A Low-Power, Ambiguous Synthetic Aperture Radar Concept for Continuous Ship Monitoring
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022 This article addresses the design of a low-cost synthetic aperture radar (SAR) for a single dedicated application, namely illegal vessel detection, which can be implemented using a small satellite and is characterized by reduced transmit power and high ...
Nertjana Ustalli +2 more
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ERROR ESTIMATION AND UNAMBIGUOUS RECONSTRUCTION FOR CHINESE FIRST DUAL-CHANNEL SPACEBORNE SAR IMAGING [PDF]
ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2017 Multichannel synthetic aperture radar (SAR) is a significant breakthrough to the inherent limitation between high-resolution and wide-swath (HRWS) faced with conventional SAR.
T. Jin, T. Jin, X. Qiu, D. Hu, C. Ding
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Tomographic Performance of Multi-Static Radar Formations: Theory and Simulations
Remote Sensing, 2021 3D imaging of Earth’s surface layers (such as canopy, sub-surface, or ice) requires not just the penetration of radar signal into the medium, but also the ability to discriminate multiple scatterers within a slant-range and azimuth resolution cell.
Ilgin Seker, Marco Lavalle
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Probabilistic analysis of ambiguities in radar echo direction of arrival from meteors [PDF]
Atmospheric Measurement Techniques, 2020 Meteors and hard targets produce coherent radar echoes. If measured with an interferometric radar system, these echoes can be used to determine the position of the target through finding the direction of arrival (DOA) of the incoming echo onto the radar.
D. Kastinen, D. Kastinen, J. Kero
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SilberPrime/infrasound-signal-arrival-azimuth: v2.7.1
, 2021 This release includes the Matlab functions that calculate the infrasound signal arrival parameters: distance in km and degrees, back azimuth, and arrival times for three main propagation channels (tropospheric, stratospheric, thermospheric ...
Dr. Elizabeth A. Silber
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New Approach for Unambiguous High-Resolution Wide-Swath SAR Imaging
International Journal of Antennas and Propagation, 2014 The high-resolution wide-swath (HRWS) SAR system uses a small antenna for transmitting waveform and multiple antennas both in elevation and azimuth for receiving echoes.
Yueguan Lin +3 more
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Azimuth Phase Coding by Up and Down Chirp Modulation for Range Ambiguity Suppression
IEEE Access, 2019 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 in this paper.
Wei Xu, Pingping Huang, Weixian Tan
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FMCW sparse array imaging and restoration for microwave gauging [PDF]
Advances in Radio Science, 2012 The application of imaging radar to microwave level gauging represents a prospect of increasing the reliability of target detection. The aperture size of the used sensor determines the underlying azimuthal resolution.
S. Kolb, R. Stolle
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Precise Ambiguity Performance Evaluation for Spaceborne SAR with Diverse Waveforms
Remote Sensing, 2023 The ambiguity suppression is a technical challenge for the present generation of spaceborne synthetic aperture radar (SAR) systems since this kind of suppression does not take the high spatial resolution and wide coverage into account simultaneously. The
Guodong Jin +7 more
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Neuromorphic Near‐Sensor and In‐Sensor Computing Enabled by Next‐Generation Material‐Based Sensors
Advanced Science, EarlyView.This Review presents a structural framework that classifies neuromorphic sensing into near‐sensor and in‐sensor architectures, clarifying physical coupling between sensing and computation. The framework connects neural and synaptic device functions with recent advances in optical, mechanical, and chemical sensing, compares energy consumption and ...
Su Yeon Jung +7 more
wiley +1 more source