Results 1 to 10 of about 34,885 (142)

Sea Ice Detection Based on Differential Delay-Doppler Maps from UK TechDemoSat-1 [PDF]

open access: yesSensors, 2017
Global Navigation Satellite System (GNSS) signals can be exploited to remotely sense atmosphere and land and ocean surface to retrieve a range of geophysical parameters. This paper proposes two new methods, termed as power-summation of differential Delay-
Yongchao Zhu   +3 more
doaj   +7 more sources

Cross-Domain OTFS Detection via Delay–Doppler Decoupling: Reduced-Complexity Design and Performance Analysis [PDF]

open access: yesEntropy
In this paper, a reduced-complexity cross-domain iterative detection for orthogonal time frequency space (OTFS) modulation is proposed that exploits channel properties in both time and delay–Doppler domains.
Mengmeng Liu   +3 more
doaj   +2 more sources

OTFS-enabled integrated sensing and communication techniques for next-generation V2X networks

open access: yes工程科学学报, 2023
The vehicle-to-everything (V2X) network has the potential to revolutionize the way we interact with vehicles and the surrounding. By utilizing innovative information and communication technologies, V2X networks can connect human beings, vehicles ...
Chunlei SUN, Linpei LI, Haijun ZHANG
doaj   +1 more source

Enhanced Doppler Resolution and Sidelobe Suppression Performance for Golay Complementary Waveforms

open access: yesRemote Sensing, 2023
An enhanced Doppler resolution and sidelobe suppression have long been practical issues for moving target detection using Golay complementary waveforms. In this paper, Golay complementary waveform radar returns are combined with a proposed processor, the
Jiahua Zhu   +5 more
doaj   +1 more source

Scatterer Identification by Atomic Norm Minimization in Vehicular mm-Wave Propagation Channels

open access: yesIEEE Access, 2022
Sparse scatterer identification with atomic norm minimization (ANM) techniques in the delay-Doppler domain is investigated for a vehicle-to-infrastructure millimeter wave propagation channel.
Herbert Groll   +5 more
doaj   +1 more source

Sensing Sea Ice Based on Doppler Spread Analysis of Spaceborne GNSS-R Data

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2020
The spaceborne Global Navigation Satellite System-Reflectometry (GNSS-R) delay-Doppler map (DDM) data collected over ocean carry typical feature information about the ocean surface, which may be covered by open water, mixed water/ice, complete ice, etc ...
Yongchao Zhu   +9 more
doaj   +1 more source

Study on the Effective Region of Active Decoy Jamming to SAR Based on Time-delay Doppler-shift Method

open access: yesLeida xuebao, 2013
The active decoy jamming to SAR based on the Time-Delay Doppler-Shift (TDDS) method takes effect in certain region. Proper utilization of jamming ensuring decoy quality is based on the study of the effective region. After the mathematical analysis of the
Liu Yong-cai   +3 more
doaj   +1 more source

Almost Linear Complexity Methods for Delay-Doppler Channel Estimation [PDF]

open access: yes, 2013
A fundamental task in wireless communication is channel estimation: Compute the channel parameters a signal undergoes while traveling from a transmitter to a receiver.
Fish, Alexander, Gurevich, Shamgar
core   +2 more sources

Passive detection of moving aerial target based on multiple collaborative GPS satellites [PDF]

open access: yes, 2020
Passive localization is an important part of intelligent surveillance in security and emergency applications. Nowadays, Global Navigation Satellite Systems (GNSSs) have been widely deployed. As a result, the satellite signal receiver may receive multiple
Chen, Yunfei   +5 more
core   +1 more source

Doppler Stretch and Delay Statistical Performance Comparison for Wideband and Narrowband Signal Model

open access: yesИзвестия высших учебных заведений России: Радиоэлектроника, 2018
Narrowband approximation of Doppler effect by a frequency shift is inappropriate for some problems of radiolocation, hydro acoustics or passive location.
I. V. Gogolev
doaj   +1 more source

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