(1)请推导单径瑞利信道中的BPSK相干解调的理论误码率(BER)性能，并画出比特信噪比(Eb/N0)与误码率的关系曲线。
(2)在单径瑞利信道中，请设计一种时分的导引辅助的信道估计方法，用Simulink(或m语言)进行仿真，测量BPSK的误码率性能，画出比特信噪比与误码率的关系曲线，并与理论误码率曲线进行对比。((1) Please derive the theoretical bit error rate (BER) performance of BPSK coherent demodulation in single path Rayleigh channel, and draw the relationship curve between bit signal-to-noise ratio (EB / N0) and bit error rate.
(2) In the single path Rayleigh channel, please design a time division guidance aided channel estimation method, simulate with Simulink (or M language), measure the BER performance of BPSK, draw the relationship curve between bit SNR and BER, and compare with the theoretical BER curve.)