System design and first airborne experiment of sparse microwave imaging radar: initial results

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• 作者：BingChen Zhang ; Zhe Zhang ; ChengLong Jiang ; Yao Zhao…
• 关键词：sparse microwave imaging ; synthetic aperture radar (SAR) ; compressive sensing ; displaced phase center antenna (DPCA) ; system design ; airborne experiment ; 绋€鐤忓井娉㈡垚鍍?/li> 鍚堟垚瀛斿緞闆疯揪 ; 鍘嬬缉鎰熺煡 ; 鍋忕疆鐩镐綅涓績澶╃嚎 ; 绯荤粺璁捐 ; 璁拌浇瀹為獙 ; 062306
• 刊名：SCIENCE CHINA Information Sciences
• 出版年：2015
• 出版时间：June 2015
• 年：2015
• 卷：58
• 期：6
• 页码：1-10
• 全文大小：503 KB
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• 作者单位：BingChen Zhang (1) (2)
  Zhe Zhang (1) (2) (3)
  ChengLong Jiang (1) (2) (3)
  Yao Zhao (1) (2)
  Wen Hong (1) (2)
  YiRong Wu (1) (2)
  
  1. Science and Technology on Microwave Imaging Laboratory, Chinese Academy of Sciences, Beijing, 100190, China
  2. Institute of Electronics, Chinese Academy of Sciences, Beijing, 100190, China
  3. University of Chinese Academy of Sciences, Beijing, 100190, China
  
• 刊物类别：Computer Science
• 刊物主题：Chinese Library of Science
  Information Systems and Communication Service
  
• 出版者：Science China Press, co-published with Springer
• ISSN：1869-1919

文摘

In this paper, we mainly study the system design of sparse microwave imaging radar and report some of the preliminary results of airborne experiments performed with it. Sparse microwave imaging radar is a novel concept which introduces the sparse signal processing theory to microwave imaging replacing the conventional matched filtering processing method. With the exploitation of the sparse microwave imaging, the radar system could achieve better performance. As a newly developed concept, the two main types of applications of sparse microwave imaging are found in adopting the sparse signal processing theory to current radar systems, and in designing an optimized sparse microwave imaging system. Here we are trying the latter that mainly aims at lower PRF and wider swath. We first introduce the theories of sparse microwave imaging radar and its imaging algorithm. Then we discuss the system designing principles, including the sampling scheme, signal bandwidth, SNR and multi-channel mode. Based on the relationships of these parameters, we provide a design example of radar parameters. In the end, we exploit an airborne experiment using our designed radar system with jittered azimuth sampling strategy. Some preliminary analysis from the experiment result is also provided.