Results 51 to 60 of about 457 (166)

Focusing High Maneuvering Bistatic Forward-Looking SAR With Stationary Transmitter Using Extended Keystone Transform and Modified Frequency Nonlinear Chirp Scaling

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022
This article presents an imaging solution for high maneuvering bistatic forward-looking SAR with stationary transmitter (STHM-BFSAR). In STHM-BFSAR configuration that the transmitter is mounted on a stationary platform in side-looking mode while the ...
Jiabao Ding, Yachao Li, Ming Li, Jiadong Wang   +3 more
doaj   +1 more source

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

Earth 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, Batuhan Osmanoğlu, Bernd Scheuchl, Shadi Oveisgharan, Jeanne M. Sauber, MinJeong Jo, Ala Khazendar, Ekaterina Tymofyeyeva, Betsy Wusk, Arif Albayrak   +9 more
wiley   +1 more source

Bistatic SAR tomography: Processing and experimental results [PDF]

2010 IEEE International Geoscience and Remote Sensing Symposium, 2010
This paper presents across-track tomography applied to a bistatic geometry with fixed receivers. This kind of geometry can overcome some of the classical monostatic tomography limitations such as temporal decorrelation and irregular baseline distribution.
Duque Biarge, Sergio, López Dekker, Francisco J., Merlano Duncan, Juan Carlos, Mallorquí Franquet, Jordi Joan   +3 more
openaire   +2 more sources

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

Electronics 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, F. M. Watson, W. R. B. Lionheart   +2 more
wiley   +1 more source

Flood Mapping in a Complex Environment Using Bistatic TanDEM-X/TerraSAR-X InSAR Coherence

Remote Sensing, 2018
In this paper, we assess the flood mapping capabilities of the X-band Synthetic Aperture Radar (SAR) imagery acquired by the bistatic pair TanDEM-X/TerraSAR-X (TDX/TSX).
Chayma Chaabani, Marco Chini, Riadh Abdelfattah, Renaud Hostache, Karem Chokmani   +4 more
doaj   +1 more source

Multistatic Synthetic Aperture Radar Autofocus for Back Projection Imaging of a Moving Target

Electronics Letters, Volume 61, Issue 1, January/December 2025.
This paper presents a new metric‐based autofocus approach, called Localised Threshold Sharpness (LTS), which employs Multistatic SAR data to localise and focus a target moving with up to six degrees of freedom motion on a real‐time, pulse‐by‐pulse basis.
Anmol Rattan, Daniel Andre, Mark Finnis
wiley   +1 more source

First bistatic spaceborne SAR experiments with TanDEM-X [PDF]

2011 IEEE International Geoscience and Remote Sensing Symposium, 2011
TanDEM-X is a high-resolution interferometric mission with the main goal of providing a global and unprecedentedly accurate digital elevation model (DEM) of the Earth surface by means of single-pass X-band SAR interferometry. Despite its usual quasi-monostatic configuration, TanDEM-X is the first genuinely bistatic SAR system in space.
Marc Rodriguez-Cassola, Pau Prats, Daniel Schulze, Nuria Tous-Ramon, Ulrich Steinbrecher, Luca Marotti, Matteo Nannini, Marwan Younis, Paco Lopez-Dekker, Paco López-Dekker, Manfred Zink, Andreas Reigber, Gerhard Krieger, Alberto Moreira   +13 more
openaire   +4 more sources

Ionospheric Faraday Rotation Angle Estimation for Bistatic Spaceborne SAR

Electronics Letters, Volume 61, Issue 1, January/December 2025.
This paper proposes a Faraday rotation angle estimation method for bistatic spaceborne SAR. The effectiveness of the method is verified through simulation experiments and the performance of the method is analysed. Under different SNR and filtering window sizes, the estimation error range is 0.02°–0.26°. ABSTRACT Bistatic synthetic aperture radar (SAR)
Kailun Zhang, Zhuo Li
wiley   +1 more source

Beam Footprint Detection and Tracking for Non-cooperative Bistatic SAR [PDF]

Radioengineering, 2016
In non-cooperative bistatic synthetic aperture radar (SAR), the position of transmitter’s beam footprint should be detected and tracked in real-time to perform beam synchronization.
F. Yan, W. Chang, X. Li, Q. Zhang
doaj  

Vehicle Target Detection Based on Cross‐Modality Projective‐Invariant Features Extracted from Unpaired SAR and Infrared Images

Electronics Letters, Volume 61, Issue 1, January/December 2025.
A novel dual‐channel context‐guided feature‐alignment network (CGFAN) that is capable of fusing the cross‐modality projective‐invariant features extracted from unpaired SAR and IR images is proposed. First, region of interest matching between SAR and IR images are realized based on special landmarks exhibiting consistent cross‐modality features.
Zhe Geng, Chongqi Xu, Chen Xin, Xiang Yu, Daiyin Zhu   +4 more
wiley   +1 more source