On the use of fractional autocorrelation to correct mismatches for chirp scale focusing for real SAR image formation

Judith Northrop; Antonia Papandreou-Suppappola

doi:10.1109/ACSSC.2011.6190395

On the use of fractional autocorrelation to correct mismatches for chirp scale focusing for real SAR image formation

Judith Northrop, Antonia Papandreou-Suppappola

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

1 Scopus citations

Abstract

The fractional Fourier transform (FrFT) was shown to be an effective signal processing technique in many synthetic aperture radar (SAR) applications, and most recently, it was used to enhance the focusing capabilities of the chirp scaling algorithm (CSA). We propose the use of the fractional autocorrelation function in a local optimization procedure to detect mismatches in the fast-time linear frequency-modulated rate and correct these mismatches with the FrFT before CSA processing. Additionally, we enhance slow-time processing with the FrFT in order to maximize the contrast of targets in each range-bin. As we will demonstrate using SAR images, this processing increase SAR image quality.

Original language	English (US)
Title of host publication	Conference Record of the 45th Asilomar Conference on Signals, Systems and Computers, ASILOMAR 2011
Pages	2084-2088
Number of pages	5
DOIs	https://doi.org/10.1109/ACSSC.2011.6190395
State	Published - Dec 1 2011
Event	45th Asilomar Conference on Signals, Systems and Computers, ASILOMAR 2011 - Pacific Grove, CA, United States Duration: Nov 6 2011 → Nov 9 2011

Publication series

Name	Conference Record - Asilomar Conference on Signals, Systems and Computers
ISSN (Print)	1058-6393

Other

Other	45th Asilomar Conference on Signals, Systems and Computers, ASILOMAR 2011
Country/Territory	United States
City	Pacific Grove, CA
Period	11/6/11 → 11/9/11

ASJC Scopus subject areas

Signal Processing
Computer Networks and Communications

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10.1109/ACSSC.2011.6190395

Cite this

Northrop, J., & Papandreou-Suppappola, A. (2011). On the use of fractional autocorrelation to correct mismatches for chirp scale focusing for real SAR image formation. In Conference Record of the 45th Asilomar Conference on Signals, Systems and Computers, ASILOMAR 2011 (pp. 2084-2088). Article 6190395 (Conference Record - Asilomar Conference on Signals, Systems and Computers). https://doi.org/10.1109/ACSSC.2011.6190395

On the use of fractional autocorrelation to correct mismatches for chirp scale focusing for real SAR image formation. / Northrop, Judith; Papandreou-Suppappola, Antonia.
Conference Record of the 45th Asilomar Conference on Signals, Systems and Computers, ASILOMAR 2011. 2011. p. 2084-2088 6190395 (Conference Record - Asilomar Conference on Signals, Systems and Computers).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Northrop, J & Papandreou-Suppappola, A 2011, On the use of fractional autocorrelation to correct mismatches for chirp scale focusing for real SAR image formation. in Conference Record of the 45th Asilomar Conference on Signals, Systems and Computers, ASILOMAR 2011., 6190395, Conference Record - Asilomar Conference on Signals, Systems and Computers, pp. 2084-2088, 45th Asilomar Conference on Signals, Systems and Computers, ASILOMAR 2011, Pacific Grove, CA, United States, 11/6/11. https://doi.org/10.1109/ACSSC.2011.6190395

Northrop J, Papandreou-Suppappola A. On the use of fractional autocorrelation to correct mismatches for chirp scale focusing for real SAR image formation. In Conference Record of the 45th Asilomar Conference on Signals, Systems and Computers, ASILOMAR 2011. 2011. p. 2084-2088. 6190395. (Conference Record - Asilomar Conference on Signals, Systems and Computers). doi: 10.1109/ACSSC.2011.6190395

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On the use of fractional autocorrelation to correct mismatches for chirp scale focusing for real SAR image formation

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