Title :
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
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;
Conference_Titel :
Geoscience and Remote Sensing Symposium (IGARSS), 2013 IEEE International
Conference_Location :
Melbourne, VIC
Print_ISBN :
978-1-4799-1114-1
DOI :
10.1109/IGARSS.2013.6723837
