利用频谱分析确定空间目标太阳翼定向模式

Identify Space Target Solar Wing Orientation Mode by Frequency Analysis

分析对比了空间目标与可控飞行器轨道确定的不同,论述了太阳翼定向模式的不同对轨道运动特性的影响。通过地面站的测距与测角数据,推算出测量数据的地心距频谱。假定一种太阳翼定向模式,利用测量数据进行轨道确定,利用定轨数据计算地心距频谱并与测量数据的频谱比对,由此可确定太阳翼定向模式。利用数值仿真对近地太阳同步轨道和地球静止轨道两种情况进行了验证,仿真结果表明该思路和方法是有效的。

The orbit determination difference between space target and controllable vehicle are compared and analyzed, the solar wing orientation mode and it＇s influence to orbit is discussed. The Fourier transform of distance from space target to center of earth is chosen as key parameter if the earth station orbit measure data is limited on distance, azimuth and elevation. The calculation step is given to identify the space target solar wing orientation mode. Two case is simulated and the feasibility is verified for near earth sun synchronize orbit and geostationary orbit.