Range ambiguity suppression in a synthetic aperture radar using pulse phase coding and two-pulse cancellation
Sign Up to like & getrecommendations! Published in 2018 at "International Journal of Remote Sensing"
DOI: 10.1080/01431161.2018.1460509
Abstract: ABSTRACT In the presence of range ambiguity, the synthetic aperture radar (SAR) systems suffer from image aliasing, which dramatically degrades the quality of SAR images. In this article, an easy-to-implement technique for range ambiguity suppression… read more here.
Keywords: two pulse; range; pulse cancellation; range ambiguity ... See more keywords
Simultaneous range ambiguity mitigation and sidelobe reduction using orthogonal non-linear frequency modulated (ONLFM) signals for satellite SAR Imaging
Sign Up to like & getrecommendations! Published in 2018 at "Remote Sensing Letters"
DOI: 10.1080/2150704x.2018.1486518
Abstract: ABSTRACT This letter first attempts to simultaneously reduce range ambiguities and sidelobes in spaceborne synthetic aperture radar (SAR). Two of the limitations of SAR are the range ambiguity phenomenon and the sidelobes effect. The range… read more here.
Keywords: frequency modulated; linear frequency; range ambiguity; range ... See more keywords
Azimuth Phase Coding by Up and Down Chirp Modulation for Range Ambiguity Suppression
Sign Up to like & getrecommendations! Published in 2019 at "IEEE Access"
DOI: 10.1109/access.2019.2944871
Abstract: High range ambiguity level will impair the spaceborne SAR image quality and hamper following SAR image applications. The range ambiguity suppression effect of the up and down chirp modulation on spaceborne SAR images is analyzed… read more here.
Keywords: ambiguity; chirp modulation; suppression; range ambiguity ... See more keywords
Range Ambiguity Mitigation in SAR With Multimode OAM Beam
Sign Up to like & getrecommendations! Published in 2024 at "IEEE Sensors Journal"
DOI: 10.1109/jsen.2024.3399461
Abstract: Ambiguity is an inevitable challenge in radar imaging. It can be divided into range ambiguity and azimuth ambiguity. Although setting a high pulse repetition frequency (PRF) can avoid azimuth ambiguity, this will aggravate the range… read more here.
Keywords: oam; ambiguity mitigation; range ambiguity; ambiguity ... See more keywords
A 2-D Method Based on Nonlinear Frequency Modulation Waveform and Phase Coding for Range Ambiguity Suppression
Sign Up to like & getrecommendations! Published in 2023 at "IEEE Geoscience and Remote Sensing Letters"
DOI: 10.1109/lgrs.2022.3233706
Abstract: Range ambiguity suppression is a key technical challenge for synthetic aperture radar (SAR) systems. Waveform diversity technology is a potential solution due to its low system complexity. In this letter, a 2-D method based on… read more here.
Keywords: range ambiguity; ambiguity; ambiguity suppression; method based ... See more keywords
Removal of Synthetic Aperture Radar Range Ambiguity by Observing Adjacent Regions
Sign Up to like & getrecommendations! Published in 2024 at "IEEE Geoscience and Remote Sensing Letters"
DOI: 10.1109/lgrs.2024.3359008
Abstract: Suppression of range ambiguity is one of the most important issues in synthetic aperture radar (SAR) observations. Range ambiguity is a phenomenon caused by scattered signals from outside of the desired observation range illuminated by… read more here.
Keywords: synthetic aperture; range ambiguity; range; aperture radar ... See more keywords
Mixing Matrix Calibration for BSS Range Ambiguity Suppression in Multichannel SAR Systems
Sign Up to like & getrecommendations! Published in 2024 at "IEEE Geoscience and Remote Sensing Letters"
DOI: 10.1109/lgrs.2024.3372654
Abstract: A significant level of range ambiguity disturbance may affect high-resolution wide-swath spaceborne synthetic aperture radar (SAR) systems with multiple elevation receive beams. To overcome this limitation, a promising approach, based on the higher order blind… read more here.
Keywords: bss; sar systems; range ambiguity; ambiguity suppression ... See more keywords
Range Ambiguity Mitigation and Range-Angle Estimation With EPC-FDA-MIMO Radar
Sign Up to like & getrecommendations! Published in 2025 at "IEEE Transactions on Aerospace and Electronic Systems"
DOI: 10.1109/taes.2025.3526908
Abstract: Range ambiguity is common for estimating range with the multiple-input–multiple-out (MIMO) radar employing elevated pulse repetition frequency (PRF). Despite that the frequency diverse array (FDA) or element-pulse coding (EPC) in transmitter provides possibility for resolving… read more here.
Keywords: range angle; fda mimo; epc fda; range ambiguity ... See more keywords
An Advanced Scheme for Range Ambiguity Suppression of Spaceborne SAR Based on Blind Source Separation
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Transactions on Geoscience and Remote Sensing"
DOI: 10.1109/tgrs.2022.3184709
Abstract: Due to the minimum antenna area constrain of synthetic aperture radar (SAR), high-resolution and wide-swath (HRWS) imaging is difficult to be achieved using classical modes, such as scan, spotlight, and so on. Range ambiguity is… read more here.
Keywords: blind source; range ambiguity; spaceborne sar; sar ... See more keywords
A Novel Transmitter-Interpulse Phase Coding MIMO-Radar for Range Ambiguity Separation
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Transactions on Geoscience and Remote Sensing"
DOI: 10.1109/tgrs.2022.3221406
Abstract: The range ambiguity issue is a technical challenge in the radar community and has been widely discussed over the years. Researchers have given special attention to multiple-input multiple-output (MIMO) radar to address the range ambiguity… read more here.
Keywords: range ambiguity; transmitter; radar; mimo radar ... See more keywords