Results 21 to 30 of about 193,411 (346)
Scattering-Point-Guided RPN for Oriented Ship Detection in SAR Images
Remote Sensing, 2023 Ship detection in synthetic aperture radar (SAR) images has attracted widespread attention due to its significance and challenges. In recent years, numerous detectors based on deep learning have achieved good performance in the field of SAR ship ...
Yipeng Zhang +3 more
doaj +1 more source
Airborne SAR Imaging Algorithm for Ocean Waves Based on Optimum Focus Setting
Remote Sensing, 2019 Ocean waves are the richest texture on the sea surface, from which valuable information can be inversed. In general, the Synthetic Aperture Radar (SAR) images of surface waves will inevitably be distorted due to the intricate motion of surface waves ...
Xiangfei Wei +4 more
doaj +1 more source
Remote Sensing, 2019 In synthetic aperture radar (SAR) images, azimuth ambiguity is one of the important factors that affect image quality. Generally, the azimuth ambiguity-to-signal ratio (AASR) is a measure of the azimuth ambiguity of SAR images.
Hui Meng +4 more
doaj +1 more source
Scientific Reports, 2023 This paper proposes a functionally reconfigurable integrated structure of a Fabry–Perot (FP) antenna and wideband liquid absorber. First, a two-layer partial reflecting surface (PRS) has been designed.
Yukun Zou +4 more
doaj +1 more source
Processing and initial comparison of PSR data from CAMEX-3 to SSM/I and TMI data [PDF]
, 1999 A multiband Polarimetric Scanning Radiometer (PSR) was integrated on a NASA DC-8 aircraft and flown from August through September of 1998 during the third Convection and Moisture Experiment (CAMEX-3).
Corbella Sanahuja, Ignasi +6 more
core +1 more source
Microwave Imaging by Elastic Deformation [PDF]
SIAM Journal on Applied Mathematics, 2011 In this paper, we show that by using microwave measurements at different frequencies and ultrasound localized perturbations to create local changes in the medium it is possible to extend the method developed by Ammari et al. in [SIAM J. Appl. Math., 68 (2008), pp.
Ammari, Habib +4 more
openaire +2 more sources
Analysis and Compensation Method Research on the Channel Leakage Error for Three-baseline MMWInSAR
Leida xuebao, 2013 In this paper, modeling of the channel leakage error of a three-baseline MMWInSAR (MilliMeter Wave Interferometric Synthetic Aperture Radar) is analyzed, and the mathematical expression of the error’s parameters and interference phase error is deduced ...
Qiao Ming +3 more
doaj +1 more source
Microwave Imaging under Oblique Illumination [PDF]
Sensors, 2016 Microwave imaging based on inverse scattering problem has been attracting many interests in the microwave society. Among some major technical challenges, the ill-posed, multi-dimensional inversion algorithm and the complicated measurement setup are critical ones that prevent it from practical applications.
Qingyang Meng +7 more
openaire +3 more sources
Passive Radar Imaging of Moving Targets Using WiFi Signals
Leida xuebao, 2015 In recent years, the wireless local networks are constructed rapidly and their coverage greatly increase. The passive radar imaging of moving targets using WiFi signals is studied in this paper, which may lead to wider applications of passive radars ...
Zhuang Xu-sheng +3 more
doaj +1 more source
Microwave Imaging of Cotton Bales [PDF]
Sensors, 2008 Modern moisture restoration systems are increasingly capable of adding water to cotton bales. However, research has identified large variations in internal moisture within bales that are not readily monitored by current systems. While microwave moisture sensing systems can measure average bale moisture, this can be deceptive where water is unevenly ...
Mathew G. Pelletier, Edward M. Barnes
openaire +3 more sources