Results 61 to 70 of about 10,887 (225)

Computationally Efficient Pruning Before Training Scheme for SNN‐Based Radar Gesture Recognition

open access: yesElectronics Letters, Volume 62, Issue 1, January/December 2026.
In this work, we propose a Spike Timing‐driven Pruning before Training (ST‐PBT) method for radar‐based human gesture recognition. The proposed ST‐PBT performs a single‐shot pruning at the model initialisation, avoiding the expensive computational cost and compression time incurred in the model pre‐training. Furthermore, the ST‐PBT introduces a gradient‐
Mengjun Zhang   +3 more
wiley   +1 more source

Selecting Target Range with Accurate Vital Sign Using Spatial Phase Coherency of FMCW Radar

open access: yesApplied Sciences, 2021
Respiration and heartbeat are basic indicators of the physiological state of human beings. Frequency-modulated continuous wave (FMCW) radar can sense micro-displacement in the human body surface without contact, and is used for vital-sign (respiration ...
Ho-Ik Choi   +3 more
doaj   +1 more source

Experimental Results of a 3D Millimeter-Wave Compressive-Reflector-Antenna Imaging System

open access: yes, 2018
This letter presents the first experimental results of our three-dimensional (3D) millimeter-wave (mm-wave) Compressive-Reflector-Antenna (CRA) imaging system.
Bisulco, A.   +7 more
core   +1 more source

Joint MobileViT and Knowledge Distillation Network for Hand Gesture Recognition via mmWave Radar

open access: yesIET Signal Processing, Volume 2026, Issue 1, 2026.
Hand gesture recognition using mmWave radar has emerged as a promising technology for human–computer interaction (HCI), smart home systems, and the Internet of Things (IoT). However, the practical application of this technology is often constrained by the high computational complexity and significant storage demands of contemporary deep neural networks,
Xiangqun Zhang   +6 more
wiley   +1 more source

Microwave Imaging for Breast Cancer Detection - A Comparison Between VNA and FMCW Radar

open access: yesIEEE Journal of Microwaves
This paper presents the comparison between microwave imaging for breast cancer detection using a vector network analyzer (VNA) and a frequency-modulated continuous wave (FMCW) radar system.
Martin Maier   +6 more
doaj   +1 more source

Short-range wideband FMCW radar for millimetric displacement measurements

open access: yes, 2014
International audienceThe frequency modulated continuous wave (FMCW) radar is an alternative to the pulse radar when the distance to the target is short.
Anghel, Andrei   +4 more
core   +3 more sources

Precise control of broadband frequency chirps using optoelectronic feedback [PDF]

open access: yes, 2009
We demonstrate the generation of wideband frequency sweeps using a semiconductor laser in an optoelectronic feedback loop. The rate and shape of the optical frequency sweep is locked to and determined by the frequency of a reference electronic signal ...
Leyva, Victor   +4 more
core   +1 more source

A Linear Active Rampart Antenna Array With Two‐Dimensional Beam‐Scanning Capability for FMCW Radar Applications

open access: yesInternational Journal of Antennas and Propagation, Volume 2026, Issue 1, 2026.
A novel linear active rampart array that is able to steer in the azimuth plane through frequency sweeping and in the elevation plane through phase shifting has been developed. The presented system uses eight active elements and two parasitic ones to ensure consistent radiation patterns.
Tudor Ioan Popa   +4 more
wiley   +1 more source

Radar-on-Lidar: metric radar localization on prior lidar maps

open access: yes, 2020
Radar and lidar, provided by two different range sensors, each has pros and cons of various perception tasks on mobile robots or autonomous driving. In this paper, a Monte Carlo system is used to localize the robot with a rotating radar sensor on 2D ...
Tang, Li   +3 more
core   +1 more source

New Design Antenna and Optimization of S‐Band Radar Networks Using CSRR Technology

open access: yesInternational Journal of RF and Microwave Computer-Aided Engineering, Volume 2026, Issue 1, 2026.
In this paper, a new design and analysis of a highly compact metamaterial antenna array for radar applications operating in the S‐band (2–4 GHz) is presented. To enhance the electrical and radiation characteristics of the proposed antenna, a slot was introduced into the radiating element, and a novel power divider was employed.
Hamza Ben Hamadi   +5 more
wiley   +1 more source

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