Results 31 to 40 of about 2,445 (210)

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

Solid state atomic processors for light [PDF]

open access: yesJournal of the European Optical Society-Rapid Publications, 2008
This paper is devoted to optics in rare earth ion doped crystal at low temperature. In cryogenic conditions, interesting features come from absorption rather than from transparency.
Crozatier V.   +8 more
doaj   +1 more source

Quantum limits to classically spoofing an electromagnetic signal

open access: yesPhysical Review Research, 2022
Spoofing an electromagnetic signal involves measuring its properties and preparing a spoof signal that is a close enough copy to fool a receiver. A classic application of spoofing is in radar where an airborne target attempts to avoid being tracked by a ...
Jonathan N. Blakely, Shawn D. Pethel
doaj   +1 more source

Spaceborne ISAL Imaging Algorithm for High-Speed Moving Targets

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2023
During the spaceborne inverse synthetic aperture ladar (ISAL) imaging, the radial velocity between the piggyback satellite of ladar and the observed satellite is usually relatively large, which will introduce the inner-pulse Doppler that cannot be ...
Hongfei Yin   +6 more
doaj   +1 more source

Optimal Configuration of Array Elements for Hybrid Distributed PA-MIMO Radar System Based on Target Detection

open access: yesRemote Sensing, 2022
This paper establishes a hybrid distributed phased array multiple-input multiple-output (PA-MIMO) radar system model to improve the target detection performance by combining coherent processing gain and spatial diversity gain.
Cheng Qi   +4 more
doaj   +1 more source

The Calculation and Analysis of the Bistatic Quantum Radar Cross Section for the Typical 2-D Plate

open access: yesIEEE Photonics Journal, 2018
The quantum radar cross section (QRCS) describes how much return one gets when illuminating an object with a handful of photons. However, the previous studies mainly focused on the monostatic scattering of quantum radar.
Chonghua Fang   +6 more
doaj   +1 more source

Introduction to quantum radar

open access: yes, 2020
After a brief introduction to the notion of quantum entanglement and quantum correlations, several schemes for a quantum radar based upon the quantum illumination and others protocols are discussed. We review different concepts that have been introduced to overcome several of the inherent difficulties in the implementation of quantum generation and/or ...
Torromé, Ricardo Gallego   +2 more
openaire   +2 more sources

Frontier Advances of Emerging High‐Entropy Anodes in Alkali Metal‐Ion Batteries

open access: yesAdvanced Functional Materials, EarlyView.
Recent advances in microscopic morphology control of high‐entropy anode materials for alkali metal‐ion batteries. Abstract With the growing demand for sustainable energy, portable energy storage systems have become increasingly critical. Among them, the development of rechargeable batteries is primarily driven by breakthroughs in electrode materials ...
Liang Du   +14 more
wiley   +1 more source

Quantum illumination with a generic Gaussian source

open access: yesPhysical Review Research, 2020
With the aim to loosen the entanglement requirements of quantum illumination, we study the performance of a family of Gaussian states at the transmitter, combined with an optimal and joint quantum measurement at the receiver.
Athena Karsa   +3 more
doaj   +1 more source

Photocatalytic Water Splitting on the Lunar Surface: Prospects for In Situ Resource Utilization

open access: yesAdvanced Materials Interfaces, EarlyView.
Water has been found in craters on the moon nearby locations which are illuminated >80% of the time. Photocatalysis uses energy from sunlight to drive chemical reactions such as water splitting to produce oxygen and hydrogen. It is a scalable technology that requires lighter equipment and utilizes resources available on the moon. ABSTRACT The discovery
Ranjani Kalyan   +6 more
wiley   +1 more source

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