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本文介绍了一种以低仰角跟踪目标的新雷达技术。关键技术是在仰角上利用两个天线波束来接收由目标及其镜象回波组成的信号,并根据两个波束输出之间的相位差计算目标高度。文中对该技术的算法作了误差分析和推导。为了确定反射系数为1.0和0.6的平坦地面上方的目标高度,进行了计算机模拟。结果证明了该技术的算法的有效性。本文还介绍了与其它技术的比较情况。
This article describes a new radar technology that tracks targets at low elevation angles. The key technique is to use two antenna beams at elevation to receive the signal composed of the target and its image echo and calculate the target height based on the phase difference between the two beam outputs. The article made an error analysis and deduction of the algorithm of the technology. In order to determine the target height above the flat ground with reflection coefficients of 1.0 and 0.6, computer simulations were performed. The results demonstrate the effectiveness of the algorithm of this technique. This article also describes the comparison with other technologies.