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论文:2023,Vol:41,Issue(2):379-388 |
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引用本文： |
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程宇峰, 李勇, 陈峰峰, 邓晓波, 程伟. 基于三维交叉波束的降维双基杂波抑制技术[J]. 西北工业大学学报 |
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CHENG Yufeng, LI Yong, CHEN Fengfeng, DENG Xiaobo, CHENG Wei. Dimensionality reduction bistatic radar clutter suppression technique based on three-dimensional cross-beam[J]. Journal of Northwestern Polytechnical University |
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| 基于三维交叉波束的降维双基杂波抑制技术 |
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| 程宇峰1, 李勇1, 陈峰峰2, 邓晓波2, 程伟1 |
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1. 西北工业大学 电子信息学院, 陕西 西安 710072;
2. 中国航空工业集团公司雷华电子技术研究所, 江苏 无锡 214063 |
| 摘要: |
| 针对机载双基雷达杂波非平稳性导致传统杂波抑制算法性能下降的问题,对机载双基杂波进行建模,在此基础上,分析了4种典型作战场景下的双基杂波特性。为降低STAP算法的计算量,提出一种三维交叉波束杂波抑制算法。该算法采用变换矩阵将空时二维数据转换为方位-俯仰-多普勒三维数据,剔除辅助波束杂波数据,只保留对双基杂波抑制起主要作用的主波束杂波数据,形成三维交叉波束进行局部自适应杂波抑制,在大幅降低算法计算量与训练样本需求量的同时尽量保证杂波抑制性能不下降。通过分析多种算法在典型作战场景下的杂波抑制效果与计算量,验证了所提算法有效性。所提算法在机载双基以及非平稳杂波抑制方面的应用潜力巨大。 |
| 关键词:
双基杂波
杂波抑制
三维交叉波束
降维算法
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| Dimensionality reduction bistatic radar clutter suppression technique based on three-dimensional cross-beam |
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| CHENG Yufeng1, LI Yong1, CHEN Fengfeng2, DENG Xiaobo2, CHENG Wei1 |
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1. School of Electronics and Information, Northwestern Polytechnical University, Xi'an 710072, China;
2. AVIC Leihua Electronic Technology Institute, Wuxi 214063, China |
| Abstract: |
| Aiming at the problem that the non-stationary of airborne bistatic radar clutter reduces the performance of traditional clutter suppression algorithm, this paper first formulates airborne bistatic radar clutter model, and then analyzes the bistatic radar clutter characteristics in four typical combat scenarios. In addition, in order to reduce the computation burden of the STAP algorithm, a three-dimensional cross-beam clutter suppression algorithm is proposed, which uses the transformation matrix to convert the space-time two-dimensional data into azimuth-elevation-Doppler three-dimensional data. By eliminating auxiliary beam clutter data, only the main beam clutter data which plays a major role in dual-basis clutter suppression is retained to form a three-dimensional cross-beam for local adaptive clutter suppression. The proposed algorithm can greatly reduce the amount of calculation and the demand of training samples, while trying to ensure that the clutter suppression performance does not degrade. The effectiveness of the proposed algorithm is verified by analyzing the clutter suppression effect and computation amount of various algorithms in typical combat scenarios. Therefore, the algorithm has great potential in the applications of airborne bistatic and non-stationary clutter suppression. |
| Key words:
bistatic radar clutter
clutter suppression
three-dimensional cross-beam
dimensionality reduction algorithm
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| 收稿日期: 2022-06-26
修回日期:
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| DOI: 10.1051/jnwpu/20234120379 |
| 基金项目: 中央高校基本科研业务费(3102019ZX015)资助 |
| 通讯作者: 李勇(1962-),西北工业大学教授,主要从事雷达信号处理研究。e-mail:pupil_119@nwpu.edu.cn
Email：pupil_119@nwpu.edu.cn |
| 作者简介: 程宇峰(1973-),西北工业大学博士研究生,主要从事协同探测雷达信号处理、智能化雷达研究。
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| 作者相关文章 |
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| 程宇峰 在本刊中的所有文章 |
| 李勇 在本刊中的所有文章 |
| 陈峰峰 在本刊中的所有文章 |
| 邓晓波 在本刊中的所有文章 |
| 程伟 在本刊中的所有文章 |
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