两种雷达波形的稳态跟踪性能分析

研究了单目标跟踪雷达的距离测量波形和距离、距离率联合测量波形的选择问题。选择了两种雷达波形,即用于距离测量的线性调频(LFM)脉冲波形和用于距离、距离率联合测量的上-下LFM脉冲对波形,然后分析了两种波形的测量精度。根据两种波形对应的测量方程,分别给出了其对应的卡尔曼滤波的稳态解的表达式,由此建立起了两种波形对应的稳态跟踪性能与雷达参数、雷达测量模式、目标运动和散射特性、雷达-目标距离等的函数关系。在相同的雷达参数、雷达测量模式、目标运动和散射特性的情况下,提出以标量化后的稳态跟踪性能为准则选择不同距离上的波形,最后进行了数值实验。

Analysis of Steady Tracking Performance for Two Radar Waveforms

Radar waveform selection between a waveform for ranging and a waveform for ranging and range-rate data is studied.A LFM pulse for ranging and a up-down LFM pulse-pairs for ranging and range-rate date are considered and their measure accuracy are analyzed.Steady state solutions for the Kalman filters are given separately according to the measure equation determined by the two waveforms,and steady state tracking performance is a function of radar parameters,radar measure pattern,target motion characteristics and target scatter characteristics,and radical range.Under the conditions of same radar parameters,radar measure pattern,target motion characteristics and target scatter characteristics,scaled steady state tracking performance is chosen as a criterion for waveform selection in different range,and finally numerical experiments is made.