LDPC码的完整的编译码，单径或多径瑞利衰落信道仿真，对于初学matlab的同学会有帮助，可以得到很精确的幅值、频率、相位估计，GPS和INS组合导航程序。- Complete codec LDPC code, Single path or multipath Rayleigh fading channel simulation, Matlab for beginner students will help, You can get a very accurate amplitude, freq