code diversity meaning in Chinese

编码分集

In detail , they are bit - interleaved coded modulation ( with iterative decoding ) , low - density parity - check codes and stf technology . by the performance analysis of bicm ( - id ) , which can make code and modulation optimal separately , and achieve maximum possible coding diversity as well as modulation gain , guidelines for its design and an easy algorithm for siso are proposed . design of capacity - approaching of ldpc codes and efficient encoding of them as well as several kinds of its decoding algorithms are investigated
具体的讲，就是讨论了基于比特交织的编码调制技术，并给出了映射方式的设计准则以及核心模块siso的一种简单的f - map算法；研究了编码最小汉明距随码长线性增加的ldpc码的几个方面的问题，包括接近香农限码子集的度分布对的设计、有效编码器的实现和各种译码算法的优缺点，并对基于ldpc码的bicm应用于ofdm传输系统中的性能进行了仿真。