一种改进的U⁃V空间测角方法  

An Improved Method for Angle Measurement Based on U⁃V Space

作　　者：张孟达[1,2] 余颖菲 ZHANG Mengda;YU Yingfei(The 38th Research Institute of China Electronics Technology Group Corporation,Hefei 230088,China;Key Laboratory of Aperture Array and Space Application,Hefei 230088,China)

机构地区：[1]中国电子科技集团公司第三十八研究所,安徽合肥230088 [2]孔径阵列与空间探测安徽省重点实验室,安徽合肥230088

出　　处：《雷达科学与技术》2023年第4期400-404,共5页Radar Science and Technology

摘　　要：两维相控阵雷达通常采用单脉冲和差波束测角实现对目标角度的测量和跟踪。对于矩形阵列,通常在U⁃V空间下对不同频率进行归一化,只需在方位和俯仰向各建立一条误差曲线即可完成单脉冲测角,减少了运算量和存储空间。本文针对圆形阵列无法仅用方位和俯仰各一条误差曲线进行测角的缺点,提出了一种改进的U⁃V空间和差波束测角曲线的建立和使用方法。该方法采用多条测角曲线迭代逼近的思想,实现简单、运算量小,能够提高角度的测量精度。仿真结果验证了该方法的可行性和有效性。Monopulse sum⁃difference beam angle measurement is used in two⁃dimensional phased array radar to detect and track the target.For rectangular array,a U⁃V space⁃based angle measurement method is available.It is only required to establish one error curve in azimuth and elevation respectively.But for circular array,this angle measure⁃ment method cannot be used.In order to solve this problem,an improved method by establishing and using the sum⁃dif⁃ference beam error curve based on U⁃V space is proposed in this paper.This method adopts the idea of multiple angle measurement curve iterative approximation,which is easy to implement,has a small amount of calculation,and can im⁃prove angle measurement accuracy.Feasibility and effectiveness of the method have been verified through the simula⁃tion results.

关 键 词：U⁃V空间 圆形阵列 和差波束 单脉冲测角 

分 类 号：TN958.92[电子电信—信号与信息处理] TN957.5[电子电信—信息与通信工程]