电波科学学报2024，Vol.39Issue(3)：455-464,10.DOI:10.12265/j.cjors.2023175
一种参考源修正的短波辐射源时差定位方法
A short-wave target time difference of arrival localization method corrected by calibration emitters
于家傲 1敬东 2夏冬玉 2夏楠 3杨洋 4张玉2
作者信息
- 1. 93209部队,北京 100010||95838部队,呼和浩特 010020
- 2. 93209部队,北京 100010
- 3. 大连工业大学,大连 116034
- 4. 95838部队,呼和浩特 010020
- 折叠
摘要
Abstract
A time difference of arrival(TDOA)localization method is proposed for short-wave target corrected by calibration emitters.Based on the ionospheric reflection virtual height of spherical reflection model,a TDOA localization model is established for short-wave source targets and calibration emitters on the Earth's surface.Considering the influence of ionospheric reflection region shared by calibration emitters and target,the distance correlation of each ionospheric reflection point is introduced into the covariance matrix of ionospheric virtual height,and the target localization accuracy is corrected.The feasibility of the target localization accuracy corrected by calibration emitters is analyzed by deriving and simulating the Cramer-Rao lower bound.Further,a maximum likelihood estimation method is proposed based on Armijo's linear search Newton method.Effectiveness of the proposed method is verified by simulation data,and a good localization effect is achieved.关键词
短波/电离层虚高/到达时间差(TDOA)/克拉美·罗下界(CRLB)/参考源Key words
shortwave/ionosphere virtual height/time different of arrival(TDOA)/Cramer-Rao low bound(CRLB)/calibration分类
信息技术与安全科学引用本文复制引用
于家傲,敬东,夏冬玉,夏楠,杨洋,张玉..一种参考源修正的短波辐射源时差定位方法[J].电波科学学报,2024,39(3):455-464,10.
