| 摘要: |
| 单脉冲测角技术原理简单且易于工程实现，被广泛应用于各类雷达系统中，但在近主瓣干扰环境下，采用常规自适应波束形成技术会导致单脉冲鉴角曲线产生畸变，严重影响雷达测角性能。针对此问题，本文提出一种适于二维面阵的约束自适应单脉冲测角方法，将多约束自适应方向图保形技术与广义单脉冲测角技术相结合，实现干扰环境下的目标角误差估计。仿真实验表明，该方法能够在抑制近主瓣干扰的同时，基本保持理想单脉冲鉴角曲线，大幅提升雷达在未知干扰环境下的角误差估计性能，从而实现目标稳定跟踪。 |
| 关键词: 单脉冲测角 近主瓣干扰 自适应波束形成 广义单脉冲测角 |
| DOI：DOI:10.3969/j.issn.1672-2337.2019.06.011 |
| 分类号:TN957；TN958 |
| 基金项目: |
|
| Constrained Adaptive Monopulse Estimation for Planar Arrays |
|
ZHOU Rong，ZHANG Guanglei，MO Xiuci
|
|
AVIC Leihua Electronic Technology Research Institute，Wuxi 214063，China
|
| Abstract: |
| Monopulse is an established technique for radar systems for precision angle estimation. It is widely used because of its simple principle and convenient implementation. However，in presence of the near mainlobe jamming，the typical adaptive digital beamforming leads to a severe distortion of monopulse response curve，which results in the failure of target angle estimation.In this paper，to solve this problem，a novel constrained adaptive monopulse angle estimation algorithm for planar arrays is proposed. The adaptive pattern control technique with multipoint constraint and the generalized monopulse technique are used for angular estimation under interference environment. With the new method，near mainlobe jamming can be countered effectively and angle estimation accuracy can be guaranteed. Simulation results are used to validate the effectiveness of the new method. |
| Key words: monopulse estimation near mainlobe jamming adaptive beamforming generalized monopulse |
