Sparse radar imaging using 2D compressed sensing

Qingkai Hou; Yang Liu; Zengping Chen; Shaoying Su

doi:10.1117/12.2067223

7 October 2014 Sparse radar imaging using 2D compressed sensing

Qingkai Hou, Yang Liu, Zengping Chen, Shaoying Su

Author Affiliations +

Proceedings Volume 9252, Millimetre Wave and Terahertz Sensors and Technology VII; 92520T (2014) https://doi.org/10.1117/12.2067223
Event: SPIE Security + Defence, 2014, Amsterdam, Netherlands

Abstract

Radar imaging is an ill-posed linear inverse problem and compressed sensing (CS) has been proved to have tremendous potential in this field. This paper surveys the theory of radar imaging and a conclusion is drawn that the processing of ISAR imaging can be denoted mathematically as a problem of 2D sparse decomposition. Based on CS, we propose a novel measuring strategy for ISAR imaging radar and utilize random sub-sampling in both range and azimuth dimensions, which will reduce the amount of sampling data tremendously. In order to handle 2D reconstructing problem, the ordinary solution is converting the 2D problem into 1D by Kronecker product, which will increase the size of dictionary and computational cost sharply. In this paper, we introduce the 2D-SL0 algorithm into the reconstruction of imaging. It is proved that 2D-SL0 can achieve equivalent result as other 1D reconstructing methods, but the computational complexity and memory usage is reduced significantly. Moreover, we will state the results of simulating experiments and prove the effectiveness and feasibility of our method.

Citation Download Citation

Qingkai Hou, Qingkai Hou, Yang Liu, Yang Liu, Zengping Chen, Zengping Chen, Shaoying Su, Shaoying Su, "Sparse radar imaging using 2D compressed sensing", Proc. SPIE 9252, Millimetre Wave and Terahertz Sensors and Technology VII, 92520T (7 October 2014); doi: 10.1117/12.2067223; https://doi.org/10.1117/12.2067223

ACCESS THE FULL ARTICLE

PERSONAL SIGN IN
Full access may be available with your subscription

Email or Username Forgot your username?

Password Forgot your password?

Show

Remember Email/Username on this computer

Remember Password

No SPIE account? Create an account
or Institutional Sign In via Shibboleth

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

Members: $14.40

Non-members: $18.00 ADD TO CART

Show All Keywords

Keywords/Phrases

Search In:

Publication Years