目前,大多数LDPC编码器采用的是FPGA实现,文中根据Richarson和Unbanke提出的有效编码算法,具体分析了基于该算法的编码器在DSPs上的设计思路,并联合考虑校验矩阵的存储与运算,给出了一种高效的存储方式和矩阵向量乘法的计算方法。此外,结合DSPs的软件流水功能,对程序进行了优化,使实现编码所需的指令周期大幅减少,从而提高编码速率。 At present, most LDPC encoders use FPGA implementation. According to the effective coding algorithms proposed by Richarson and Unbanke, the design ideas of encoder based on DSPs are analyzed in detail, and the storage and computation of parity check matrix , Gives an efficient method of storage and matrix vector multiplication. In addition, combined with the software pipeline function of DSPs, the program is optimized, so that the instruction cycle needed to achieve coding is greatly reduced, so as to improve the coding rate.