CAJ | 학술논문

针对转发式卫星定位系统目前尚处建设初期，可用卫星数量较少，基于实测数据的相关实验和精度验证工作较难开展等问题，利用我国 BDS 中类转发式系统的 GEO 卫星和 IGSO 卫星数据，提出仿真类转发式卫星的虚拟钟数据和观测数据的技术方法，并基于转发式定位原理进行相应导航定位精度验证实验。数值算例结果表明，利用5颗 GEO 卫星和1颗 IGSO 卫星，用户站的差分定位精度在平面上约为2 m，高程精度优于3 m，利用5颗 GEO 卫星和5颗 IGSO 卫星，用户站的差分定位精度平面和高程方向上均优于0．1 m，初步验证了转发式导航定位系统的精度和性能。
침대전발식위성정위계통목전상처건설초기，가용위성수량교소，기우실측수거적상관실험화정도험증공작교난개전등문제，이용아국 BDS 중류전발식계통적 GEO 위성화 IGSO 위성수거，제출방진류전발식위성적허의종수거화관측수거적기술방법，병기우전발식정위원리진행상응도항정위정도험증실험。수치산례결과표명，이용5과 GEO 위성화1과 IGSO 위성，용호참적차분정위정도재평면상약위2 m，고정정도우우3 m，이용5과 GEO 위성화5과 IGSO 위성，용호참적차분정위정도평면화고정방향상균우우0．1 m，초보험증료전발식도항정위계통적정도화성능。
The China Area Position System (CAPS)is still in the construction and has not enough available satellite.The experiments to evaluate the accuracy of positioning are difficult to perform.In case of BeiDou navigation satellite system (BDS) contains geostationary orbit (GEO)satellites and Inclined Geosynchronous Satellite Orbit (IGSO)satellites which are analo-gous to CAPS satellites,virtual CAPS satellite clocks data and satellite observation data are simulated based on BDS satellites data.The experiment to evaluate the accuracy is carried on based on the positioning principle of CAPS.The numerical example shows that the positioning precision at the user station can reach about 2 m on plane and better than 3 m on elevation when uti-lizing 5 GEO and 1 IGSO satellites.When utilizing 5 GEO and 5 IGSO satellites,it can reach about 0.1 m on plane and eleva-tion.The simulate results validate the positioning precision and performance of CAPS.