测量雷达的实时测角新方法

A NOVEL REAL-TIME ANGLE ESTIMATION METHOD FOR MEASUREMENT RADAR

现代的测量雷达通常要对目标进行实时跟踪,因此必须实时、准确地估计出目标方位。该文针对测量雷达的特殊情况,利用高分辨DOA估计理论,提出了一种新的实时测角方法。和传统的基于比相原理的FFT法相比,在计算量基本保持不变的情况下,新方法在低信噪比时具有好得多的估计效果。

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 DO A 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.