Results 51 to 60 of about 1,468 (180)

Comparative Analysis of Audio Processing Techniques on Doppler Radar Signature of Human Walking Motion Using CNN Models

Sensors, 2023
Artificial intelligence (AI) radar technology offers several advantages over other technologies, including low cost, privacy assurance, high accuracy, and environmental resilience.
Minh-Khue Ha, Thien-Luan Phan, Duc Hoang Ha Nguyen, Nguyen Hoang Quan, Ngoc-Quan Ha-Phan, Congo Tak Shing Ching, Nguyen Van Hieu   +6 more
doaj   +1 more source

Recent Advances in Stimulated Brillouin Scattering in Integrated Photonics

Advanced Physics Research, Volume 5, Issue 7, July 2026.
This review systematically surveys recent advances in stimulated Brillouin scattering (SBS) within integrated photonics. It begins by elucidating the fundamental mechanisms of stimulated coupling between photons and acoustic phonons in nanoscale waveguides, enhanced by the photoelastic and moving boundary effects.
Songyue Liu, Qi Lu, Pan Hu, Yuan Zhong, Yu He, Yaojing Zhang, Young‐Ik Sohn, Yikai Su, Lu Sun   +8 more
wiley   +1 more source

Micro-Doppler Signature Analysis for Space Domain Awareness Using VHF Radar

Remote Sensing
The large quantity of resident space objects orbiting Earth poses a threat to safety and efficient operations in space. Radar sensors are well suited to detecting objects in space including decommissioned satellites and debris, whereas the more commonly ...
Emma Heading, Si Tran Nguyen, David Holdsworth, Iain M. Reid   +3 more
doaj   +1 more source

Radar micro-Doppler for loudspeaker analysis: an industrial process application [PDF]

International Conference on Radar Systems (Radar 2017), 2017
In the last decades a strong interest has developed on radar micro-Doppler analysis targeting applications in a number of sectors including defence, bio-medical and automotive. This paper investigates for the first time the use of radar micro- Doppler for loudspeaker analysis.
Izzo, A., Ausiello, L., Clemente, C., Soraghan, J.J.   +3 more
openaire   +2 more sources

Semisupervised Human Activity Recognition With Radar Micro-Doppler Signatures

IEEE Transactions on Geoscience and Remote Sensing, 2022
Human activity recognition (HAR) plays a vital role in many applications, such as surveillance, in-home monitoring, and health care. Portable radar sensor has been increasingly used in HAR systems in combination with deep learning (DL). However, it is both difficult and time-consuming to obtain a large-scale radar dataset with reliable labels ...
Xinyu Li 0007, Yuan He 0009, Francesco Fioranelli, Xiaojun Jing   +3 more
openaire   +4 more sources

Multi‐LiDAR Observations of Coastal Atmospheric Duct Evolution in Hampton Roads

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 12, 28 June 2026.
Abstract To better understand the influence of atmospheric ducts on radio frequency (RF) operations, continuous high‐resolution observations of temperature and water vapor are essential. Hampton University's (HU) 48‐inch Raman‐Mie LiDAR provides such measurements through rotational and vibrational Raman techniques, enabling detailed monitoring of ...
Jia Su, Melvin A. Felton Jr., Ruben Delgado, David A. Ligon, Deryk James   +4 more
wiley   +1 more source

Micro-Doppler Effect of Extended Streamlined Targets Based on Sliding Scattering Centre Model [PDF]

Radioengineering, 2016
The scattering center of extended streamlined targets can slide when the direction of radiation is changed. The sliding scattering center has influence on the micro-Doppler effect of micro-motion of the extended streamlined target.
Bo Tang
doaj  

Decomposition of Multicomponent Micro-Doppler Signals Based on HHT-AMD

Applied Sciences, 2018
Micro-Doppler signals analysis has been emerging as an important topic in target identification, and relative research has been focusing on features extraction and separation of the radar signals.
Wenchao Li, Gangyao Kuang, Boli Xiong
doaj   +1 more source

Radar micro-Doppler feature extraction using the spectrogram and the cepstrogram [PDF]

2014 11th European Radar Conference, 2014
The radar micro-Doppler signature of a target is determined by parts of the target moving or rotating in addition to the main body motion. The relative motion of parts is characteristic for different classes of targets, e.g. the flapping motion of a bird's wings vs. the spinning of propeller blades.
Harmanny, R.I.A., Wit, J.J.M. de, Prémel Cabic, G.   +2 more
openaire   +2 more sources

A Doppler aliasing free micro-motion parameter estimation method in the terahertz band

EURASIP Journal on Wireless Communications and Networking, 2017
Micro-Doppler, induced by micro-motion of targets, is an important characteristic for target recognition once extracted via parameter estimation. However, micro-Doppler is usually too significant to result in aliasing in the terahertz band.
Qi Yang, Bin Deng, Hongqiang Wang, Yuliang Qin   +3 more
doaj   +1 more source