改进类单脉冲测角算法

Improved Monopulse-like Algorithm

快速动目标截获中角度截获是一个关键问题,类单脉冲方法是进行角度截获的一个简单而有效的方法。可是该方法用于角度测量时存在旁瓣干扰问题,对此,文中就旁瓣抑制问题讨论窗函数对角度测量的影响,对类单脉冲算法作改进,提出一种旁瓣抑制的软实现方法—设置回波录取门限,以提高测角精度。

Angle acquisition is a key-problem of the swift target acquisition in array radar. The monopulse-like algorithm is simple and effective in use of angle acquisition. But the interference of sidelobe still exists. To solve this problem, the effect of windowed antenna to angle acquisition is discussed. A method to constrain sidelobe and to improve the precise of angle measurement is rendered-setting a threshold of echo wave. At the end of the paper, the improved monopulse-like algorithm is tested in a simulation system for array radar.