摘要
给出了物体作近圆椭圆轨道运动的近似运动学方程,并结合GRACE重力卫星的轨道参数,在没有考虑摄动效应的前提下,计算了双星的距离、相对速度以及双星连线的倾角,并讨论了这些量对K波段测距系统的影响。同时分析表明,2倍轨道频率的效应可望用于K波段测距和测速的在轨性能检验,这对于K波段研究具有一定指导意义。
An approximate kinetic equation describing an object following a near-circular ellipse trajectory is given in this paper. Based on the orbit parameter of the GRACE satellites and under the condition that no consideration was given to the disturbance acting on the satellites, the authors calculated the distance, the relative velocity, and the inclination of the link of the twin satellites, and analyzed their influence on the K-band ranging system. Theoretical analysis shows that the double frequency effect of the ellipse orbit could help to test the distance and velocity measurement of the K-band ranging system in orbit, which is of significance in the research and development of the K-band ranging system.
出处
《物探与化探》
CAS
CSCD
2008年第4期383-387,共5页
Geophysical and Geochemical Exploration
关键词
重力卫星
低低卫-卫跟踪
离心率
K波段测距
gravity satellite, satellite-to-satellite tracking in low-low （SST-II）
eccentricity
K-band ranging system
