LDPC码的完整的编译码，搭建OFDM通信系统的框架，FIR 底通和带通滤波器和IIR 底通和带通滤波器，采用的是脉冲对消法，添加噪声处理，多目标跟踪的粒子滤波器。-Complete codec LDPC code, Build a fr a mework OFDM communication system, Bottom-pass and band-pass FIR and IIR filter bottom pass and band-pass filter, It uses a pulse of consumer law, Add noise processing, Multi-target tracking particle filter.