LFM波形跟踪中αβ-滤波器的瞬态响应

M. A. Murzova, V. E. Farber
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引用次数: 1

摘要

啁啾雷达使用线性调频(LFM)波形,由于信号中的距离-多普勒耦合而产生目标距离的偏置测量。LFM波形的距离-多普勒耦合既可以提高径向坐标下的跟踪精度,也可以降低跟踪精度。系统在非定常状态下的行为是必不可少的,例如,当它从一个运动物体跳到另一个运动物体时(坐标跳跃)。因此,采用脉冲响应的方法研究αβ-滤波器的瞬态响应。此外,还计算了具有交变距离-多普勒耦合系数的αβ-滤波器的稳定性边界。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
The Transient Response of αβ-Filter for Tracking with LFM Waveforms
Chirp radar uses linear frequency modulated (LFM) waveforms that produce biased measurements of target range due to the range-Doppler coupling in the signal. The range- Doppler coupling of LFM waveform can both improve and worsen the tracking accuracy in a radial coordinate. The system behavior in an unsteady state is essential, for example, when it jumps from one moving object to another (a coordinate jump). Therefore, the transient response of αβ-filter is studied by an impulse response. Moreover, the stability boundaries of αβ-filter with alternating range-Doppler coupling coefficient are evaluated.
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