作　　者： ; (金宏）; (王宏安）;

机构地区： 中国石化股份有限公司

出　　处： 《计算机工程与应用》 2004年第28期167-170,173,共5页

摘　　要： 在开发实时数据库中,对历史数据的存储和管理非常重要,由于大量的数据存储,需要高效的历史数据压缩算法。文章基于均方误差的设计思想,提出了一种新的历史数据压缩算法、给出其详细步骤,并和OSI软件公司开发的旋转门算法进行比较。仿真结果表明,该文提出的新压缩算法具有更高的数据压缩率,降低了测量误差对数据压缩影响。 In the development of the real-time database,the storage and management of historical data are very impor-tant.High efficient compression algorithms of historical data are necessary for large storage of data.A new compression algorithm of historical data is presented from the mean square error of view in this paper and compared with the well-known swinging door algorithm developed by OSI Software Inc.The detail steps of the proposed compression algorithm of historical data are given.Simulations show that the proposed compression algorithm has a higher data compression ratio than the swinging door algorithm and can act as decreasing effect of measurement noise on data compression.

关 键 词： 实时数据库 数据压缩 数据存储

领　　域： [自动化与计算机技术] [自动化与计算机技术]