Function to generate PN9 sequence, used for creating WCDMA Test Model channels. This is a MATLAB implementation of a PN9 sequence generator.

该程序实现了使用非线性压扩函数对OFDM信号进行压扩变换，并对其在AWGN下的误码性能进行了测试。-This manuscr ipt exploit the nonlinear companding function to reduce the PAPR in OFDM system, and test the BER performance in AWGN channel