Digital microwave transmission
著者
書誌事項
Digital microwave transmission
（Studies in electrical and electronic engineering, 38）
Elsevier, 1989
- タイトル別名
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Digitális mikrohullámú átviteltechnika
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注記
Rev. translation of: Digitális mikrohullámú átviteltechnika
Includes bibliographical references
内容説明・目次
内容説明
Digital transmission has assumed a greater role in transmission networks of the world as well as in terrestrial microwave and satellite systems. The aim of this book is to present in detail the theoretical and practical problems encountered in digital microwave transmission. Some aspects of the theoretical background of the field, for example the effect of wave propagation on high-speed transmission, direct regenerators, and digital phase-locked loops, treated in the first four chapters, have not yet been dealt with in other books. In the chapters which follow, the practical implications of subsystems, such as modulators, carrier recovery circuits together with baseband signal processing, and the auxiliary equipment, are described. The book is designed to be of use not only for those relatively new to the field, but more especially for researchers and graduate students who wish to augment their knowledge.
目次
1. Introduction (I. Frigyes). 2. Transmission of Digital Signals Over Analog Channels (I. Frigyes). Transmission of single signals. Transmission of signal sequences. Multichannel transmission. Transmission of digital signals over nonlinear channels. 3. Carrier and Clock Recovery (I. Frigyes, P. Vanyai). Phase-locked loops. Implementations of digital phase-locked loops. Transmission of the phase information: carrier recovery. Transmission of the timing information: clock recovery. 4. Properties of the Microwave Transmission Path (I. Frigyes). Terrestrial radio relay - low and medium capacity systems. Terrestrial radio relay - high capacity systems. Multipath countermeasures. Total probability of outage. Satellite systems. Frequency re-use. 5. Methods of Encoding and Digital Transmission Tasks (P. Vanyai). Source and channel encoding. Conventional source encoding methods. Digital transmission tasks. 6. Digital Microwave Transmission Systems (P. Vanyai). Radio relay transmission. Waveguide transmission. Satellite transmission. 7. Modulators and Transmitters (Z. Szabo). General considerations. Phase modulators (PSK). Quadrature amplitude modulator (QAM). Partial response system modulator (PRS). O-QPSK and MSK modulator. Amplitude modulators (ASK). Frequency modulators (FSK). Microwave carrier supplies. Microwave power amplifiers. 8. Demodulators and Receivers (Z. Szabo). General considerations. Demodulation of PSK signals. Demodulation of QAM signals. Demodulation of QPRS signals. Demodulation of O-QPSK and MSK signals. Demodulation of ASK signals. Degradations due to the transmit-receive section. Demodulation of FSK signals. 9. Carrier Recovery Circuits (Z. Szabo). M-PSK transmission. O-QPSK and MSK transmission. M-QAM transmission. QPRS transmission. 10. Baseband Signal Processing (P. Vanyai). Baseband code systems. Spectral behaviour of encoded signals. ``Whitening'' of the binary information (scrambler). Differential encoding. Error multiplication effect of differential encoding, Gray encoding. Realization of Gray encoding and decoding. Phase ambiguity of QPSK transmission. Examples for baseband circuit realization. References. 11. Auxiliary Equipment (I. Frigyes). Continuous monitoring of transmission performance. Error counting methods. Transmission of service information. Stand-by channel systems. All chapters contain references.
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