High Error-Resilient Justification Recovery Algorithm Based on Maximum Posteriori Probability
Yan Zou · Jisuanji gongcheng · 2008
To solve the problem of justification recovery in digital demultiplexing stage in the environment of high error channel,a high error-resilient of justification recovery algorithm,High Error-Resilient Prediction(HERP)algorithm is proposed in this paper.HERP algorithm makes use of the justification statistics knowledge of 2-ary digital group and the feedback information from justification indicating code.This algorithm considers the justification prediction of the current frame in a continuous prediction sequence,which can lead to a global optimal prediction sequence and implement high error-resilient in justification.The simulation experiment shows HERP algorithm has improved nearly by ten times in the aspect of error-resilient and accuracy compared with most decision algorithm which is recommended by ITU.