Results 21 to 30 of about 149,695 (146)

Bi/multi-static Synthetic Aperture Radar Using Spaceborne Illuminator

open access: yesLeida xuebao, 2023
Bi/multistatic Synthetic Aperture Radar (SAR) using spaceborne illuminator utilizes spaceborne platforms as transmitters and satellites, near-space vehicles, aircraft, and ground platforms as receivers, which allows high-resolution imaging of ground and ...
Junjie WU   +8 more
doaj   +1 more source

An Antideceptive Jamming Method for Multistatic Synthetic Aperture Radar Based on Collaborative Localization and Spatial Suppression

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2020
In recent years, the research of multistatic synthetic aperture radar (SAR) has become a hot spot because of its great potentials in military and civil applications. However, it is inevitably disturbed by electronic countermeasures.
Wenjing Wang   +4 more
doaj   +1 more source

Soil Moisture Retrieval Using Multistatic L-Band SAR and Effective Roughness Modeling

open access: yesRemote Sensing, 2022
The interest in bistatic SAR systems for soil moisture monitoring has grown over recent years, since theoretical studies suggest that the impact of surface roughness on the retrieval of soil moisture decreases when multistatic, i.e., simultaneous mono ...
Emma Tronquo   +5 more
doaj   +1 more source

Spaceborne bi- and multistatic SAR: potential and challenges [PDF]

open access: yesIEE Proceedings - Radar, Sonar and Navigation, 2006
Bi- and multistatic synthetic aperture radar (SAR) operates with distinct transmit and receive antennas that are mounted on separate platforms. Such a spatial separation has several operational advantages, which will increase the capability, reliability and flexibility of future SAR missions.
Krieger, Gerhard, Moreira, Alberto
openaire   +6 more sources

Along-Track Swarm SAR: Echo Modeling and Sub-Aperture Collaboration Imaging Based on Sparse Constraints

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2023
This article proposes an along-track swarm synthetic aperture radar (ATS-SAR) system to accomplish the high frame rate and enhance imaging resolution simultaneously.
Nan Jiang   +4 more
doaj   +1 more source

Laboratory bistatic synthetic aperture radar coherent change detection investigation

open access: yesElectronics Letters, 2023
Synthetic Aperture Radar (SAR) Coherent Change Detection (CCD) allows for the detection of very small scene changes. This is particularly useful for reconnaissance and surveillance as small changes such as vehicle tracks can be identified.
Alexander Hagelberg   +2 more
doaj   +1 more source

Digital Beamforming on Receive: Techniques and Optimization Strategies for High-Resolution Wide-Swath SAR Imaging [PDF]

open access: yes, 2009
Synthetic Aperture Radar (SAR) is a well-proven imaging technique for remote sensing of the earth. However, conventional SAR systems are not capable to fulfill the increasing demands for im-proved spatial resolution and wider swath coverage.
Alberto Moreira   +5 more
core   +1 more source

Forthcoming Spaceborne SAR Development

open access: yesLeida xuebao, 2020
Spaceborne Synthetic Aperture Radar (SAR), which can be mounted on space vehicles to collect information of the entire planet with all-day and all-weather imaging capacity, has been an indispensable device for earth observation. Currently, the technology
DENG Yunkai   +5 more
doaj   +1 more source

An Imaging Method for Spaceborne Cooperative Multistatic SAR Formations With Nonzero Cross-Track Baselines

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022
Spaceborne multistatic synthetic aperture radar (M-SAR) formations can deploy multiple spatially separated receiving phase centers along the along-track (AT) direction to achieve high-resolution wide-swath.
Haoyu Lin   +4 more
doaj   +1 more source

MuA-SAR Fast Imaging Based on UCFFBP Algorithm with Multi-Level Regional Attention Strategy

open access: yesRemote Sensing, 2023
Multistatic airborne SAR (MuA-SAR) benefits from the ability to flexibly adjust the positions of multiple transmitters and receivers in space, which can shorten the synthetic aperture time to achieve the required resolution.
Fanyun Xu   +6 more
doaj   +1 more source

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