Minimization of Detection of Baud Rate Spectral Lines by Delay and Multiply Receivers
- 1 October 1986
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
Abstract
The detectability of the baud rate of a digitally modulated signal that uses Nyquist pulses is investigated. The intercept receiver is assumed to be a delay and multiply circuit followed by a complex correlator. Since many digital transmission systems use rectangular pulse shapes, Nyquist pulse rate line detectability is considered for receivers optimized for rectangular pulses. For a receiver configuration that is reasonable for rectangular pulses, it is found that with a Nyquist pulse with parameter α = 0.25, the rate line signal-to-noise ratio is down about 20 dB from that for a rectangular pulse signal.Keywords
This publication has 2 references indexed in Scilit:
- Performance Analysis of the Delay-Line Clock RegeneratorIEEE Transactions on Communications, 1986
- Joint Carrier Phase and Symbol Timing Recovery for PAM SystemsIEEE Transactions on Communications, 1980