| 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。 |
| 关键词: U⁃V空间 圆形阵列 和差波束 单脉冲测角 |
| DOI：DOI:10.3969/j.issn.1672-2337.2023.04.006 |
| 分类号:TN958.92；TN957.5 |
| 基金项目: |
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| An Improved Method for Angle Measurement Based on U⁃V Space |
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ZHANG Mengda, YU Yingfei
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1. The 38th Research Institute of China Electronics Technology Group Corporation, Hefei 230088, China;2. Key Laboratory of Aperture Array and Space Application, Hefei 230088, China
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| Abstract: |
| 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 measurement method cannot be used. In order to solve this problem, an improved method by establishing and using the sum?difference 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 improve angle measurement accuracy. Feasibility and effectiveness of the method have been verified through the simulation results. |
| Key words: U⁃V space circular array sum⁃difference beam monopulse angle measurement |
