Results 21 to 30 of about 160,282 (360)
Doppler Spectrum Estimation by Ramanujan Fourier Transforms [PDF]
, 2009 The Doppler spectrum estimation of a weather radar signal in a classic way can be made by two methods, temporal one based in the autocorrelation of the successful signals, whereas the other one uses the estimation of the power spectral density PSD by ...
Bensebti, Messaoud, Lagha, Mohand
core +4 more sources
Imaging Algorithm for Rotor Synthetic Aperture Radar Using Stepped-frequency Waveform
Leida xuebao, 2014 For ROtor Synthetic Aperture Radar (ROSAR) using the stepped-frequency waveform, an imaging method based on Range Migration Correction (RMC) for ROSAR is proposed.
Zeng Cao +3 more
doaj +1 more source
Bistatic MIMO Radar Clutter Suppression by Exploiting the Transmit Angle
Leida xuebao, 2014 The transmit angle of bistatic radars can be obtained by introducing Multiple-Input Multiple-Output (MIMO) radar techniques. The Three-Dimensional (3D) clutter spectra, that is, the transmit angle, receive angle, and Doppler frequency, are introduced ...
Li Jun +3 more
doaj +1 more source
Research Progress and Prospect for the Noval Waveform Diverse Array Radar
Leida xuebao, 2021 It is difficult for the traditional radar to suppress deceptive mainlobe interference and separate the range ambiguous clutter. The proposal of a waveform diverse array changes the way of obtaining information through utilizing degrees-of-freedom in the ...
Shengqi ZHU +4 more
doaj +1 more source
Synthetic aperture radar demonstration kit for signal processing education [PDF]
, 2007 A Synthetic Aperture Radar scale model has been developed to improve signal processing teaching. Based on low frequency ultrasound transmission, it is a low cost demonstration kit.
Besson, Olivier +4 more
core +1 more source
A SIFT Algorithm for Bistatic SAR Imaging in Spaceborne Constant-offset Configuration (in English)
Leida xuebao, 2013 Focusing on the problem of the space-variance of the range cell migration term for bistatic Synthetic Aperture Radar (SAR), a Scaled Inverse Fourier Transform (SIFT) based imaging algorithm for constant-offset configuration bistatic SAR data processing ...
Chen Shi-chao +3 more
doaj +1 more source
Remote Sensing, 2022 The clutter background in modern radar target detection is complex and changeable. The performance of classical detectors based on parametric statistical modeling methods is often degraded due to model mismatch. Existing data-driven deep learning methods
Xueling Liang +4 more
doaj +1 more source
Forward-Looking Super-Resolution Imaging of MIMO Radar via Sparse and Double Low-Rank Constraints
Remote Sensing, 2023 Multiple-input multiple-output (MIMO) radar uses waveform diversity technology to form a virtual aperture to improve the azimuth resolution of forward-looking imaging.
Junkui Tang +4 more
doaj +1 more source
3D Fully Polarimetric Attributed Scattering Center Extraction Based on Sequential 2D SAR Images
IEEE Access, 2019 Compared with the two-dimensional (2D) attributed scattering center model (ASCM), three dimensional (3D) fully polarimetric attributed scattering center model (FP-ASCM) is able to directly offer the target location, size, and orientation in 3D space ...
Yue Zhao +4 more
doaj +1 more source
MEO SAR Imaging Based on Imaging Coordinate System Optimization
Leida xuebao, 2020 In the Medium-Earth-Orbit Synthetic Aperture Radar (MEO SAR), the curved trajectory and long synthetic aperture time lead to a two-dimensional spatial variation in the signals.
Hang LI +5 more
doaj +1 more source