说明：  设计一种具体的导引辅助的信道估计方法,用Simulink进行仿真,测量BPSK调制时的误码率性能,画出比特信噪比与信道估计
(A specific guidance-assisted channel estimation method is designed and simulated with Simulink. The bit error rate (BER) performance of BPSK modulation is measured, and the bit-to-noise ratio (SNR) and channel estimation are drawn.)