BPSK DS/SS외 QPSK DS.SS 신호 복호에서 채널 왜곡의 영향

Channel Distortion Effects on a BPSK DS/SS and a QPSK DS/SS Signal Demodulation

The degradation due to channel distortion in a quadrature modulation system from the ideal constant values over the bandwidth of a direct sequence spread spectrum signal are considered. Through using series expansion for the channel gain and phase response, the degradation in the correlator output at the receiver is found as a function of the parameters involved , including phase error, delay error, linear gin variation, quadratic gain variation, and quadratic phase variation.