| 释义 |
LDPCCOCA¹⁶³⁵⁰⁸
基本例句
低密度奇偶校验码¹⁰⁰
Moreover, this decoder is also compatible with various block- lengths and code- rates, so only one decoder is needed for different LDPC codes with the same column weight.
该译码器可兼容多种码长、多种码率的 LDPC码，因此只需要设计一个译码器，就可以完成对具有相同列重的不同 LDPC码的译码。 cnki
By analyzing the discretized density evolution theory and the differential evolution algorithm, a method is proposed to search optimal irregular LDPC code for joint optimization of the system.
在分析和阐述了离散概率密度演化理论和多维线性空间极值问题的基础上，给出了适合于该方案的非正则 LDPC码的搜索算法和搜索结果。 cnki
Simulation results show that the optimal LDPC code rates in LDPC- coded IDMA system are between0.4 and0.5 for reliable communication services over AWGN channel.
仿真结果表明，在 AWGN信道中，对于可靠的通信传输服务，基于LDPC编码的IDMA系统传输的最佳 LD- PC编码码率在0.4和0.5之间； cnki
This scheme considers the decoding property of irregular LDPC codes and decides whether iterative decoding continues based on the log-likelihood ratio value of lowest degree variable nodes.
该方案考虑到非规则 LDPC码的译码特点，通过度数最低的变量节点的似然信息来判定迭代译码是否继续。 fabiao
Through modifying the object function of the new algorithm, a proper tradeoff can be realized between LTF and ALTF for more satisfying performance parameters of LDPC codes.
该算法不仅可以进一步提高优化性能，还可以通过修改目标函数在下三角和准下三角之间合理均衡以便确定 LDPC编码优化的最佳性能参数。 cnki |