电波科学学报2017，Vol.32Issue(4)：462-466,5.DOI:10.13443/j.cjors.2017033002
短波时差定位中电离层参数对定位影响仿真
Simulation on the effect of ionospheric parameters on TDOA location in short wave
摘要
Abstract
In the short wave band,traditional time difference of arrival(TDOA) location method is no longer applicable for the big difference between the radio path and the actual ground distance brought on by the ionospheric reflection propagation.A new TDOA location method based on ray tracing technique is proposed,and the influence of ionospheric parameters on location precision is analyzed.The results show that in obtaining accurate ionospheric information,the proposed method can accurately locate the target;ionospheric measurement error greatly affects the location precision;increase the number of sites can improve location precision and reduce the precision requirements of the ionospheric parameters.The simulation results provide a theoretical basis for the development of the short wave TDOA location system and the precision requirement of the ionospheric parameters.关键词
时差定位/射线追踪/电离层模型/定位误差Key words
TDOA location/raytracing/ionosphere model/location error分类
信息技术与安全科学引用本文复制引用
攸阳,钱志刚,李吉宁,柳文..短波时差定位中电离层参数对定位影响仿真[J].电波科学学报,2017,32(4):462-466,5.基金项目
国家自然科学基金(No.61331012) （No.61331012）
