不同信噪比下2FSK,2PSK,4PSK,16PSK,16QAM误码性能仿真

编写了MATLAB程序生产和扩频码进行仿真，仿真程序从发送方完成通道的接收端，得出在不同的扩频码，在不同的信噪比即误码率的图形比较直接序列扩频通信系统原理，改善系统性能的度-Written MATLAB program to produce and direct sequence spread spectrum communication system principle of spreading codes for simulation, emulation program to comple

OFDM系统的整个模型仿真，采用DQPSK调制和解调，输出误码率的程序。-The simulation model of the entire OFDM system, the programme of output error rate

ds-cdma系统仿真,考虑在多径衰落信道情况下,系统的误码率,-Ds- cdma system simulation, consider in the case of multipath fading channel, the system ber,