Results 31 to 40 of about 126,616 (238)

Design and Performance Analysis of Sparse TOPS SAR Mode

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022
Terrain observation by progressive scans (TOPS) is a novel and promising wide-swath synthetic aperture radar (SAR) imaging mode, which overcomes the scalloping effect existing in ScanSAR.
Hui Bi   +6 more
doaj   +1 more source

Time-Delay Multiplexing of Two Beams in a Terahertz Imaging Radar [PDF]

open access: yes, 2010
We demonstrate a time-delay multiplexing technique that doubles the frame rate of a 660–690-GHz imaging radar with minimal additional instrument complexity.
Bryllert, Tomas   +5 more
core   +1 more source

Multiple feature-enhanced synthetic aperture radar imaging [PDF]

open access: yes, 2009
Non-quadratic regularization based image formation is a recently proposed framework for feature-enhanced radar imaging. Specific image formation techniques in this framework have so far focused on enhancing one type of feature, such as strong point ...
Cetin, Mujdat   +3 more
core   +1 more source

A New Method of Robust Ground Moving Target Detection Under Different Backgrounds of Airborne SAR Based on Spatial Deformable Module

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Combined with the synthetic aperture radar (SAR) imaging algorithm, diverse simulation sample sets of ground moving targets are constructed to tackle the problem of insufficient measured data in the SAR ground moving target indication algorithm based on ...
He Yan   +8 more
doaj   +1 more source

An Extended Robust Chance-Constrained Power Allocation Scheme for Multiple Target Localization of Digital Array Radar in Strong Clutter Environments

open access: yesRemote Sensing, 2023
The traditional power allocation method for multi-target localization adopts the Robust Chance Constrained Power Allocation Scheme (RCC-PA), which does not consider the strong clutter characteristics in the current radar detection environment.
Chenyan Xue, Ling Wang, Daiyin Zhu
doaj   +1 more source

Large space antenna technology applied to radar-imaging, rain-rate measurements, and ocean wind sensing [PDF]

open access: yes, 1985
During the last decade, the utility of spaceborne microwave remote sensing systems for ocean windspeed measurement, ocean wave imaging and sea ice studies was demonstrated.
Gogineni, S., Moore, R. K.
core   +1 more source

Design and Implementation of a FPGA and DSP Based MIMO Radar Imaging System [PDF]

open access: yes, 2015
The work presented in this paper is aimed at the implementation of a real-time multiple-input multiple-output (MIMO) imaging radar used for area surveillance.
Dong Liang   +4 more
core   +2 more sources

Multiband Switchable Microwave Absorbing Metamaterials Based on Reconfigurable Kirigami–Origami

open access: yesAdvanced Functional Materials, EarlyView.
A reconfigurable metamaterial featuring tunable microwave‐absorbing and load‐bearing performance is proposed. Stretchable kirigami and bistable origami configurations are integrated as actuating components, and the synergistic deformation mechanisms are systematically analyzed.
Weimin Ding   +7 more
wiley   +1 more source

Joint Dwell Time and Bandwidth Optimization for Multi-Target Tracking in Radar Network Based on Low Probability of Intercept

open access: yesSensors, 2020
Radar network systems have been demonstrated to offer numerous advantages for target tracking. In this paper, a low probability of intercept (LPI)-based joint dwell time and bandwidth optimization strategy is proposed for multi-target tracking in a radar
Lintao Ding   +3 more
doaj   +1 more source

Charge-coupled device data processor for an airborne imaging radar system [PDF]

open access: yes, 1977
Processing of raw analog echo data from synthetic aperture radar receiver into images on board an airborne radar platform is discussed. Processing is made feasible by utilizing charge-coupled devices (CCD).
Arens, W. E.
core   +1 more source

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