基于PM算法的涡旋电磁波引信超分辨测向方法

孙丽华; 闫晓鹏; 刘强; 郝新红; 章鸿运

doi:10.13700/j.bh.1001-5965.2021.0020

基于PM算法的涡旋电磁波引信超分辨测向方法

doi: 10.13700/j.bh.1001-5965.2021.0020

1.
北京理工大学机电动态控制重点实验室, 北京 100081
2.
中国兵器科学研究院, 北京 100089

基金项目:

国家自然科学基金 61973037

国家自然科学基金 61871414

详细信息

通讯作者:
闫晓鹏, E-mail: yanxiaopeng@bit.edu.cn

中图分类号: TJ43⁺4.1
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- 文章访问数: 269
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- PDF下载量: 33
- 被引次数: 0
出版历程
- 收稿日期: 2021-01-14
- 录用日期: 2021-02-22
- 网络出版日期: 2021-03-09
- 整期出版日期: 2022-07-20

PM based super-resolution method of azimuth detection for electromagnetic vortex wave fuze

1.
Science and Technology on Electromechanical Dynamic Control Laboratory, Beijing Institute of Technology, Beijing 100081, China
2.
Ordnance Science Institute of China, Beijing 100089, China

Funds:

National Natural Science Foundation of China 61973037

National Natural Science Foundation of China 61871414

More Information

Corresponding author: YAN Xiaopeng, E-mail: yanxiaopeng@bit.edu.cn

摘要

摘要:
为提高防空导弹无线电引信在低信噪比（SNR）背景下的测向精度，提出了基于传播算子算法（PM）的涡旋电磁波引信超分辨测向方法。通过相控均匀圆阵依次发射不同轨道角动量模态涡旋电磁波照射目标，基于多发单收（MISO）模型推导目标探测回波模型；通过对回波方程的近似变形构造接收信号矩阵；采用PM算法构造空间谱函数，进行谱峰搜索，实现对目标水平方位角的估计。对所提方法的有效性进行仿真验证，结果表明，所提方法可在低信噪比、少阵元情况下实现对目标的精确测向。
- 涡旋电磁波 /
- 轨道角动量 /
- 引信测向 /
- 多发单收(MISO) /
- 传播算子算法(PM)
Abstract:
To improve the azimuth detection accuracy of air defense missile radio fuze at low signal-to-noise ratio (SNR) background, a super-resolution method of azimuth detection for electromagnetic vortex wave fuze based on propagator method (PM) is proposed. Vortex electromagnetic waves with different orbital angular momentum modes are sequentially emitted to irradiate the target by a phase-controlled uniform circular array, and the target echo mathematical model is derived based on the multiple-input single-output (MISO) model. The received signal matrix is constructed through the approximate deformation of the echo equation. Then, PM is used to construct the spatial spectrum function, and spectral peak searching is performed to estimate the target azimuth. The effectiveness of the proposed method is verified by simulation. Results show that the proposed method can accurately detect the azimuth of a target in the case of low SNR and few elements.
- electromagnetic vortex wave /
- orbital angular momentum /
- azimuth detection of fuze /
- multiple-input single-output (MISO) /
- propagator method (PM)

HTML全文

图 1 基于MISO的涡旋电磁波引信探测几何模型

Figure 1. MISO-based geometry model of vortex electromagnetic wave fuze detection

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图 2 阵列发射信号

Figure 2. Array emission signal

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图 3 算法复杂度与模态数的关系

Figure 3. Relation between algorithm complexity and mode number

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图 4 PM算法水平方位角估计结果

Figure 4. Results of horizontal azimuth estimation of PM algorithm

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图 5 不同信噪比下各算法对水平方位角估计性能对比

Figure 5. Comparison of horizontal azimuth estimation performance of different algorithms at different SNRs

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图 6 不同阵元数下不同算法水平方位角估计性能对比

Figure 6. Comparison of horizontal azimuth estimation performance of different algorithms with different numbers of array elements

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