综合射频系统中Turbo码的应用研究  

Application of Turbocodes inintegrated RF systems

作　　者：苏琴[1] 

机构地区：[1]河海大学计算机与信息学院,江苏南京211100

出　　处：《电子设计工程》2015年第3期144-146,150,共4页Electronic Design Engineering

摘　　要：综合射频系统具有可靠性高,抗干扰能力强、占用空间小等特点,需要采用纠错性能强的信道编码技术,因此选择了接近Shannon理论极限的Turbo码作为综合射频系统的通信信号信道编码。同时,为了降低Turbo码的译码复杂度,提出了一种基于现有算法的改进的Max-Log-MAP算法,并对不同的译码算法进行纠错能力的仿真比较,结果表明改进的Max-Log-MAP算法的复杂度略高于Max-Log-MAP算法,而性能更接近Log-MAP算法,易于工程实现。Integrated RF system has highreliability, stronganti-jamming capability, small footprint, etc., we need a strongerror-correctioncapability of the channel coding technique, and thereforechose Turbocodes which close to Shannon the oretical limit asintegrated RF system channel sencoding.Meanwhile, in order to reduce Turbo decoding complexity,a new decoding algorithm based on the improvement of Max-Log-MAP algorithmsis proposed, and comparethe error-correction capability of different decoding algorithm, the results show that the complexityof improved Max-Log-MAP algorithm isslightly higher than Max-Log-MAP algorithm, but the performanceis closer Log-MAP algorithm, easy to project implementation.

关 键 词：综合射频系统 TURBO码 LOG-MAP 改进Max-Log-MAP 

分 类 号：TN911.22[电子电信—通信与信息系统]