电讯技术2017，Vol.57Issue(5)：523-527,5.DOI:10.3969/j.issn.1001-893x.2017.05.006
低轨时差频差系统对运动目标的定位能力
Moving Target Location Capability of a Low-orbit TDOA/FDOA System
王勤果1
作者信息
- 1. 中国西南电子技术研究所,成都 610036
- 折叠
摘要
Abstract
High-speed moving targets in battlefield are of great threat in general.But existing spaceborne electronic reconnaissance measures cannot meet the requirement of battlefield awareness for locating and tracking fast targets.Based on the research on Time Difference and Frequency Difference of Arrival(TDOA/FDOA) principles,an innovative tri-satellite locating system is constructed in purpose of promoting the profile capability of dual-satellite system.By using Kalman filtering algorithm,the system achieves location and speed estimation of high-speed aerial targets.As tested in the simulation,the location accuracy of the system for high-speed aerial targets is within kilometers,and the speed estimation error is in 10 m/s level,which adequately demonstrates the engineering feasibility of the system.The improvement greatly expands the application scope of space TDOA/FDOA system and effectively enhances the battlefield awareness capability.关键词
天基电子侦察/战场态势感知/运动目标定位/时差/频差系统/卡尔曼滤波Key words
spaceborne electronic reconnaissance/battlefield situation awareness/moving target location/TDOA/FDOA system/Kalman filter分类
信息技术与安全科学引用本文复制引用
王勤果..低轨时差频差系统对运动目标的定位能力[J].电讯技术,2017,57(5):523-527,5.
