Pulse Code Modulation Systems DesignThis text explains basic PCM concepts and performance parameters, and provides key methods for estimating system performance and transmission loss. More advanced, practical sessions cover PCM symbols, modulation and demodulation techniques, and detection and synchronisation problems. There are also design charts containing various PCM signalling methods that can be used to calculate system performance as you go along, and ready-made performance parameter formulas and system equations which readers will be able to import directly into their calculators or PCs. |
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Page 14
... parameter . For example , dBm refers to a power level expressed in milliwatts ( mW ) . The generic worksheet provides entries at the top of the sheet to record general parameters of the system , items such as the transmission bit rate ...
... parameter . For example , dBm refers to a power level expressed in milliwatts ( mW ) . The generic worksheet provides entries at the top of the sheet to record general parameters of the system , items such as the transmission bit rate ...
Page 15
William N. Waggener. Table 1.1 Generic Worksheet Project # System parameters Transmission carrier System Worksheet Date : Modulation frequency MHz Bit rate Bits per Transmission second link distance km Line # Parameter Value Units dB ...
William N. Waggener. Table 1.1 Generic Worksheet Project # System parameters Transmission carrier System Worksheet Date : Modulation frequency MHz Bit rate Bits per Transmission second link distance km Line # Parameter Value Units dB ...
Page 17
... parameters given and the assumptions made , the data link design margin is only 1 dB . This quick analysis shows that design assumptions and parameters must be carefully refined to determine if the margin estimate is accurate . The ...
... parameters given and the assumptions made , the data link design margin is only 1 dB . This quick analysis shows that design assumptions and parameters must be carefully refined to determine if the margin estimate is accurate . The ...
Common terms and phrases
amplitude antenna applications approximately assumed band bandwidth baseband binary bit error probability block cable called carrier channel communication complex component computed considered constant correct decision decoder defined demodulator density depends detection detector difference direct distance earth effective encoder energy equal equivalent estimate example fiber field filter frequency function gain given ideal input length less limited lock loop loss matched filter maximum mean square method modulation Networks noise normalized Nyquist optical output path PCM systems performance period phase photons produces propagation pulse radio random range receiver reduce reference reflection relative represented response sampling sampling rate sequence shift shown in Figure signal signal-to-noise ratio spectral spectrum standard stream symbol synchronization Table term tion transmission transmitted types typical weight zero