论文部分内容阅读
1.问题的提出在宽频带调频传输系统中,时延失真会引起传输信号的畸变和交调。中频电路的时延失真主要来源于带通滤波器。为了满足一定的时延容差要求,就必须对滤波器的时延失真进行预均衡。
1. The question put forward In wideband FM transmission system, the delay distortion will cause the transmission signal distortion and intermodulation. IF circuit delay distortion mainly comes from the band-pass filter. In order to meet certain delay tolerance requirements, filter delay distortion must be pre-equalized.