lfsr初始状态的快速盲恢复方案

First International Multi-Symposiums on Computer and Computational Sciences (IMSCCS'06) Pub Date : 2006-06-20 DOI:10.1109/IMSCCS.2006.62

Xiangyang Luo, Ping Wang, Peizhong Lu, Fenlin Liu

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引用次数: 1

摘要

针对高错误率的线性反馈移位寄存器序列，提出了一种快速盲恢复方案。该方案将离线搜索和在线解码相结合，以恢复LFSR序列的初始状态。在恢复过程中，包括两个关键步骤:一是快速找到尽可能多的奇偶校验方程来构造低速率、高纠错能力的卷积码;二是基于改进的Viterbi算法对卷积码进行解码

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Fast and Blind Restoration Scheme for the Initial States of LFSRs

A fast and blind restoration scheme for LFSR (linear feedback shift register) sequences with high error ratio is proposed. This scheme combines searching-offline and decoding-online to restore the initial state of a LFSR sequence. During the restoring process, two key steps are included: one is to quickly find as many parity-check equations as possible to construct the convolutional code with low rate and high correcting capability, and the other is to decode the convolutional codes based on the improved Viterbi algorithm

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First International Multi-Symposiums on Computer and Computational Sciences (IMSCCS'06)

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