8单径瑞利信道中的四发四收V-BLAST： (1) 请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16QPSK调制时的误码率性能。画出比特信噪比与信道估计均方误差的关系曲线，画出比特信噪比与误码率的关系曲线。 (2) 计算所设计方案的频谱效率是多少，单位为bit/Hz/s。-8 Single-Path Rayleigh Channel Four received four V-BLAST: (1) Please design a specific guide-a

本文完成qpsk信号生成，查看频谱图，学习曲线的绘制-This complete qpsk signal generation, see spectrum, LMS learning curve drawing

qpsk调制和扩频扰码是无线通信中，基带信号处理很重要的步骤，本程序主要针对td-scdma系统的基带处理-qpsk scrambling code modulation and spread spectrum wireless communication, the baseband signal processing is an important step, the process aimed at td-scdma system baseband processor

对802.11协议模拟的OFDM信号的两种速率6Mbps（BPSK调制）和12Mbps（QPSK调制）进行循环谱检测来验证对OFDM信号检测的可行性。(Cyclic spectrum detection is performed on two rates of OFDM signals simulated by the 802.11 protocol, 6 Mbps (BPSK modulation) and 12 Mbps (QPSK modulation) to verify the fea