED MODEMS; MEDIUM AND HIGH SPEED MODEMS; BELL SYSTEM COMPATIBLE VOICE-BAND MODEMS; VOICE-BAND MODEM BLOCK DIAGRAM; VOICE-BAND MODEM CLASSIFICATION; ASYNCHRONOUS VOICE-BAND MODEMS; SYNCHRONOUS VOICE-BAND MODEMS; MODEM SYNCHRONIZATION; ITU-T VOICE-BAND MODEM SPECIFICATIONS; 56K MODEMS; THE AT COMMAND SET FOR MODEM CONTROL; CABLE MODEMS; PROBABILITY OF ERROR AND BIT ERROR; HISTORY; BASICS TV SYSTEM AND SCANNING PRINCIPLES; SCANNING; COMPOSITE VIDEO SIGNAL; CHANNEL BANDWIDTH; VESTIGIAL SIDEBAND (VSB) TRANSMISSION IN VIDEO SIGNALS; COMPLETE CHANNEL BANDWIDTH; RECEPTION OF VSB SIGNAL; TV CAMERA TUBES; PICTURE TUBE; TELEVISION TRANSMITTER AND RECEIVER; EFFECT OF NOISE; PEAK POWER AVAILABLE FROM TRANSMITTER; USE OF AGC CIRCUITS IN THE RECEIVER; SOUND SIGNAL TRANSMISSION; PREFERENCE OF FM OVER AM IN SOUND TRANSMISSION; MERITS OF FREQUENCY MODULATION; ANTENNA SYSTEM; TRANSMISSION LINE; COLOUR TELEVISION; INTRODUCTION TO RADAR; INTRODUCTION; THE CONCEPT OF FREQUENCY HOPPING; SPREAD SPECTRUM TECHNIQUES; TYPES OF SPREAD SPECTRUM; ERROR RATE PERFORMANCE OF THE DECODER; PROCESS GAIN AND PERFORMANCE; PSEUDO-NOISE (PN) SEQUENCES; KASAMI SEQUENCES; BARKER CODE; HADAMARD-WALSH CODE; FREQUENCY HOPPING; SYNCHRONIZATION OF SPREAD SIGNAL SYSTEMS; JAMMING; TIME HOPPING (TH) SPREAD SPECTRUM SYSTEMS; HYBRID SPREAD SPECTRUM; COMMERCIAL APPLICATION; MULTI-PATH CHANNELS; DIRECT SEQUENCE VS FREQUENCY HOPPING; MATLAB PROGRAMS; OTHER APPENDICES

About the Author :
V Chandra Sekar is currently working as the Professor and Head of the Department of Electronics and Communication Engineering in SASTRA University at Kumbakonam, Tamil Nadu. He has over 35 years of combined industry and academic experience. While undertaking various projects of R & D in many organizations of repute, like the TIFR, Bombay and ECIL, Hyderabad, he has also taught various subjects of ECE to fresh and practicing Engineers. He has also presented several research papers in various seminars. He has already authored a book on Analog Communication for OUP, India.


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Product Details
  • ISBN-13: 9780198078050
  • Publisher: OUP India
  • Publisher Imprint: OUP India
  • Height: 240 mm
  • No of Pages: 856
  • Spine Width: 36 mm
  • Width: 160 mm
  • ISBN-10: 0198078056
  • Publisher Date: 24 Apr 2012
  • Binding: Paperback
  • Language: English
  • Returnable: N
  • Weight: 1084 gr


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