Channel error estimation methods for multi-channel HRWS SAR systems

Author

Taoli Yang ; Zhenfang Li ; Yanyang Liu ; Zhiyong Suo ; Zheng Bao

Author_Institution

Key Lab. for Radar Signal Process., Xidian Univ., Xi´an, China

fYear

2013

fDate

21-26 July 2013

Firstpage

4507

Lastpage

4510

Abstract

In this paper, a comparison between four channel error estimation methods for high resolution and wide swath (HRWS) synthetic aperture radar (SAR) systems is present. Three of the methods are based on subspace theory and implemented in Doppler frequency domain, while the fourth is based on the correlation between adjacent samples and implemented in time domain. After a brief overview of the approaches, the performance of each is analyzed with respect to its computational complexity and precondition. Quantitative results are shown using the ground-based real-data.

Keywords

Doppler radar; channel estimation; computational complexity; frequency-domain analysis; radar resolution; synthetic aperture radar; time-domain analysis; Doppler frequency domain; channel error estimation method; computational complexity; ground-based real-data; high resolution and wide swath synthetic aperture radar system; multichannel HRWS SAR system; subspace theory; Azimuth; Bandwidth; Channel estimation; Doppler effect; Error analysis; Synthetic aperture radar; Time-domain analysis; Synthetic aperture radar (SAR); channel error; high resolution and wide swath (HRWS); multi-channel;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium (IGARSS), 2013 IEEE International

Conference_Location

Melbourne, VIC

ISSN

2153-6996

Print_ISBN

978-1-4799-1114-1

Type

conf

DOI

10.1109/IGARSS.2013.6723837

Filename

6723837