A new Doppler centroid estimation method for high-squint curved-trajectory airborne synthetic aperture radar
Sign Up to like & getrecommendations! Published in 2019 at "International Journal of Remote Sensing"
DOI: 10.1080/01431161.2019.1624868
Abstract: ABSTRACT The average cross-correlation coefficient (ACCC) is a traditional Doppler centroid estimation (DCE) method applied for complex radar data. Though the ACCC method is accurate enough for moving platforms with small acceleration, it cannot be… read more here.
Keywords: centroid estimation; squint curved; doppler; high squint ... See more keywords
Spatio-temporal distribution of the zero-Doppler line of lunar-based SAR
Sign Up to like & getrecommendations! Published in 2020 at "Remote Sensing Letters"
DOI: 10.1080/2150704x.2020.1857875
Abstract: ABSTRACT Zero Doppler centroid imaging is of great significance in synthetic aperture radar interferometry (InSAR). Because the moon’s orbit is elliptical and its orientation cannot be changed artificially, the zero Doppler centroid of lunar-based synthetic… read more here.
Keywords: sar; doppler centroid; doppler; lunar based ... See more keywords
Doppler Beam Sharpening Using Estimated Doppler Centroid Based on Edge Detection and Fitting
Sign Up to like & getrecommendations! Published in 2019 at "IEEE Access"
DOI: 10.1109/access.2019.2937992
Abstract: Doppler beam sharpening (DBS) technology is widely used in applications, such as helicopter rescue and early warning surveillance. To obtain the desired DBS images with high quality, accurate Doppler centroid estimation (DoCE) is necessary. Conventional… read more here.
Keywords: doppler centroid; doppler; doppler beam; estimation ... See more keywords
Coastline Extraction From SAR Data Using Doppler Centroid Images
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Geoscience and Remote Sensing Letters"
DOI: 10.1109/lgrs.2022.3214496
Abstract: Coastline extraction by exploiting optical images is challenging during adverse weather conditions. This letter proposes coastline extraction from synthetic aperture radar (SAR) data. Since collecting in-situ data is expensive and not always possible, the Doppler… read more here.
Keywords: sar data; extraction; coastline extraction; doppler centroid ... See more keywords
A Novel Approach to Doppler Centroid and Channel Errors Estimation in Azimuth Multi-Channel SAR
Sign Up to like & getrecommendations! Published in 2019 at "IEEE Transactions on Geoscience and Remote Sensing"
DOI: 10.1109/tgrs.2019.2921094
Abstract: Multi-channel synthetic aperture radar (SAR) in azimuth can overcome the minimum-antenna-area constraint of the conventional SAR in high-resolution and wide-swath (HRWS) imaging. However, the SAR system suffers from amplitude and phase mismatch among channels and… read more here.
Keywords: doppler centroid; channel errors; multi channel; channel sar ... See more keywords
Empirical Relationship Between the Doppler Centroid Derived From X-Band Spaceborne InSAR Data and Wind Vectors
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DOI: 10.1109/tgrs.2021.3066106
Abstract: One of the challenges in ocean surface current retrieval from synthetic aperture radar (SAR) data is the estimation and removal of the wave-induced Doppler centroid (DC). This article demonstrates empirically the relationship between the dc… read more here.
Keywords: relationship; doppler centroid; wind; insar data ... See more keywords
Fast Inverse-Scattering Reconstruction for Airborne High-Squint Radar Imagery Based on Doppler Centroid Compensation
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Transactions on Geoscience and Remote Sensing"
DOI: 10.1109/tgrs.2021.3069499
Abstract: Cross-resolution enhancement for airborne high-squint radar (AHSR) imagery is mathematically equivalent to the ill-conditioned problem of inverse-scattering reconstruction. Although a variety of inversion methods with regularization can be introduced to advance the field of AHSR… read more here.
Keywords: doppler centroid; scattering reconstruction; range; imagery ... See more keywords