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http://hdl.handle.net/10397/70518
Title: | A novel range compression algorithm for resolution enhancement in GNSS-SARs | Authors: | Zheng, Y Yang, Y Chen, W |
Issue Date: | 2017 | Source: | Sensors, July 2017, v. 17, no. 7, 1496, p. 1-13 | Abstract: | In this paper, a novel range compression algorithm for enhancing range resolutions of a passive Global Navigation Satellite System-based Synthetic Aperture Radar (GNSS-SAR) is proposed. In the proposed algorithm, within each azimuth bin, firstly range compression is carried out by correlating a reflected GNSS intermediate frequency (IF) signal with a synchronized direct GNSS base-band signal in the range domain. Thereafter, spectrum equalization is applied to the compressed results for suppressing side lobes to obtain a final range-compressed signal. Both theoretical analysis and simulation results have demonstrated that significant range resolution improvement in GNSS-SAR images can be achieved by the proposed range compression algorithm, compared to the conventional range compression algorithm. | Keywords: | GNSS-SAR Global navigation satellite system Synthetic aperture radar Range compression Range resolution |
Publisher: | Molecular Diversity Preservation International (MDPI) | Journal: | Sensors | ISSN: | 1424-8220 | DOI: | 10.3390/s17071496 | Rights: | © 2017 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). The following publication Zheng, Y., Yang, Y., & Chen, W. (2017). A novel range compression algorithm for resolution enhancement in GNSS-SARs. Sensors, 17(7), (Suppl. ), 1496, - is available athttps://dx.doi.org/10.3390/s17071496 |
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Zheng_Resolution_Enhancement_GNSS-SARs.pdf | 1.2 MB | Adobe PDF | View/Open |
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