海上试验系统定位点迹外推算法设计  

Algorithm Design of Trace Extrapolation for Seaborne Test System

作　　者：李旭[1] 

机构地区：[1]中国电子科技集团公司第五十四研究所,河北石家庄050081

出　　处：《数字技术与应用》2017年第7期144-145,共2页Digital Technology & Application

摘　　要：针对海上试验平台位置点迹丢失问题,介绍了一种基于α-β-γ滤波的外推方法,使用导航信号跟踪失锁前序点迹对无效定位时刻坐标进行预测,计算复杂度低,并使用实际采集点迹对算法进行了仿真分析。仿真结果表明,除匀变速运动外,该方法对于缓变加速平台运动同样具有较好的外推结果,具有较高的工程实用价值。In order to solve the localization failure problem of sateUite positioning equipment set on seaborne platform, an extrapolation method based on α-β-γ fiker was introduced here, which estimates the coordinates of the invalid point tracks by the trace before satellites signal loss lock, and it has low computational complexity, and was analyzed by simulation using actual data. The result shows that the method also performs well in the nonuinform variable motion processing besides in the uniform one, and it has practical value of engineering application.

关 键 词：运动建模 Α-Β-Γ滤波 失锁 点迹外推 

分 类 号：TN957.52[电子电信—信号与信息处理]