By Topic

Virtual-Echo Projection Method for Suppression of Noise in UWB-SAR Imaging Systems

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
$33 $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

4 Author(s)
Chaojun Wang ; Institute of Applied Physics, University of Electronic Science and Technology of China (UESTC) , Chengdu, China ; Deshuang Zhao ; Bing-Zhong Wang ; Ming Yu

The conventional time-domain back-projection (BP) imaging method typically suffers from performance degradation when the echo signals are interfered by noise. In this letter, a virtual-echo projection imaging method is proposed for noise suppression, including the suppression of the additive white Gaussian noise and the irrelevant colored noise. First, the proposed method calculates a number of coarse imaging maps by projecting the realistic echoes on the virtual echoes. Second, the fine imaging maps are calculated by accumulating all the coarse imaging maps coherently. The performance of the proposed method is numerically investigated in comparison to that of the traditional BP method. The results indicate that the proposed method outperforms the conventional BP method in suppressing both the additive white Gaussian noise and the colored noise.

Published in:

IEEE Geoscience and Remote Sensing Letters  (Volume:10 ,  Issue: 1 )