Results 61 to 70 of about 5,417 (240)

Multistatic and Multiple Frequency Imaging Resolution Analysis-Application to GPS-Based Multistatic Radar [PDF]

open access: yes, 2012
International audienceThis paper focuses on the computation of the generalized ambiguity function (GAF) of a multiple antennas multiple frequencies radar system (MAMF).
Daout, Franck   +3 more
core   +3 more sources

A New Age of SAR: How Can Commercial Smallsat Constellations Contribute to NASA's Surface Deformation and Change Mission?

open access: yesEarth and Space Science, Volume 12, Issue 1, January 2025.
Abstract In response to the 2017 Decadal Survey, NASA conducted a five‐year study on the Surface Deformation and Change (SDC) designated observable to study potential mission concepts. As part of the SDC mission study, the Commercial Synthetic Aperture Radar (ComSAR) subgroup was tasked with evaluating the current landscape of the SAR and ...
Stacey A. Huang   +9 more
wiley   +1 more source

System Concepts for Bi- and Multi-Static SAR Missions [PDF]

open access: yes, 2003
The performance and capabilities of bi- and multistatic spaceborne synthetic aperture radar (SAR) are analyzed. Such systems can be optimized for a broad range of applications like frequent monitoring, wide swath imaging, single-pass cross-track ...
Fiedler, Hauke   +4 more
core  

Multistatic SAR Imaging: Comparison of Simulation Results and Experimental Data [PDF]

open access: yes, 2017
Synthetic aperture radar (SAR) systems in a multistatic configuration are a promising candidate for future Earth observation and reconnaissance radar systems. They overcome the sampling constraints inherent to single-channel SAR systems.
Bachmann, Markus   +4 more
core   +1 more source

Joint Weak Signal Detection and Carrier Frequency Offset Estimation for Communication in Multistatic Collaborative Passive Radar

open access: yesIET Communications, Volume 19, Issue 1, January/December 2025.
A virtual array‐based method is proposed to jointly detect communication signals and estimate the starting position and cCFO. It constructs virtual arrays based on the linear phase characteristics of the training sequence regardless of the specific signal structure, which allows it a wide range of applications.
Xiaomao Cao   +3 more
wiley   +1 more source

An ISAR target motion estimation algorithm based on a differential semblance criterion

open access: yesElectronics Letters, Volume 61, Issue 1, January/December 2025.
This study presents a novel approach for improving rotational motion estimation in multistatic Inverse Synthetic Aperture Radar (ISAR) imaging through a Differential Semblance Optimization (DSO) criterion. By reducing discrepancies across images from multiple transmitter–receiver pairs, our method enables precise yaw rotation estimation and produces ...
D. P. Huxley   +2 more
wiley   +1 more source

Development of the TanDEM-X Calibration Concept: Analysis of Systematic Errors [PDF]

open access: yes, 2010
The TanDEM-X mission, result of the partnership between the German Aerospace Center (DLR) and Astrium GmbH, opens a new era in spaceborne radar remote sensing. The first bistatic satellite synthetic aperture radar mission is formed by flying the TanDEM-
Bachmann, Markus   +3 more
core   +1 more source

A New Multistatic FMCW Radar Architecture by Over-the-Air Deramping [PDF]

open access: yes, 2015
© 2015 IEEE. Frequency modulated continuous wave (FMCW) radar is widely adopted solution for low-cost, short to medium range sensing applications. However, a multistatic FMCW architecture suitable for meeting the low-cost requirement has yet to be ...
Ash, M   +3 more
core   +1 more source

Sparse Array Configuration Optimization Based on Target Priors in Distributed ISAR Imaging

open access: yesElectronics Letters, Volume 61, Issue 1, January/December 2025.
In this letter, we consider the sparse array configuration optimization problem for distributed inverse synthetic aperture radar (ISAR) imaging of long‐range targets, aiming to suppress the strong grating lobes caused by sparse sampling. Particularly, we propose a distributed ISAR configuration optimization method, which constructs an equivalent ...
Siyu Zhao, Guangbin Zhang, Yan Wang
wiley   +1 more source

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