一种基于波束增益差的两坐标雷达估高方法

A Height Estimation Approach of 2D Radar Based on Beam Gain Difference

两坐标雷达只能提供探测目标的距离、方位信息,不能获取目标的高度或俯仰信息。为了估算目标的高度,提出了一种基于波束增益差的两坐标雷达估高方法,根据雷达天线的"仰角-增益"测试数据,利用目标点迹属性中的高低波束增益差,求出目标的仰角,进而估算目标的高度信息;同时采用加权平均值的方法平滑目标的估高值。该方法简单实用,方便工程实现,实验中通过与目标二次雷达的高度信息的对比,以验证该方法的有效性。

2Dradars can only provide the distance and azimuth information of target,not provide the height or elevation information of target.For estimating the height of target,this paper presents a height estimation method for 2Dradar based on beam gain difference,according to the ＂ elevation gain＂ test data of radar antenna,calculates the target elevation by using high and low beam gain difference of target point properties and estimates the height information of targets,at the same time uses the weighted average method to smooth the height estimation value of target.The algorithm is simple and applicable,and easy to be realized in engineering.The experiment validates the validity of the method through comparing the height estimation with the second survellance radar（SSR）height information of target.