在高斯信道上的BER给出BPSK（不同于SER）性能曲线（包括理论和Monte Carlo仿真曲线，横坐标为E_b/N_0）- The BER on the Gauss channel gives BPSK (different SER) performance curves (including the theoretical and Monte Carlo simulation curves, and the abscissa is E_b/N_0)