Multiple channels extended chirp scaling algorithm for spaceborne multi-channels data processing in ScanSAR mode

Wei Yang; Chunsheng Li; Jie Chen; Pengbo Wang

Multiple channels extended chirp scaling algorithm for spaceborne multi-channels data processing in ScanSAR mode

Wei Yang^*
, Chunsheng Li
, Jie Chen
, Pengbo Wang

^*Corresponding author for this work

School of Electronic and Information Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

Aimed at the realization of ultra-wide-swath, the operation of spaceborne multi-channels synthetic aperture radar (SAR) systems in ScanSAR mode was studied. Based on the characteristic analysis of the mode, a new method of ultra-wide-swath was presented as well as the imaging algorithm (MCECS, multiple channels extended chirp scaling). The algorithm calibrates amplitude and phase difference among receive-channels by internal calibration data and reconstructs nonuniformly sampled signal in azimuth by filter banks. After Scalloping remedy by applying the amendatory length of antenna and accurate focusing, it enabled the subswaths combination after image geocoding by solving the quartic equation. Finally, computer simulations show the validity of the algorithm.

Original language	English
Pages (from-to)	1196-1201
Number of pages	6
Journal	Beijing Hangkong Hangtian Daxue Xuebao/Journal of Beijing University of Aeronautics and Astronautics
Volume	37
Issue number	10
State	Published - Oct 2011

Keywords

Multi-channels antenna
Nonuniformly sample
Synthetic aperture radar
Ultra-wide-swath

Cite this

@article{86d4eb4c24db4fd19249146a42fca193,

title = "Multiple channels extended chirp scaling algorithm for spaceborne multi-channels data processing in ScanSAR mode",

abstract = "Aimed at the realization of ultra-wide-swath, the operation of spaceborne multi-channels synthetic aperture radar (SAR) systems in ScanSAR mode was studied. Based on the characteristic analysis of the mode, a new method of ultra-wide-swath was presented as well as the imaging algorithm (MCECS, multiple channels extended chirp scaling). The algorithm calibrates amplitude and phase difference among receive-channels by internal calibration data and reconstructs nonuniformly sampled signal in azimuth by filter banks. After Scalloping remedy by applying the amendatory length of antenna and accurate focusing, it enabled the subswaths combination after image geocoding by solving the quartic equation. Finally, computer simulations show the validity of the algorithm.",

keywords = "Multi-channels antenna, Nonuniformly sample, Synthetic aperture radar, Ultra-wide-swath",

author = "Wei Yang and Chunsheng Li and Jie Chen and Pengbo Wang",

year = "2011",

month = oct,

language = "英语",

volume = "37",

pages = "1196--1201",

journal = "Beijing Hangkong Hangtian Daxue Xuebao/Journal of Beijing University of Aeronautics and Astronautics",

issn = "1001-5965",

publisher = "Beijing University of Aeronautics and Astronautics (BUAA)",

number = "10",

}

Multiple channels extended chirp scaling algorithm for spaceborne multi-channels data processing in ScanSAR mode. / Yang, Wei; Li, Chunsheng; Chen, Jie et al.
In: Beijing Hangkong Hangtian Daxue Xuebao/Journal of Beijing University of Aeronautics and Astronautics, Vol. 37, No. 10, 10.2011, p. 1196-1201.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - Multiple channels extended chirp scaling algorithm for spaceborne multi-channels data processing in ScanSAR mode

AU - Yang, Wei

AU - Li, Chunsheng

AU - Chen, Jie

AU - Wang, Pengbo

PY - 2011/10

Y1 - 2011/10

N2 - Aimed at the realization of ultra-wide-swath, the operation of spaceborne multi-channels synthetic aperture radar (SAR) systems in ScanSAR mode was studied. Based on the characteristic analysis of the mode, a new method of ultra-wide-swath was presented as well as the imaging algorithm (MCECS, multiple channels extended chirp scaling). The algorithm calibrates amplitude and phase difference among receive-channels by internal calibration data and reconstructs nonuniformly sampled signal in azimuth by filter banks. After Scalloping remedy by applying the amendatory length of antenna and accurate focusing, it enabled the subswaths combination after image geocoding by solving the quartic equation. Finally, computer simulations show the validity of the algorithm.

AB - Aimed at the realization of ultra-wide-swath, the operation of spaceborne multi-channels synthetic aperture radar (SAR) systems in ScanSAR mode was studied. Based on the characteristic analysis of the mode, a new method of ultra-wide-swath was presented as well as the imaging algorithm (MCECS, multiple channels extended chirp scaling). The algorithm calibrates amplitude and phase difference among receive-channels by internal calibration data and reconstructs nonuniformly sampled signal in azimuth by filter banks. After Scalloping remedy by applying the amendatory length of antenna and accurate focusing, it enabled the subswaths combination after image geocoding by solving the quartic equation. Finally, computer simulations show the validity of the algorithm.

KW - Multi-channels antenna

KW - Nonuniformly sample

KW - Synthetic aperture radar

KW - Ultra-wide-swath

UR - https://www.scopus.com/pages/publications/82055191138

M3 - 文章

AN - SCOPUS:82055191138

SN - 1001-5965

VL - 37

SP - 1196

EP - 1201

JO - Beijing Hangkong Hangtian Daxue Xuebao/Journal of Beijing University of Aeronautics and Astronautics

JF - Beijing Hangkong Hangtian Daxue Xuebao/Journal of Beijing University of Aeronautics and Astronautics

IS - 10

ER -

Multiple channels extended chirp scaling algorithm for spaceborne multi-channels data processing in ScanSAR mode

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Keywords

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