多频码相结合渐消因子扩展卡尔曼滤波实时定位方法  

A Real-time Positioning Method Using Fading Factor Kalman Filter based on Multi-frequence Carrier Phase and Precise Code Observations

作　　者：陈明剑[1] 周凤歧[1] 李海峰[1] 

机构地区：[1]西北工业大学航天学院,西安710072

出　　处：《火力与指挥控制》2010年第5期117-120,共4页Fire Control & Command Control

基　　金：武器装备预研基金资助项目(9140A21040108JB5205)

摘　　要：基于卫星导航定位系统多频载波相位线性组合,采用较长波长的组合波观测值与码观测值,能够较快并准确地获得模糊度,在此基础上,尝试综合利用最小二乘以及渐消因子扩展Kalman滤波技术进行实时单点定位,通过应用分析,获到较好的导航定位结果,具有一定工程应用价值。Based on the theory of the linear combination of multi-frequency carrier phase,we have use the precise code observations and the wave Observations which wavelength is long enough.The ambiguity resolution can be get well and truly.And then,we attempt to real-time point positioning using the least squares technology and the fading factor extended Kalman filter technology.From the analysis of the application,the better navigation result can be achieved.This method can be applied to engineering-oriented applications.

关 键 词：整周模糊度 多频载波相位线性组合 渐消因子扩展卡尔曼滤波 实时定位 

分 类 号：P228.4[天文地球—大地测量学与测量工程]