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METHOD AND SYSTEM FOR ESTIMATING THE DIRECTION OF A TRANSFER SATELLITE SATELLITE FROM AN INITIAL ORBIT TO A MISSION ORBIT

机译:估算从初始轨道到发射轨道的转移卫星方向的方法和系统

摘要

The present invention relates to a method (50) for estimating a direction of a satellite (20) in the transfer phase, said direction of said satellite being estimated with respect to a measurement antenna (30) by executing a plurality of steps (52) of measuring the power of reception, by said measuring antenna, of a target signal emitted by said satellite (20), for different pointing directions of said measuring antenna. In addition, since the target signal comprises a substantially sinusoidal component, referred to as a "single-frequency component", each power measurement step (52) comprises a frequency-domain transposition of a digital signal obtained from a signal provided. by the measuring antenna (30), so as to obtain a frequency spectrum of said digital signal over a predetermined frequency band comprising said single-frequency component, and the power measurement for the pointing direction considered is determined from a maximum value of the frequency spectrum.
机译:本发明涉及一种在传送阶段中估计卫星(20)的方向的方法(50),通过执​​行多个步骤(52),相对于测量天线(30)估计所述卫星的所述方向。所述测量天线针对所述测量天线的不同指向方向测量由所述卫星(20)发射的目标信号的接收功率的示意图。另外,由于目标信号包括基本上为正弦的分量,称为“单频分量”,所以每个功率测量步骤(52)包括从提供的信号获得的数字信号的频域转置。通过测量天线(30),在包括所述单频分量的预定频带上获得所述数字信号的频谱,并根据频谱的最大值确定所考虑的指向方向的功率测量。

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