Results 51 to 60 of about 318 (138)

Treating the innocent victims of trolleys and war

Bioethics, Volume 39, Issue 1, Page 18-25, January 2025.
Abstract Both trolleys and war leave innocent victims to suffer death and injury. Trolley problems accounting for the injured, and not only the dead, tease out intuitions about liability that enhance our understanding of the obligation to provide compensation and medical care to civilian victims of war.
Michael L. Gross
wiley   +1 more source

Experimental Performance Analysis of Digital Beam Forming on Synthetic Aperture Radar [PDF]

, 2008
In this paper, we present the experimental results of a DBF performance to achieve High-Resolution Wide-Swath (HRWS) SAR concept. The measurements were accomplished by a ground-based DBF SAR system exploiting a switched antenna array on the receiver. SAR
Younis, Marwan, Becker, Denis, Wiesbeck, Werner, Kim, Junghyo   +3 more
core  

MirrorSAR: An HRWS Add-On for Single-Pass Multi-Baseline SAR Interferometry [PDF]

, 2021
This article reports the Phase A study results of the interferometric extension of the high-resolution wide-swath (HRWS) mission with three MirrorSAR satellites.
Villano, Michelangelo, Mittermayer, Josef, Moreira, Alberto, Buckreuss, Stefan, Pinheiro, Muriel, Bachmann, Markus, Krieger, Gerhard, Bojarski, Allan, Zonno, Mariantonietta, Stefan Buckreuss, Mariantonietta Zonno, Allan Bojarski, Josef Mittermayer, Muriel Pinheiro, Markus Bachmann, Alberto Moreira, Gerhard Krieger, Michelangelo Villano   +17 more
core   +1 more source

Moving Target Signals in High Resolution Wide Swath SAR [PDF]

, 2008
In this paper the impact of two high resolution wide swath synthetic aperture radar imaging techniques, extraction of signals from azimuth subsampled spectra and subpulse azimuth beamsteering on transmit, on ground moving target signals is analyzed ...
Krieger, Gerhard, Gabele, Martina
core  

Channel Phase Mismatch Calibration for Multichannel in Azimuth SAR Imaging Based on Eigen-structure Method

Leida xuebao, 2018
As one of the most important means to achieve a High-Resolution and Wide-Swath (HRWS) imaging of the earth, multichannel in azimuth Synthetic Aperture Radar (SAR) have attracted considerable attention in recent years.
Fan Huaitao, Zhang Zhimin, Li Ning
doaj   +1 more source

Staggered-SAR: A New Concept for High-Resolution Wide-Swath Imaging [PDF]

, 2012
Synthetic aperture radar (SAR) is the ideal sensor for the systematic observation of dynamic processes on the Earth’s surface. However, current SAR systems are limited, in that a wider coverage can only be achieved at the expense of a degraded azimuth ...
Villano, Michelangelo, Moreira, Alberto, Krieger, Gerhard   +2 more
core  

Unambiguous Reconstruction for Multichannel Nonuniform Sampling SAR Signal Based on Image Fusion

IEEE Access, 2020
Multichannel signal processing in azimuth is a vital technique to enable a wide-swath Synthetic Aperture Radar (SAR) with high azimuth resolution. However, the multichannel high-resolution and wide-swath (HRWS) SAR system always suffers from the problem ...
Liming Zhou, Xiaoling Zhang, Yangyang Wang, Liang Li, Liming Pu, Jun Shi, Shunjun Wei   +6 more
doaj   +1 more source

High Resolution Wide Swath SAR Imaging with Digital Beamforming - Performance Analysis, Optimization, System Design [PDF]

, 2006
Multi-aperture synthetic aperture radar (SAR) systems in combination with an appropriate coherent processing of the individual aperture signals enable high resolution wide swath (HRWS) SAR imaging.
Moreira, Alberto, Gebert, Nicolas, Krieger, Gerhard   +2 more
core  

Brief Analysis on the Development and Application of Multi-Input Multi-Output Synthetic Aperture Radar

Leida xuebao, 2014
Recently, a novel conception of Synthetic Aperture Radar (SAR) based on Multi-Input Multi-Output (MIMO) technology draws much attention for its potential advantages.
Zhou Wei, Liu Yong-xiang, Li Xiang, Ling Yong-shun   +3 more
doaj   +1 more source

An Efficient Multichannel SAR Channel Phase Error Calibration Method Based on Fine-Focused HRWS SAR Image Entropy

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022
Azimuth multichannel synthetic aperture radar (SAR) is a useful approach to solving minimum antenna area constraint and realizing high resolution and wide swath (HRWS) imaging by multichannel signal reconstruction.
Jixiang Xiang, Xiaojie Ding, Guang-Cai Sun, Zijing Zhang, Mengdao Xing, Wenkang Liu   +5 more
doaj   +1 more source