By Topic

Ultra wide band synthetic aperture radar real time processing with a subaperture nonlinear chirp scaling algorithm

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

5 Author(s)
Li Yueli ; Sch. of Electron. Sci. & Eng., Nat. Univ. of Defense Technol., Chang''sha, China ; Yan Shaoshi ; Zhu Guofu ; Li Jiangyang
more authors

The low frequency ultra wide band (UWB) synthetic aperture radar (SAR) is famous for its wide integration angle, which lead to a large memory capacity requirement to several gigabytes. In this paper, the base parameters of the airborne UWB SAR real time processor are analyzed. Then a modified sub-aperture and sub-band nonlinear chirp scaling (NCS) algorithm is used to divide the SAR signal processing into pipelined parallel steps. To improve the image quality, motion compensation (MoCo) and radio frequency interference (RFI) suppression are introduced in real time processing. Using a distributed-memory structure, the design and implementation based on digital signal processors (DSPs) are proposed finally. The results of the flight experiment on a “Y12” airplane show that the demanded image quality can be obtained by using real time processing.

Published in:

Synthetic Aperture Radar (APSAR), 2011 3rd International Asia-Pacific Conference on

Date of Conference:

26-30 Sept. 2011