Migration of underground targets in UWB-SAR systems

Author

Lertniphonphun, Worayot ; McClellan, James H.

Author_Institution

Sch. of Electr. Eng., Georgia Inst. of Technol., Atlanta, GA, USA

Volume

1

fYear

2000

fDate

2000

Firstpage

713

Abstract

Ultra-wideband synthetic aperture radar (UWB-SAR) systems can be used for imaging underground targets. However, conventional imaging algorithms that assume a constant velocity of propagation will exhibit degradations such as blurred targets and incorrect target locations. A superior approach is to do the processing by migrating the raw data collected by an array of sensors. In this paper, we use a filtering structure for migration as a 2-D all-pass filter, and present a practical processing method for UWB-SAR imaging. Improvements versus conventional SAR image focusing are included

Keywords

all-pass filters; array signal processing; buried object detection; filtering theory; radar imaging; synthetic aperture radar; 2D all-pass filter; SAR image focusing; UWB-SAR imaging; UWB-SAR systems; blurred targets; filtering structure; imaging algorithms; processing method; sensors array; target location; ultra-wideband synthetic aperture radar; underground targets imaging; underground targets migration; Filtering; Focusing; Government; Image generation; Image sensors; Iterative algorithms; Pixel; Sensor arrays; Signal processing; Ultra wideband technology;

fLanguage

English

Publisher

ieee

Conference_Titel

Image Processing, 2000. Proceedings. 2000 International Conference on

Conference_Location

Vancouver, BC

ISSN

1522-4880

Print_ISBN

0-7803-6297-7

Type

conf

DOI

10.1109/ICIP.2000.901058

Filename

901058