摘要
针对CCSDS系统中低密度奇偶校验码(LDPC),提出了一种低复杂度高速并行译码器实现方法。该方法利用LDPC码校验矩阵的循环结构特性,在传统的和积译码算法(SPA)上做了改进,使得在迭代次数为8的情况下,译码性能与理论值基本一致。
This paper presents a low complexity,high speed parallel decoding method for low density parity check( LDPC) codes in CCSDS system. This method is based on the circulation character of check array,and improves the traditional sum product algorithm( SPA). The decoding performance is closed to the theoretical value with 8 fixed iterations.
出处
《信息技术》
2015年第4期170-172,180,共4页
Information Technology