空间激光干涉引力波探测器轨道修正方法

Aimed at the orbit correction problem of space-based laser interferometric gravitational wave detector, a spacecraft orbit correction method based on virtual formation configuration design is proposed. The detector is composed of three spacecraft forming an equilateral triangle configuration. The configuration of the detector is unstable due to the orbit error and perturbation. It is assumed that an ideal spacecraft is running in nominal orbit, and the real spacecraft in actual orbit forms a virtual formation with the ideal spacecraft. The three spacecraft of detector form three virtual formations with their ideal spacecraft. Considering the stability requirement of detector configuration and the effect of perturbation, the configuration of the virtual formation is designed to solve the correction value of mean orbital elements of spacecraft. The orbit correction value is less than the orbit deviation value, and orbit correction is realized by four-pulse control. The numerical simulation results show that the method meets the stability requirements of the detector configuration through partial orbit correction, and has the potential to reduce fuel consumption and prolong mission life.