关键词: 空间目标, 连续覆盖, 星座设计, 圆环形探测区域, 参数优化

Abstract:

To meet the requirements of multi-fold continuous-coverage of space targets， a design method of even-fold continuous-coverage constellation based on the large angle detection range is proposed. Firstly， the ring detection area is determined by the large angle detection range， and a design method of the street of coverage is proposed. Then， a method of even-fold continuous-coverage constellation design for space targets is proposed based on the method of street of coverage splicing. The proposed constellation design method has two advantages. First， it introduces a constrained parameter optimization method for the constellation design method based on street of coverage splicing， which can quickly design an even-fold continuous-coverage constellations with as few satellites as possible. Second， the sensor detection area is selected as a ring， which can expand the application range of the proposed constellation design method. When the sensor points to the sky， the designed constellation can achieve even-fold continuous-coverage of high， medium and low orbit space targets. When the sensor points to the ground， the proposed method is also suitable for even-fold continuous-coverage of ground targets at any latitude. Simulation results show that the proposed constellation design method is simple and effective， and can quickly achieve even-fold continuous-coverage of space or ground targets with fewer satellites.

Key words: space target, continuous coverage, constellation design, ring detection area, parameter optimization