Results 11 to 20 of about 178,095 (274)

Performance analysis of the coherent FMCW photonic radar system under the influence of solar noise

open access: yesFrontiers in Physics, 2023
The real-time high-resolution target detection in radar applications has increased the demand for photonic radar systems due to their higher bandwidth and faster processing capabilities over conventional microwave radar.
Annapurna Kumari   +2 more
doaj   +1 more source

NOISE REDUCTION AND INTERPRETATION OF ICE-PENETRATING RADAR DATA IN ANTARCTIC ICE SHEET BASED ON VARIATIONAL MODE DECOMPOSITION [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2019
Ice-penetrating radar is an effective method for studying the subglacial bedrock and ice information within the Antarctic ice sheet. Because of the low conductivity of ice and the relatively uniform composition of ice sheets in the polar region, ice ...
X. Tang, S. Cheng, J. Guo
doaj   +1 more source

Joint radar-communication waveform designs using signals from multiplexed users [PDF]

open access: yes, 2020
Joint radar-communication designs are exploited in applications where radar and communications systems share the same frequency band or when both radar sensing and information communication functions are required in the same system.
Cao, Ning   +3 more
core   +1 more source

Reduction of Multiplicative Noise in Radar Images

open access: yesИзвестия высших учебных заведений России: Радиоэлектроника, 2021
Introduction. A radar image is an image obtained by remote sensing the earth's surface with a radar device. Radar images are characterized by background graininess caused by speckle noise, which should be filtered to improve the quality of radar images ...
A. A. Tuzova, V. A. Pavlov, A. A. Belov
doaj   +1 more source

Quantum Two-Mode Squeezing Radar and Noise Radar: Correlation Coefficient and Integration Time

open access: yesIEEE Access, 2020
Quantum two-mode squeezing (QTMS) radars and noise radars perform matched filtering of the received signal using a reference signal stored within the radar.
David Luong   +2 more
doaj   +1 more source

Detailed Analysis and Modeling of Phase Noise and Systematic Phase Distortions in FMCW Radar Systems

open access: yesIEEE Journal of Microwaves, 2022
In coherent continuous-wave (CW) radar systems, such as frequency-modulated CW (FMCW) radar systems, measurement precision is distorted by phase noise and systematic phase errors during radar signal generation.
Peter Tschapek   +3 more
doaj   +1 more source

Noise radar range doppler imaging via 2D generalized smoothed‐l0

open access: yesElectronics Letters, 2021
This paper presents an algorithm to enhance the range‐Doppler imaging performance for noise radar. Traditional matched filtering based method suffers from high range and Doppler sidelobes, which makes the weak targets overwhelmed by the sidelobes of ...
Xingyu Lu, Hong Gu, Weimin Su
doaj   +1 more source

Information technology based on noise-like signals [PDF]

open access: yesИзвестия высших учебных заведений: Прикладная нелинейная динамика
The purpose of this article is a brief overview of the results of research on the use of noise-like signals in broadband radio systems conducted under the leadership of Yuri Vasilyevich Gulyaev. Methods.
Gulyaev, Yuri Vasilyevich   +3 more
doaj   +1 more source

Radar Signal Intrapulse Modulation Recognition Based on a Denoising-Guided Disentangled Network

open access: yesRemote Sensing, 2022
Accurate recognition of radar modulation mode helps to better estimate radar echo parameters, thereby occupying an advantageous position in the radar electronic warfare (EW).
Xiangli Zhang   +7 more
doaj   +1 more source

Super-Resolving Quantum Radar: Coherent-State Sources with Homodyne Detection Suffice to Beat the Diffraction Limit [PDF]

open access: yes, 2013
There has been much recent interest in quantum metrology for applications to sub-Raleigh ranging and remote sensing such as in quantum radar. For quantum radar, atmospheric absorption and diffraction rapidly degrades any actively transmitted quantum ...
Dowling, Jonathan P.   +3 more
core   +4 more sources

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