线性调频-捷变频对三元组目标定位精度的影响

在射频仿真系统中，精确的目标角位置通过“三元组”幅相控制实现，幅相控制误差直接影响阵列上目标位置的模拟精度。当工作频率发生变化时，受阵列系统瞬时带宽的限制，目标阵列角位置的模拟精度将发生变化。本文从目标阵列的角位置模拟原理出发，分析了线性调频和频率捷变引起的通路幅度和相位误差对三元组目标定位精度的影响，为研究线性调频和捷变频状态下的目标定位控制提供了一定的依据。

The effects of linear frequency modulation and agility on positioning precision of three-element targets

The accurate angle positions of targets are implemented by the three-element amplitude and phase control, whose errors directly affect the simulated precision of target positions on arrays in the RFSS. With the limitation of the instantaneous bandwidth of the array system, the simulated precision of angle positions of target arrays changes with working frequencies. Based on the principle of the simulation of angle positions, the effects of amplitude and phase errors in channels caused by the linear frequency modulation and agility on the positioning precision of three-element targets are analyzed, which provide the basis for the study of the target positioning control under the state of the frequency modulation and agility.