说明：  在单径瑞利信道中,设计一种时分的导引辅助的信道估计方法,用Simulink进行仿真,测量BPSK的误码率性能,画出比特信噪
(In a single-path Rayleigh channel, a time-division guided aided channel estimation method is designed. The channel estimation is simulated by Simulink, and the BER performance of BPSK is measured, and bit signal noise is drawn.)