Results 51 to 60 of about 69,955 (288)
International Journal of Advanced Robotic Systems, 2021 The study investigated object detection and classification based on both Doppler radar spectrograms and vision images using two deep convolutional neural networks.
Jnana Sai Abhishek Varma Gokaraju +3 more
doaj +1 more source
Fall Detection Based on Deep Learning Fusing Ultrawideband Radar Spectrograms
Leida xuebao, 2023 Compared with narrowband Doppler radar, ultrawideband radar can simultaneously acquire the range and Doppler information of targets, which is more beneficial for behavior recognition.
Mi HE, Qinwen PING, Ran DAI
doaj +1 more source
Monostatic and Bistatic Radar Measurements of Birds and Micro-drone [PDF]
, 2016 This paper analyses the experimental results from recent monostatic and bistatic radar measurements of multiple birds as well as a quadcopter micro-drone. The radar system deployed for these measurements was the UCL developed NetRAD system.
Fioranelli, Francesco +3 more
core +2 more sources
Exploring the application of ferroelectret nanogenerators in medical engineering
FlexMat, EarlyView.Abstract Flexible devices derived from piezoelectric materials have gained considerable attention due to their exceptional biocompatibility. Among these, ferroelectret nanogenerators (FENG) is a novel type of flexible piezoelectric device that integrates self‐powering, actuation, and sensing capabilities.
Xianfa Cai +4 more
wiley +1 more source
Applied Sciences, 2022 A new Doppler radar using millimeter-waves in the Ka-band, named the “dual-comb Doppler reflectometer”, has been developed to measure the turbulence intensity and its velocity in high-temperature plasmas. For the realization of a fusion power generation,
Tokihiko Tokuzawa +6 more
doaj +1 more source
Optical-radar imaging of scale models for studies in asteroid astronomy [PDF]
, 1995 During the past five years, delay-Doppler radar has become the primary technique for studying the structure of Earth-crossing asteroids. None of these objects has yet been visited by spacecraft, so ground-truth test cases are lacking. A laboratory system
Andrews, A. K. +2 more
core +1 more source
iMeta, EarlyView.A single‐cell atlas was established to reveal the molecular characteristics of early gastric cancer (EGC). In combination with organoids, animal models, and clinical samples, it was found that subpopulations such as pit mucous‐like cell (PMC‐like), proliferating cell (PC), CH25H+ CD4+ T cell, IL‐33+ endothelial cell, and ADAMTSL2+ endothelial cell are ...
Li Zhou +15 more
wiley +1 more source
Study on Weather Radar Echo Data Generation Based on DCGAN
IEEE Access, 2019 Doppler weather radar can detect the changes in precipitation clouds for short-term forecasting. In the process of development of Doppler weather radar and weather identification algorithms, some typical Doppler weather radar base data corresponding to ...
Haijiang Wang +4 more
doaj +1 more source
The Incidence and Cross Methods for Efficient Radar Detection
, 2013 The designation of the radar system is to detect the position and velocity of targets around us. The radar transmits a waveform, which is reflected back from the targets, and echo waveform is received.
Fish, Alexander, Gurevich, Shamgar
core +1 more source
Quarterly Journal of the Royal Meteorological Society, EarlyView.Two archetypes of tornadic quasi‐linear convective systems with and without horizontal shearing instability. Modeled surface precipitation rates (mm ·hr$$ \cdotp \mathrm{hr} $$ −1$$ {}^{-1} $$; colored) and absolute vorticity (contours every 3×10−3$$ 3\times 1{0}^{-3} $$ s−1$$ {}^{-1} $$; dashed when negative) after vortexgenesis from the model domain.
Ty J. Buckingham +3 more
wiley +1 more source