Research on inverse synthetic aperture ladar

Xiaoyan Zhao; Xiaodong Zeng; Changqing Cao; Zhejun Feng; Chao Fu

doi:10.1117/12.836538

27 August 2009 Research on inverse synthetic aperture ladar

Xiaoyan Zhao, Xiaodong Zeng, Changqing Cao, Zhejun Feng, Chao Fu

Proceedings Volume 7382, International Symposium on Photoelectronic Detection and Imaging 2009: Laser Sensing and Imaging; 73821J (2009) https://doi.org/10.1117/12.836538
Event: International Symposium on Photoelectronic Detection and Imaging 2009, 2009, Beijing, China

Abstract

Heterodyne detection based on the inverse synthetic aperture ladar (ISAL) can obtain useful information such as phase and amplitude and frequency of the moving target. Through analysis of these information, we can conclude the exact appearance, orientation and other characteristic about the target. However, the heterodyne detection is usually difficult to accomplish. The difficulties lie in two main aspects: the first one is that the wavefront of returned signal wave and local-oscillator wave are misaligned. The second one is that the random phase delay of the returned wave. In this paper, we analyze systematically the principle and effect of heterodyne detection such as separation angle and spot size. Then a useful conclusion is presented to state the exist problem about match between signal wave and local-oscillator field.

Citation Download Citation

Xiaoyan Zhao, Xiaodong Zeng, Changqing Cao, Zhejun Feng, and Chao Fu "Research on inverse synthetic aperture ladar", Proc. SPIE 7382, International Symposium on Photoelectronic Detection and Imaging 2009: Laser Sensing and Imaging, 73821J (27 August 2009); https://doi.org/10.1117/12.836538

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available