Detection of iceberg using Delay Doppler and interferometric Cryosat-2 altimeter data
Sign Up to like & getrecommendations! Published in 2018 at "Remote Sensing of Environment"
DOI: 10.1016/j.rse.2018.04.037
Abstract: Abstract The Cryosat-2 Synthetic Aperture Interferometric Radar Altimeter (SIRAL) altimeter is the first altimeter that can operate in three different modes over the ocean: the classical pulse limited LRM, the Delay Doppler or SAR and… read more here.
Keywords: detection iceberg; delay doppler; altimeter;
A New Micro-Subcarrier OFDM-Based Waveform for Delay Doppler Domain Communication
Sign Up to like & getrecommendations! Published in 2024 at "IEEE Access"
DOI: 10.1109/access.2024.3390682
Abstract: This paper presents a new OFDM based modulation scheme for communication in doubly dispersive channels. We call this Delay-Doppler OFDM (DD-OFDM). Our waveform has the same sparse-channel benefits as orthogonal-time-frequency-space (OTFS) modulation, while offering advantages… read more here.
Keywords: ofdm based; doppler; communication; ofdm ... See more keywords
A Semidefinite Relaxation Solution for Time Delay and Doppler Shift Localization Considering Sensor Location Errors and Its Bias Reduction Scheme
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Internet of Things Journal"
DOI: 10.1109/jiot.2022.3194897
Abstract: This article develops a robust source localization method using time delay and Doppler shift measurements, where the sensor motion effect accompanied by sensor location errors cannot be ignored. We begin by transforming the time delay… read more here.
Keywords: time delay; doppler shift; bias reduction; location errors ... See more keywords
Delay Doppler Division Multiple Access Resource Allocation in Aircraft Network
Sign Up to like & getrecommendations! Published in 2024 at "IEEE Internet of Things Journal"
DOI: 10.1109/jiot.2024.3352030
Abstract: Aircraft network has a wide range of applications and plays an important role in various fields. However, the wide distribution and high-dynamic motion of aircraft pose challenges to the multiple access management in aircraft networks.… read more here.
Keywords: aircraft; delay doppler; multiple access; aircraft network ... See more keywords
Statistical Delay-Doppler-Prior (SD2P) Enhanced SC-VBI Framework for Low-Complexity OTFS-Based LEO Channel Estimation
Sign Up to like & getrecommendations! Published in 2025 at "IEEE Internet of Things Journal"
DOI: 10.1109/jiot.2025.3586856
Abstract: This article addresses the critical challenges of fractional delay and Doppler effects in low-Earth orbit (LEO) satellite orthogonal time–frequency space (OTFS) systems, where conventional channel estimation methods suffer from high complexity and inadequate prior utilization.… read more here.
Keywords: doppler; complexity; delay doppler; channel estimation ... See more keywords
Uplink-Aided High Mobility Downlink Channel Estimation Over Massive MIMO-OTFS System
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Journal on Selected Areas in Communications"
DOI: 10.1109/jsac.2020.3000884
Abstract: Although it is often used in the orthogonal frequency division multiplexing (OFDM) systems, application of massive multiple-input multiple-output (MIMO) over the orthogonal time frequency space (OTFS) modulation could suffer from enormous training overhead in high… read more here.
Keywords: channel estimation; delay doppler; massive mimo; doppler ... See more keywords
Deep Learning-Based Soil Moisture Retrieval in CONUS Using CYGNSS Delay–Doppler Maps
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing"
DOI: 10.1109/jstars.2022.3196658
Abstract: National Aeronautics and Space Administration's Cyclone Global Navigation Satellite System (CYGNSS) mission has gained significant attention within the land remote sensing community for estimating soil moisture (SM) by using the Global Navigation System Reflectometry (GNSS-R)… read more here.
Keywords: soil moisture; doppler maps; deep learning; delay doppler ... See more keywords
Sensitivity of Delay Doppler Map in Spaceborne GNSS-R to Geophysical Variables of the Ocean
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing"
DOI: 10.1109/jstars.2022.3211876
Abstract: Global Navigation Satellite Systems reflectometry (GNSS-R) is a particular case of a multistatic radar in which the signals transmitted by navigation satellites are the signals of opportunity. These signals can be processed as a radar… read more here.
Keywords: map; doppler map; geophysical variables; geometry ... See more keywords
Trackwise Prediction of GNSS-R Delay–Doppler Maps With DDM-PredRNN Network
Sign Up to like & getrecommendations! Published in 2025 at "IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing"
DOI: 10.1109/jstars.2025.3555623
Abstract: Global navigation satellite system reflectometry (GNSS-R) is an emerging Earth observation method that utilizes reflection signals from navigation satellites for remote sensing of physical parameters, particularly in detecting ocean wind speed. However, challenges, such as… read more here.
Keywords: delay doppler; ddm predrnn; navigation; gnss ... See more keywords
Leakage Suppression in Pulse-Shaped OTFS Delay-Doppler-Pilot Channel Estimation
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Wireless Communications Letters"
DOI: 10.1109/lwc.2022.3160657
Abstract: In this letter, we propose a novel channel estimation scheme with leakage suppression for orthogonal time frequency and space (OTFS) modulation. In OTFS, data and pilot symbols are placed in the delay-Doppler (DD) domain and… read more here.
Keywords: estimation; delay doppler; channel estimation; leakage suppression ... See more keywords
OTFS-Based ISAC: How Delay Doppler Channel Estimation Assists Environment Sensing?
Sign Up to like & getrecommendations! Published in 2024 at "IEEE Wireless Communications Letters"
DOI: 10.1109/lwc.2024.3478744
Abstract: Environment sensing has become a crucial aspect of next-generation wireless networks. The orthogonal time-frequency space (OTFS) waveform, a recently introduced technique that harnesses the delay-Doppler domain for information transmission, exhibits significant potential to uncover the… read more here.
Keywords: based isac; environment sensing; delay doppler; otfs based ... See more keywords