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通过对LEO-LEO掩星事件仿真,分析卫星轨道参数对掩星事件持续时间和卫星间相对角速度的影响.结果表明:对掩星事件持续时间影响较大的LEO-LEO卫星轨道参数依次为轨道倾角、升交点赤经、轨道高度,近地点角距对掩星事件持续时间影响不大;LEO-LEO卫星轨道倾角互补时,掩星事件持续时间最短,为98 s;两颗LEO卫星轨道倾角之和或者升交点赤经之差在120°-240°范围内,掩星持续时间约100~150s;两颗LEO卫星轨道越高,掩星持续时间越短;掩星发生时,LEO卫星间水平方向相对角速度最大值约为0.14(°)·s~(-1),俯仰方向相对角速度最大值约为0.078(°)·s~(-1).
The LEO-LEO occultation events were simulated and the influence of orbital parameters on the duration of occultation events and the relative angular velocities between satellites was analyzed.The results show that the LEO-LEO satellite orbital parameters that have a great influence on the duration of occultation events are as follows: The LEO-LEO satellite orbital inclination has the shortest duration of occultation events, which is 98 s; the LEO-LEO satellite orbital inclination And the ascending or descending point in the range of 120 ° -240 °. The occultation duration is about 100-150 s. The higher the orbits of two LEO satellites, the shorter the duration of the occultation. When the occultation occurs, the LEO satellite level The maximum value of the relative angular velocity is about 0.14 (°) · s -1, and the maximum value of the relative angular velocity in the pitch direction is about 0.078 (°) · s -1.