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

pcm编解码程序，应用于通信过程中的信道编码部分，以减小误码率。-pcm coding process used in the communication process part of the channel coding to reduce the error rate.

LDPC编码，BPSK调制，AWGN信道，译码，可以仿真出误码率曲线-LDPC coding, BPSK modulation, AWGN channel decoding, the BER curves can be simulated

完成了对OFDM（正交频分复用）通信系统从信号输入，编码，发射，解码，求误码率的全过程，压缩包中word文件为系统仿真报告，其他为matlab代码。-Completes the OFDM (Orthogonal Frequency Division Multiplexing) communication system the signal input, encoding, transmitting, decoding, bit error rate of the entire process