基于漏波天线的分布式微波辐射计

doi:10.12305/j.issn.1001-506X.2022.07.07

系统工程与电子技术 ›› 2022, Vol. 44 ›› Issue (7): 2125-2133.doi: 10.12305/j.issn.1001-506X.2022.07.07

基于漏波天线的分布式微波辐射计

李鹏飞, 卢海梁*, 韩涛, 党鹏举, 李一楠, 李浩, 吕容川

中国航天科技集团公司第五研究院西安分院, 陕西西安 710100

收稿日期:2021-05-31 出版日期:2022-06-22 发布日期:2022-06-28
通讯作者: 卢海梁
作者简介:李鹏飞(1989—), 男, 工程师, 硕士, 主要研究方向为被动微波遥感、无源探测、微波辐射计定标|卢海梁(1986—), 男, 高级工程师, 博士, 主要研究方向为被动微波辐射无源探测、被动微波遥感、射频干扰检测|韩涛(1980—), 男, 高级工程师, 硕士, 主要研究方向为高速数字采集、数字相关、数字信号处理|党鹏举(1988—), 男, 工程师, 硕士, 主要研究方向为全极化微波辐射计定标、被动遥感|李一楠(1985—), 男, 高级工程师, 博士研究生, 主要研究方向为被动微波遥感、综合孔径微波辐射计系统设计|李浩(1980—), 男, 研究员, 博士研究生, 主要研究方向为全极化微波辐射计、综合孔径微波辐射计系统设计|吕容川(1983—), 女, 研究员, 博士研究生, 主要研究方向为全极化微波辐射计、被动微波遥感、大气探测
基金资助:
国家自然科学基金(41706204);钱学森青年创新基金(QXSCXJJ2017-504);中国空间技术研究院西安分院自主研发项目(Y17-KJCX-04)

Distributed microwave radiometer based on leaky wave antenna

Pengfei LI, Hailiang LU*, Tao HAN, Pengju DANG, Yinan LI, Hao LI, Rongchuan LYU

China Academy of Space Technology, Xi'an 710100, China

Received:2021-05-31 Online:2022-06-22 Published:2022-06-28
Contact: Hailiang LU

摘要/Abstract

摘要：

为了缓解传统实孔径微波辐射计中性能指标与体积、重量间的矛盾, 解决综合孔径微波辐射计中高空间分辨率以系统结构、信号处理复杂度高为代价的难题, 提出了一种基于漏波天线的分布式微波辐射计系统。首先, 介绍了系统总体方案, 包括漏波天线和接收机方案; 其次, 详细分析了系统的关键指标——角分辨率和系统灵敏度, 并介绍了定标方案; 最后, 对系统进行建模并仿真分析。结果表明, 所设计的系统结构简单、复杂度较低、信号处理简单; 通过对系统进行建模仿真, 反演出的亮温值和真实亮温值误差很小。该系统可以作为一种新型的微波辐射计系统重点发展。

关键词: 漏波天线, 分布式, 微波辐射计

Abstract:

In order to alleviate the contradiction between the performance and the volume and weight of the traditional real aperture microwave radiometer, and also to solve the problem that high spatial resolution is at the lost of systematic structure and signal processing complexity in the synthetic aperture microwave radiometer, a distributed microwave radiometer system is proposed based on the leaky wave antenna. First, the scheme about the system is introduced, including the leaky wave antenna and the receiver scheme. Second, the key specifications of the system such as angular resolution and system sensitivity are analyzed in detail, and the calibration scheme is also introduced. Finally, the system proposed is examined through modeling and simulation analysis. The results show that the system has a simple structure, a low complexity, and a simple signal processing, and the errors between the brightness temperature and the real brightness temperature prove to be very small through modeling and simulation analysis. In conclusion, the system has a potential to be developed as a new type of microwave radiometer system.

Key words: leaky wave antenna, distributed, microwave radiometer

中图分类号:

TN82

李鹏飞, 卢海梁, 韩涛, 党鹏举, 李一楠, 李浩, 吕容川. 基于漏波天线的分布式微波辐射计[J]. 系统工程与电子技术, 2022, 44(7): 2125-2133.

Pengfei LI, Hailiang LU, Tao HAN, Pengju DANG, Yinan LI, Hao LI, Rongchuan LYU. Distributed microwave radiometer based on leaky wave antenna[J]. Systems Engineering and Electronics, 2022, 44(7): 2125-2133.

图/表 18

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基于漏波天线的分布式微波辐射计

Distributed microwave radiometer based on leaky wave antenna

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参考文献 31

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性能指标	方案1	方案2	方案3
硬件复杂度	简单	较复杂	简单
信号复杂度	简单	适中	较难
工程实现难度	简单	简单	较难
系统灵敏度	低	高	高

性能指标	基于漏波天线的分布式微波辐射计	实孔径微波辐射计	综合孔径微波辐射计
天线尺寸	大	大	小
系统结构复杂度	适中	较低	较高
信号处理复杂度	较复杂	简单	复杂
工程实现难度	适中	简单	较难
造价成本	低	低	高
重量	低	高	较高
体积	低	高	较高
功耗	较低	低	高
可靠性	高	低	高