文中首先对卫星通信的信道特性进行分析,然后对广泛采用的卫星信道编码技术进行了描述和评价,重点讨论并分析了Turbo码、LDPC码、编码调制技术、串行级联编码和喷泉编码等新型信道编码技术的实现原理及性能,列举了各种新型信道编码技术在卫星系统中的应用情况及主要优点、不足。最后,展望了卫星信道编码技术的新发展方向。
Based on the description and evaluation of the mostly used satellite channel coding technology, this paper focuses on the principle and performance of the new channel coding technologies, such as Turbo, LDPC, coded modulation, concatenated coding and Raptor coding etc. It has cited the applications of various new channel coding technologies in satellite systems and pointed out the development trend of satellite channel coding technologies,