在编码器复杂度相同的情况下，卷积码的性能优于分组码，因此卷积码几乎被应用在所有无线通信的标准之中，如GSM， IS95和CDMA 2000 的标准中。-Complexity in the encoder the same circumstances, convolutional codes perform better than block codes, the convolutional code is used in almost all wireless communication sta

7-4线性分组码编码器 vhdl描述-7-4 linear space-time block codes encoder vhdl derect

Hamming codes can detect up to two-bit errors or correct one-bit errors without detection of uncorrected errors. By contrast, the simple parity code cannot correct errors, and can detect only an odd number of bits in error. Hamming codes are perfect

卷积码是一种重要的前向纠错信道编码方式，其纠错性能常常优于分组码，且(2,1,7)卷积码已应用于现代卫星通信系统中。Viterbi译码算法能最大限度地发挥卷积码的优异性能。这里采用Verilog  HDL语言设计出(2,1,7)卷积码的编码器模块和基于Viterbi算法的译码器模块，译码器采用全并行结构，译码速度快-Convolutional code is an important forward error correction channel coding method, and