Automatic capturing and tracking method for spacecraft

The invention discloses an automatic capturing and tracking method for a spacecraft. The method comprises the steps of calculating a target blind area range of an antenna tracking spacecraft, and judging whether high-elevation-angle top crossing, high-elevation-angle top crossing entering and exiting conditions and target capturing and tracking conditions exist or not according to target orbit characteristics. By analyzing factors such as target track characteristics and antenna performance indexes, an antenna high-elevation-angle automatic top crossing mode and opportunities of entering and exiting high-elevation-angle top crossing can be reasonably set, so that antenna top crossing tracking blind areas are reduced as far as possible, target capture time is shortened, and automation level and benefit quality of spaceflight measurement and control tasks are improved. 本发明公开了一种航天器自动捕获跟踪方法，包括计算天线跟踪航天器目标盲区范围、根据目标轨道特性判断是否存在高仰角过顶、高仰角过顶进入及退出的条件、目标捕获跟踪条件。本发明通过分析目标轨道特性、天线性能指标等因素，能够合理设置天线高仰角自动过顶的方式以及进入、退出高仰角过顶的时机，以尽可能减