摘要
分析了交织器在Turbo码中的作用,指出了现有的几种交织器的缺点。设计了两种新型的基于块交织的S随机交织器和基于伪随机交织的S随机交织器。仿真结果表明,与现有的几种交织器相比,这两种交织器在Turbo码译码迭代次数及延时方面性能更好,更适合于分布式视频编码系统。
The functions of interleavers in Turbo codes are analyzed and the disadvantages of several existing interleavers are pointed out. Two novel interleavers, Block-based S-random Interleaver （BSI） and Pseudo Random-based S-random Interleaver （PRSI）, are designed. Simulation results indicate that compared to the existing interleavers, the designed interleavers have better performance in aspects of iteration times of Turbo decoding and lateney, and are therefore more suitable for distributed video coding system.
出处
《电视技术》
北大核心
2008年第4期35-37,共3页
Video Engineering
