A communication system model is constructed under Rician channel, the performance of serially-concatenated Turbo code is studied and simulated. According to the principle of adaptive filtering, a modified system model is proposed and its performance is also analyzed. Simulation results show that within a certain range of the Rician factor, the system performance can be improved by the modified model of adaptive filtering algorithm and an additional SNR gain about 0. 5dB can be produced.%在Rician信道条件下,构建了一个通信系统模型,研究了串行级联Turbo码的性能,并进行了仿真分析.在此基础上根据自适应滤波原理改进了原有系统模型.仿真结果表明,当主径衰落因子在一定范围内时,运用自适应滤波算法的改进模型可以提高系统性能,带来额外信噪比增益约0.5 dB.
展开▼
