基于数据融合的分布式综合孔径微波辐射高分辨率成像算法

doi:10.12305/j.issn.1001-506X.2022.08.03

系统工程与电子技术 ›› 2022, Vol. 44 ›› Issue (8): 2403-2409.doi: 10.12305/j.issn.1001-506X.2022.08.03

基于数据融合的分布式综合孔径微波辐射高分辨率成像算法

胡泰洋¹, 张晋宇¹, 卢海梁^2,*, 李鹏飞², 李一楠², 吕容川²

1. 南京理工大学电子工程与光电技术学院, 江苏南京 210094
2. 中国空间技术研究院西安分院, 陕西西安 710100

收稿日期:2021-09-24 出版日期:2022-08-01 发布日期:2022-08-24
通讯作者: 卢海梁
作者简介:胡泰洋(1983—), 男, 副研究员, 博士, 主要研究方向为微波毫米波辐射测量技术|张晋宇(1996—), 男, 博士研究生, 主要研究方向为微波毫米波辐射成像算法|卢海梁(1986—), 男, 高级工程师, 博士, 主要研究方向为微波无源探测技术|李鹏飞(1989—), 男, 工程师, 硕士, 主要研究方向为被动微波遥感技术|李一楠(1985—), 男, 研究员, 硕士, 主要研究方向为被动微波遥感技术|吕容川(1983—), 女, 研究员, 硕士, 主要研究方向为全极化微波辐射计技术
基金资助:
钱学森青年创新基金(QXSCXJJ2017-504)

Distributed synthetic aperture microwave radiometric high-resolution imaging algorithm based on data fusion

Taiyang HU¹, Jinyu ZHANG¹, Hailiang LU^2,*, Pengfei LI², Yinan LI², Rongchuan LYU²

1. School of Electronic and Optical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
2. China Academy of Space Technology (Xi'an), Xi'an 710100, China

Received:2021-09-24 Online:2022-08-01 Published:2022-08-24
Contact: Hailiang LU

摘要/Abstract

摘要：

为了解决大型综合孔径微波辐射计系统随着分辨率需求的提高, 天线规模和系统复杂度随之增加的难题, 提出了一种基于数据融合的分布式综合孔径微波辐射计成像算法。首先建立了数据融合模型, 其次详细地介绍了数据融合算法, 最后开展了地面验证实验, 并对实验结果进行处理。理论和实验结果均表明: 该数据融合算法是可行的, 能有效提高系统图像的分辨率; 同时为后续被动微波遥感从数据维角度提高空间分辨率提供了一种新的解决方法。

关键词: 数据融合, 分布式, 综合孔径, 微波辐射计, 高分辨率成像

Abstract:

In view of the problem that both the antenna array and system complexity of large distributed synthetic microwave radiometer system increase with the improvement of imaging resolution, an imaging algorithm based on data fusion for synthetic aperture microwave radiometer with high-resolution is proposed. Firstly, the data fusion model is established. And then the data fusion algorithm is discussed in detail. Finally, a series of ground validation imaging tests are carried out and some imaging results are presented. Both the theoretical and experimental results demonstrate that the proposed algorithm is feasible and can effectively improve the imaging resolution. Moreover, it provides a new solution for enhancing the spatial resolution of microwave radiometric remote sensing from the perspective of data dimension.

Key words: data fusion, distributed, synthetic aperture, microwave radiometer, high-resolution imaging

中图分类号:

TP732.1

胡泰洋, 张晋宇, 卢海梁, 李鹏飞, 李一楠, 吕容川. 基于数据融合的分布式综合孔径微波辐射高分辨率成像算法[J]. 系统工程与电子技术, 2022, 44(8): 2403-2409.

Taiyang HU, Jinyu ZHANG, Hailiang LU, Pengfei LI, Yinan LI, Rongchuan LYU. Distributed synthetic aperture microwave radiometric high-resolution imaging algorithm based on data fusion[J]. Systems Engineering and Electronics, 2022, 44(8): 2403-2409.

图/表 9

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参数	指标
工作体制	直接检波单通道
工作频率/GHz	94
系统带宽/GHz	2
天线口径/mm	300
3 dB波束宽度/(°)	0.8
方位扫描范围/(°)	-170~+170
俯仰扫描范围/(°)	-40~+90

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基于数据融合的分布式综合孔径微波辐射高分辨率成像算法

Distributed synthetic aperture microwave radiometric high-resolution imaging algorithm based on data fusion

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