Results 81 to 90 of about 707,332 (306)
Doppler-aware Odometry from FMCW Scanning Radar [PDF]
arXiv, 2023 This work explores Doppler information from a millimetre-Wave (mm-W) Frequency-Modulated Continuous-Wave (FMCW) scanning radar to make odometry estimation more robust and accurate. Firstly, doppler information is added to the scan masking process to enhance correlative scan matching.
arxiv
Noncontact Physiological Dynamics Detection Using Low-power Digital-IF Doppler Radar
IEEE Transactions on Instrumentation and Measurement, 2017 The instantaneous vital sign rates, which are related to physiological dynamics, are important indicators of human health condition. This paper presents a noncontact way to measure the human instantaneous vital signs using digital-intermediate frequency (
Heng Zhao +5 more
semanticscholar +1 more source
Quantifying nocturnal bird migration using acoustics: opportunities and challenges
Remote Sensing in Ecology and Conservation, EarlyView.In this study, we explore three migration intensity measures derived from acoustic recordings, that is, bird call and passage rates, and species diversity, for their usefulness in quantifying nocturnal bird migration rates at three taxonomic levels: birds, passerines and thrushes, as estimated by a dedicated bird radar. Bird passage rates, that is, the
Siméon Béasse +3 more
wiley +1 more source
Radar detectability of light aircraft micro‐Doppler modulation
IET Radar, Sonar & NavigationThe critical role of specifying micro‐Doppler mode performance in the modelling and development of modern radar systems is investigated. The authors focus on the detection of micro‐Doppler modulation from light aircraft, analysing data from eight ...
Robert John Berndt +3 more
doaj +1 more source
IEEE Access, 2016 We investigate the feasibility of estimating the total energy expenditure (TEE) of a human for walking/running activities with micro-Doppler signatures. Doppler radar can capture micro-Doppler signatures produced from limb motions when a human moves.
Youngwook Kim +2 more
doaj +1 more source
Range-Doppler Information and Doppler Scattering Information in Multipulse Radar [PDF]
arXiv, 2020 In this paper, the general radar measurement probfilems of determining range, Doppler frequency and scatteringproperties parameters are investigated from the viewpoint of Shannons information theory. We adopt the mutual information to evaluate the accuracy of the classification and estimation.
arxiv
Advancing the mapping of vegetation structure in savannas using Sentinel‐1 imagery
Remote Sensing in Ecology and Conservation, EarlyView.As vegetation structure monitoring is important for the understanding and conservation of savanna ecosystems, we explored the utility of C‐band synthetic aperture radar imagery for mapping both grassland and woody vegetation structure in the Greater Serengeti‐Mara Ecosystem.
Vera Thijssen +3 more
wiley +1 more source
Sensors, 2018 Different from microwave radar, laser radar could be more sensitive to the micro-Doppler (m-D) effect due to its wave length. This limits the application of conventional methods, such as time–frequency based approach, since the processing needs a ...
Mingzhe Zhu +4 more
doaj +1 more source
Signal Identification and Entrainment for Practical FMCW Radar Spoofing Attacks [PDF]
arXiv, 2023 This paper proposes a method of passively estimating the parameters of frequency-modulated-continuous-wave (FMCW) radar signals with a wide range of structural parameter values and analyzes how a malicious actor could employ such estimates to track and spoof a target radar.
arxiv
A study of the 23 October 2022 southern England damaging MCS
Weather, EarlyView.During the afternoon of 23 October 2022, a mesoscale convective system (MCS) developed and intensified over the English Channel and tracked north‐northeastward into southern England, producing widespread damaging winds and at least three moderate to strong tornadoes in Hampshire.
Kenneth Pryor +3 more
wiley +1 more source