Results 121 to 130 of about 5,131 (237)

A Novel Waveform Optimization Method for Orthogonal-Frequency Multiple-Input Multiple-Output Radar Based on Dual-Channel Neural Networks

Sensors
The orthogonal frequency-division multiplexing (OFDM) mode with a linear frequency modulation (LFM) signal as the baseband waveform has been widely studied and applied in multiple-input multiple-output (MIMO) radar systems.
Meng Xia, Wenrong Gong, Lichao Yang
doaj   +1 more source

Accuracy Estimation of Window-Based Nonlinear Frequency-Modulated Waveforms

peer reviewedWe present a generalized framework for designing rectangular envelope (RE) window-based nonlinear frequency-modulated (NLFM) radar waveforms and derive a closed-form expression of the Cramér–Rao lower bound (CRLB) for their range-Doppler ...
FOLLMANN, Marcel, Lücken, Volker, MYSORE RAMA RAO, Bhavani Shankar, ALAEE, Mohammad, Diewald, AR   +4 more
core   +1 more source

Optimal Waveforms For Compressive Sensing Radar

, 2013
Publication in the conference proceedings of EUSIPCO, Marrakech, Morocco ...
Lyubomir Zegov, Radmila Pribic, Geert Leus   +2 more
openaire   +3 more sources

Waveforms design for modern and MIMO radar

, 2013
One of the main focus of the research in modern radar systems, as MIMO (Multiple Input Multiple Output) radar and multifunction/multistatic radar, is the waveforms design and optimization in order to get a low degradation in the main lobe (low ...
Gabriele Pavan, Gaspare Galati, Galati, G, GALATI, GASPARE, Pavan, G, PAVAN, GABRIELE   +5 more
core   +1 more source

An investigation of a frequency diverse array

, 2009
This thesis presents a novel concept for focusing an antenna beam pattern as a function of range, time, and angle. In conventional phased arrays, beam steering is achieved by applying a linear phase progression across the aperture.
Antonik, P.
core  

Millimeter-Wave OFDM-FMCW Radar-Communication Integration System Design

Remote Sensing
Frequency-modulated continuous wave (FMCW) and orthogonal frequency-division multiplexing (OFDM) technologies play significant roles in millimeter-wave radar and communication. Their combinations, however, are understudied in the literature.
Jiangtao Liu, Wenyuan Feng, Tao Su, Jianzhong Chen, Shaohong Xue   +4 more
doaj   +1 more source

Advanced Synthetic Aperture Radar Based on Digital Beamforming and Waveform Diversity

, 2008
This paper introduces innovative SAR system concepts for the acquisition of high resolution radar images with wide swath coverage from spaceborne platforms.
Alberto Moreira, Moreira, Alberto, Nicolas Gebert, Younis, Marwan, Gebert, Nicolas, Krieger, Gerhard, Gerhard Krieger, Marwan Younis   +7 more
core   +1 more source

Controls on ERS altimeter measurements over ice sheets: Footprint-scale topography, backscatter fluctuations, and the dependence of microwave penetration depth on satellite orientation

, 2001
We consider the reliability of radar altimeter measurements of ice sheet elevation and snowpack properties in the presence of surface undulations. We demonstrate that over ice sheets the common practice of averaging echoes by aligning the first return ...
Wingham, DJ, Arthern, RJ, Ridout, AL
core  

Phase‐coded radar waveform design with quantum annealing

IET Radar, Sonar & Navigation
The Integrated Side Lobe Ratio (ISLR) problem the authors consider here consists in finding optimal sequences of phase shifts in order to minimise the mean squared cross‐correlation side lobes of a transmitted radar signal and a mismatched replica ...
Timothé Presles, Cyrille Enderli, Gilles Burel, El Houssaïn Baghious   +3 more
doaj   +1 more source