综合孔径无源成像探测系统阵列特性分析
The Characteristic of Antenna Array of Passive Synthetic Aperture Imaging System for Target Detection
  
DOI:
中文关键词:  综合孔径, 毫米波无源成像, 目标探测, 天线阵列
英文关键词:synthetic aperture, passive millimeter wave imaging, target detection, antenna array
基金项目:国家自然科学基金(NSF41505015);江西省科技厅青年科学基金(20151BAB213034);电子信息控制重点实验室基金
作者单位
张晓芸1高昭昭1李世文1陈良兵2 1. 电子信息控制重点实验室,成都610036
2. 南昌大学信息工程学院,南昌330031 
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中文摘要:
      毫米波综合孔径无源成像探测系统阵列设计一般受到系统复杂度、平台、受限布阵区域及共形等众多约束条件的限制,因此如何根据约束条件开展阵列设计是实际应用中需要解决的第一个技术问题。针对该技术问题,对常见阵列的阵列布阵特点、空频域采样特征以及阵列性能等方面进行了详细分析与比较。分析表明,在同等受限布阵空间以及天线数目近似相等的约束条件下,圆阵以及Y/ 交错Y 形阵的整体性能较优,研究结果可为毫米波综合孔径无源探测系统的理论研究和系统设计提供指导。
英文摘要:
      The antenna array of passive millimeter wave synthetic aperture imaging system is generally restricted by many constraint conditions, such as system complexity, platform, the available region for array, conformal shape and so on. So how to design the antenna array under these constraint conditions is a problem to be resolved. For the problem, some aspects of conventional arrays, such as the shape, the feature of the spatial sampling, and the performance of the array, are analyzed in detail. And comparisons are made among these conventional arrays. The results show that the array with the shape of “Y"/ staggered “Y"or the circular array is superior to other arrays, when the regions for all the array are the same and when the number of the arrays is approximately equal. The results of the study provide a nice guidance for the theoretical research and system design of the passive millimeter wave synthetic aperture imaging system.
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