Results 21 to 30 of about 16,631 (258)

Quantum-enhanced noise radar [PDF]

open access: yesApplied Physics Letters, 2019
We propose a protocol for quantum illumination: a quantum-enhanced noise radar. A two-mode squeezed state, which exhibits continuous-variable entanglement between so-called signal and idler beams, is used as input to the radar system. Compared to existing proposals for quantum illumination, our protocol does not require joint measurement of the signal ...
C. W. Sandbo Chang   +4 more
openaire   +2 more sources

On the Analysis of PM/FM Noise Radar Waveforms Considering Modulating Signals with Varied Stochastic Properties

open access: yesSensors, 2021
Noise Radar technology is the general term used to describe radar systems that employ realizations of a given stochastic process as transmit waveforms. Originally, carriers modulated in amplitude by a Gaussian random signal, derived from a hardware noise
Leandro Pralon   +3 more
doaj   +1 more source

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

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

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

Signal design and processing for noise radar

open access: yesEURASIP Journal on Advances in Signal Processing, 2022
AbstractAn efficient and secure use of the electromagnetic spectrum by different telecommunications and radar systems represents, today, a focal research point, as the coexistence of different radio-frequency sources at the same time and in the same frequency band requires the solution of a non-trivial interference problem.
Gaspare Galati 0001   +2 more
openaire   +3 more sources

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

New Concept of Combined Microwave Delay Lines for Noise Radar-Based Remote Sensors

open access: yesSensors, 2019
Delay lines with a tunable length are used in a number of applications in the field of microwave techniques. The digitally-controlled analogue wideband delay line is particularly useful in noise radar applications as a precise detector of movement.
Zenon Szczepaniak, Waldemar Susek
doaj   +1 more source

MIMO noise radar - matched filters and coarrays [PDF]

open access: yes, 2008
Copyright © 2008 IEEEThe noise radar concept can be extended to an array of K transmit antenna and M receive antenna. When independent noise sources are transmitted from each antenna the approach may be viewed as a special case of MIMO radar and matched ...
Capria, A.   +3 more
core   +1 more source

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