基于光电导航的伪卫星空中基站定位算法  

Positioning Algorithm for Airborne Pseudolites Based on Electro-optical Navigation

作　　者：王玮[1] 关宇威[1] 胡胜军[1] 刘宗玉[2] 

机构地区：[1]北京航空航天大学仪器科学与光电工程学院,北京100191 [2]北京控制工程研究所,北京100083

出　　处：《中国空间科学技术》2012年第3期15-19,共5页Chinese Space Science and Technology

基　　金：国家自然科学基金(60804056)资助项目

摘　　要：由于具有抗干扰能力强和布置灵活机动的特点,伪卫星在增强卫星系统和独立组网为用户提供更高精度导航定位信息方面具有广阔的应用前景。伪卫星空中基站的精确定位是构建伪卫星区域定位系统的一个关键问题。为此,研究了一种基于光电导航的定位算法,综合利用光电探测成像信息和惯性导航信息,根据伪卫星空中基站的特点建立了相应的误差模型,并采用最小二乘法估计位置误差。计算机仿真结果表明所提算法简单,具有较大的实用价值。Due to the stronger anti-jamming capability and flexibility compared with orbiting satellites, pseudolite-based positioning systems provide more precise navigation information. To position precisely for airborne pseudolites is one of the key technique to construct the pseudolite-based regional positioning system. The positioning algorithm based on electro-optical navigation was studied. The error model was established according to the characteristics of airborne pseudolites and the least-squares method was employed to estimate the position errors using the information from images and inertial navigation system. The simulation results indicate that the algorithm proposed is feasible and has great practical value.

关 键 词：光电导航 空中基站定位 惯性导航 最小二乘估计 伪卫星 

分 类 号：TN929.5[电子电信—通信与信息系统]