脉冲重复频率(PRF)是天基雷达系统设计中最重要的参数之一。针对天基雷达对空间目标(卫星、空间站等)观测时面临的星下点回波、脉冲遮挡以及地面杂波等问题,提出了一种多约束条件下的斑马图设计方法。根据空间目标轨道分布状况,构建了典型的天基雷达轨道和载荷参数,在传统斑马图设计的基础上,引入了地面杂波的约束条件,并实现了对地面杂波的规避。仿真分析了目标轨道高度和地面杂波对斑马图的影响,仿真结果验证了采用天基雷达对空间目标进行常态化观测的可行性,同时为该情景下的PRF设计提供了参考。

Pulse repetition frequency (PRF) is one of the most important parameters in the design of space-based radar systems. Aiming at the problems of space-based targets (satellite, space station, etc.), such as the submarine point echo, pulse occlusion and ground clutter, a method of coverage diagram design under multiple constraints are proposed. According to the orbit distribution of space targets, the typical space-based radar orbit and load parameters are constructed. Based on the traditional coverage diagram design, the constraints of ground clutter are introduced and the evasion is realized. The effects of target orbital height and ground clutter on the coverage diagram are simulated. The simulation results verify the feasibility of normalized observation to the space target using space-based radar, and provide a reference for PRF design.

TN959.74