毫米波超综合孔径辐射计成像技术

Journal of Systems Engineering and Electronics ›› 2009, Vol. 31 ›› Issue (7): 1623-1626.

毫米波超综合孔径辐射计成像技术

郎量, 张祖荫, 郭伟, 桂良启

华中科技大学电子与信息工程系, 湖北, 武汉, 430074

收稿日期:2008-04-14 修回日期:2008-12-08 出版日期:2009-07-20 发布日期:2010-01-03
作者简介:郎量(1976- ),男,博士研究生,主要研究方向为微波遥感理论与微波遥感器.E-mail:l_lang@mailhust.edu.cn
基金资助:
国家高技术研究发展计划(863计划)资助课题(2006AA09Z143)

Imaging by millimeter wave super-synthesis radiometer

LANG Liang, ZHANG Zu-yin, GUO Wei, GUI Liang-qi

Dept. of Electronics and Information Engineering, Huazhong Univ. of Science and Technology, Wuhan 430074, China

Received:2008-04-14 Revised:2008-12-08 Online:2009-07-20 Published:2010-01-03

摘要/Abstract

摘要： 在深入了解超综合孔径辐射计的工作原理和成像性能的基础上,首次推导了超综合孔径辐射计在近场条件下采用傅氏反演方法进行成像的基本理论,并给出了超综合孔径辐射计的空间分辨率和灵敏度公式。随后,研制了由两个天线单元组成的最简单的毫米波超综合孔径辐射计原理样机,并分别用傅氏反演法和传统的匹配滤波法成功地反演得到了一维噪声点源的图像。实验结果验证了傅氏反演方法的正确性以及毫米波超综合孔径辐射计的成像能力,最后对超综合孔径辐射计和干涉式综合孔径辐射计的工作特点进行了比较。

Abstract: Based on the theory and imaging performance of super-synthesis radiometers,the near-field Fourier inversion imaging theory of SSR is deduced,and the spatial resolution and sensitivity formula of SSR are presented.The SSR including two antenna elements is designed,and one dimensional imaging experiment of noise point sources is fulfilled using a matched filtering method and Fourier inversion method respectively.The result of experiment shows that Fourier inversion method is correct.Finally,a comparison between SSR and synthetic aperture interferometric radiometer is given.

中图分类号:

TP722.6

郎量, 张祖荫, 郭伟, 桂良启. 毫米波超综合孔径辐射计成像技术[J]. Journal of Systems Engineering and Electronics, 2009, 31(7): 1623-1626.

LANG Liang, ZHANG Zu-yin, GUO Wei, GUI Liang-qi. Imaging by millimeter wave super-synthesis radiometer[J]. Journal of Systems Engineering and Electronics, 2009, 31(7): 1623-1626.