对分组码的chase2译码算法比较与硬判决，未编码情况下的提高了误码率增加了编码增益-right to a code decoding algorithm chase2 compared with the hard decision, no coding of the increased bit error rate increased coding gain

AWGN-Rayleigh-BPSK-DSSS(BPSK调制解调直接序列扩频系统源代码(白噪声及瑞利衰落误码率比较)并给出误码率曲线的程序-AWGN-Rayleigh-BPSK-DSSS (BPSK direct sequence spread spectrum modulation and demodulation system source code (white noise and Rayleigh fading error rate comparison) and the procedu

基于matlab的2fsk的调制与解调源程序，以及眼图，误码率的计算，相干解调，非相干解调的比较-Matlab-based 2fsk the source of the modulation and demodulation, as well as the eye diagram, bit error rate calculation, coherent demodulation, comparison of non-coherent demodulation

本算法主要是16QAM的算法，通过基带调制和解调，将码字映射到I和Q星座图上，并在不同的SNR下，将理论误码率和实际误码率比较，经验证有效。适合初学者逐步学习QAM。-The algorithm This algorithm is 16QAM, by the base band modulation and demodulation, the code word is mapped to the I and Q constellation and under different SNR, the