Results 11 to 20 of about 55,165 (228)
Synthetic Aperture Radar (SAR) for Ocean: A Review
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2023 Oceans cover approximately 71% of the Earth's surface and provide numerous services to the environment and humans. Precise, real-time, and large-scale monitoring of the oceanographic parameters is essential for ocean conservation and understanding the interactions between oceans and the atmosphere. In this regard, synthetic aperture radar
Reza Mohammadi Asiyabi +5 more
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Comments on rendering synthetic aperture radar (SAR) images
Radar Sensor Technology XXV, 2021 Once Synthetic Aperture Radar (SAR) images are formed, they typically need to be stored in some file format which might restrict the dynamic range of what can be represented. Thereafter, for exploitation by human observers, the images might need to be displayed in a manner to reveal the subtle scene reflectivity characteristics the observer seeks ...
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Forward-Looking MIMO-SAR for Enhanced Radar Imaging in Autonomous Mobile Robots
IEEE Access, 2023 Synthetic aperture radar (SAR) techniques are commonly used in spaceborne and airborne side-looking radar imaging applications, where the relatively high platform speeds enable the formation of very long synthetic apertures, which provide images with ...
Adnan Albaba +4 more
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Coherent Performance Analysis of the HJ-1-C Synthetic Aperture Radar
Leida xuebao, 2014 Synthetic Aperture Radar (SAR) is a coherent imaging radar. Hence, coherence is critical in SAR imaging. In a coherent system, several sources can degrade performance.
Li Hai-ying +3 more
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AN INTRODUCTION TO SYNTHETIC APERTURE RADAR (SAR) [PDF]
Progress In Electromagnetics Research B, 2008 This paper outlines basic principle of Synthetic Aperture Radar (SAR). Matched filter approaches for processing the received data and pulse compression technique are presented. Besides the SAR radar equation, the linear frequency modulation (LFM) waveform and matched filter response are also discussed. Finally the system design consideration of various
Chan, Yee Kit, Koo, Voon Chet
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SYNTHETIC APERTURE RADAR (SAR) SIGNAL GENERATION
Progress In Electromagnetics Research B, 2008 This paper outlines the trend of signal generation in synthetic aperture radar particularly chirp (linear FM signal) generation using digital approach. A study in fundamental of FM signal and typical analog FM signal generation is highlighted. Various signal generation in SAR using digital techniques is discussed and finally the some of the digital ...
Chan, Yee Kit, Lim, Soo Yong
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Motion measurement impact on synthetic aperture radar (SAR) geolocation
Radar Sensor Technology XXV, 2021 Often a crucial exploitation of a Synthetic Aperture Radar (SAR) image requires accurate and precise knowledge of its geolocation, or at least the geolocation of a feature of interest in the image. However, SAR, like all radar modes of operation, makes its measurements relative to its own location or position.
Armin Doerry, Douglas Bickel
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The Journal of Engineering, 2013 Non-linear chirp scaling (NLCS) is a feasible method to deal with time-variant frequency modulation (FM) rate problem in synthetic aperture radar (SAR) imaging.
Chen Qi +3 more
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A Novel Imaging Scheme of Squint Multichannel SAR: First Result of GF-3 Satellite
Remote Sensing, 2022 The azimuth multichannel synthetic aperture radar (MC-SAR) is an effective means of earth observation due to its high-resolution and wide-swath (HRWS) imaging capability.
Yini Lv +4 more
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New moving target Doppler centroid expression in geosynchronous SAR
The Journal of Engineering, 2019 Various techniques have been proposed in the literature to tackle the problem of moving target detection in the low-earth orbit synthetic aperture radar (LEO SAR) scenarios.
Mounir Melzi +3 more
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