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针对航天测控站天线快速扫描需求与天线机械结构动态性能较低之间的矛盾,设计了天线方位、俯仰角速度正弦变化条件下合成圆周扫描和螺旋扫描轨迹算法,提出了结合目标运动特性选择扫描方式的原则,举例说明了扫描参数计算方法。计算和仿真结果表明,利用所提方法可以将天线加速度控制在天线设计指标以内,目标捕获概率可控。该扫描参数计算方法已经部分应用于我国探月工程。
Aiming at the conflict between the rapid scanning requirements of aerospace control station antenna and the low dynamic performance of the antenna mechanical structure, a synthetic circular scanning and helical scanning trajectory algorithm under the sinusoidal variation of antenna azimuth and pitch angular velocity is proposed. A scanning method combining with target motion characteristics selection is proposed The principle of scanning parameter calculation is illustrated. The calculation and simulation results show that the proposed method can control the antenna acceleration within the antenna design index and the target acquisition probability can be controlled. The calculation method of scanning parameters has been partially applied to lunar exploration in China.