历史数据压缩算法在DSP上的实现  

Realization of Historty Data Compressing Algorithm Based on DSP

作　　者：黄豪佑[1] 董辉[1] 卢建刚[1] 

机构地区：[1]浙江大学工业控制技术国家重点实验室,浙江杭州310027

出　　处：《计算机测量与控制》2006年第12期1686-1688,共3页Computer Measurement &Control

基　　金：国家自然科学基金(20206027);国家十五科技攻关计划(2004BA210A01);浙江省科技计划项目(2006C310512006C33059)

摘　　要：工业控制中需要记录大量的历史数据,因其数据量庞大,需要的存储空间也及其庞大,同时网络传输过程的实现比较困难,针对这一情况,提出了一种基于整数小波变换和多级树集合分割编码压缩新算法,并在DSP平台上实现,给出仿真结果,结果表明此算法可方便地控制数据压缩比和重构误差,并且具有压缩速度快、重构误差小和压缩比高的特点。A novel compression algorithm for the history data recording of industry control system is proposed. This algorithm is based on integer wavelet transform and set partitioning in hierarchical trees for controlling data＇s compression ratio and reconstruction difference expediently. The simulation results showed that the features of algorithm were fast compression rate, high compression ratio and small reconstruction difference when the method was applied to the compression decompression process of temperature signals.

关 键 词：数据压缩 整数小波变换 多级村集合分割编码 

分 类 号：TP274[自动化与计算机技术—检测技术与自动化装置]