【作者】 李晖； 张钦宇； 张乃通； 许洪光； 张岩；

【Author】 Li Hui, Zhang Qinyu, Zhang Naitong, Xu Hongguang, Zhang Yan (Shenzhen Graduate School of Harbin Institute of Technology, Shenzhen China, 518055)

【机构】 深圳研究生院哈尔滨工业大学；

【摘要】 应用地球静止轨道的两个编队飞行卫星群构成天基的深空探测导航系统,可以全天候连续为深空探测器导航。编队飞行卫星群多颗卫星协同工作,应用多站反向导航定位原理, 根据下行链路信号到达的时差和频差,获得高精度的导航精度。提高系统授时精度和载频精度, 或者适当增加测量基线长度,有利于提高导航精度,减小导航定位误差。该系统可获得与NASA 甚长基线干涉测量系统相近的导航精度。更多还原

【Abstract】 Two clusters of formation flying satellites with a relative angle on geosynchronous earth orbit were used to construct a space-based continuous navigation system for deep space exploration. Adopting technique of passive navigation by multiple base-station, formation flying satellites obtained high precision of navigation according to time and frequency difference of arrival of downlink signal from deep space explorer. Enhancing system timing and carrier frequency, and increasing the length of baselines help to improve precision of navigation. The precision of this navigation system is close to that of NASA’s VLBI system.更多还原