測量雷達的實時測角新方法
A novel real-time-angle estimeation method for measurement radar
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摘要: 現(xiàn)代的測量雷達通常要對目標進行實時跟蹤,因此必須實時、準確地估計出目標方位。該文針對測量雷達的特殊情況,利用高分辨DOA估計理論,提出了一種新的實時測角方法。和傳統(tǒng)的基于比相原理的FFT法相比,在計算量基本保持不變的情況下,新方法在低信噪比時具有好得多的估計效果。Abstract: Modern measurement radars have to estimate the direction of the targets accurately in real time because they usually have to track the targets in real time. A novel real-time angle estimation method, which utilizes the theory of high-resolution DOA estimation and the special conditions of the measurement radar, is proposed in this paper. When compared with the conventional FFT method which is based on the principle of phase comparison, the two methods have almost equal computation cost, however, the new method has much better estimation accuracy when SNR is low.
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靳悅,靶場測速雷達實時角跟蹤系統(tǒng)研究,[碩士論文],長沙,國防科技大學,1994.[2]R. Roy, T. Kailath, ESPRIT-Estimation of signal parameters via rotational invariance techniques, IEEE Trans. on ASSP., 1989, ASSP-37(7), 984-995.[3]A.J. Weiss, M. Garish, Direction finding using ESPRIT with interpolated arrays, IEEE Trans.on SP., 1991, SP-39(6), 1473-1478.[4]B. Freidlander, A. J. Weiss, Direction finding using spatial smoothing with interpolated arrays,IEEE Trans. on AES., 1992, AES-28(2), 574-586. -
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