计算机应用与软件Issue(6)：160-162,207,4.DOI:10.3969/j.issn.1000-386x.2015.06.039
过采样滤波器组作为纠错码的阈值新算法
NEW THRESHOLD ALGORITHM WITH OFBS AS ERROR-CORRECTION CODE
摘要
Abstract
Considering the quantisation noise and channel noise,we construct OFBS-based joint source-channel coding (JSCC)system, and study the performance of transmission error detection and correction of the system.We also propose a new threshold selection method, which is based on Bayesian hypothesis testing and takes it for the theoretical basis,it can carry out real-time analysis according to practical signal and noise statistical characteristics to obtain the proper threshold.The system is simulated with Matlab,results show that when channel is under different transition probability conditions,the new threshold algorithm using OFBS as error-correcting codes has low computational complexity,and has good error correction performance as well.Through error correction on one-dimensional signal,the peak signal-noise ratio of the signal improves 1 db to 2 db in average.关键词
过采样滤波器组/纠错码/阈值/联合信源信道编码Key words
Oversampled filter banks (OFBS)/Error correction code/Threshold/JSCC分类
信息技术与安全科学引用本文复制引用
黄晓红,高荣蔓..过采样滤波器组作为纠错码的阈值新算法[J].计算机应用与软件,2015,(6):160-162,207,4.基金项目
河北省教育厅项目（Q2012029）。 （）
