Results 61 to 70 of about 22,466 (253)

Time‐Stretched Interferometric LiDAR with Dispersive Wavenumber‐to‐Time Range Encoding

Laser &Photonics Reviews, EarlyView.
We present a time‐stretched interferometric LiDAR that directly encodes distance into time‐domain interference signals. Operating at 5 MHz with only millimeter‐level coherence length, the system measures up to 12 m with centimeter precision and resolution, achieving high‐speed 3D imaging and dynamic target detection without FFT processing or long ...
Dahun Jung, Gyeong Hun Kim, Seongjin Bak, Jaeheung Kim, Sang Min Park, Wontae Choe, Chang‐Seok Kim, Hwidon Lee   +7 more
wiley   +1 more source

Multi-Band FMCW Signal Generator with a Tunable Sweep-Frequency Bandwidth and Inter-Band Interval

Photonics
In this work, we experimentally demonstrate a scheme for generating a multi-band FMCW signal with a tunable sweep bandwidth and inter-band interval. For such a scheme, an original FMCW signal is first acquired by directly current-modulating a master ...
Md Mamun-Ur-Rashid, Qiupin Wang, Xin Tong, Pu Ou, Guangqiong Xia, Zhengmao Wu   +5 more
doaj   +1 more source

Analisis Pengolahan Sinyal Radar Frequency Modulated Continuous Wave untuk Deteksi Target

Jurnal Nasional Teknik Elektro, 2013
On this report has been simulated signal generation Frequency Modulated Continuous Wave (FMCW) radar to determine the distance and speed of the target. This design FMCW radar system for traffic management applications that monitor ground traffic.
Siska Aulia, Suhartono Tjondronegoro, Rahmadi Kurnia   +2 more
doaj   +1 more source

Portable Radar for Noncontact Heart Rate Monitoring and Estrus Detection in Dairy Cows

IEEJ Transactions on Electrical and Electronic Engineering, EarlyView.
This study introduces a portable radar system for real‐time monitoring of respiratory and heart rates in dairy cows. It uses millimeter‐wave Frequency Modulated Continuous Wave (FMCW) radar to perform noncontact physiological sensing, reducing behavioral disturbance. The radar system's design prioritizes portability, cost‐effectiveness, and robustness,
Yingxiu Li, Ranran Wang, Fuyang Tian, Yudao Li, Zhuolin Wang, Yuxin Yu, Liping Ma, Xin Lu   +7 more
wiley   +1 more source

Experimental Comparison of IR-UWB Radar and FMCW Radar for Vital Signs

Sensors, 2020
In this paper, we compare the performances of impulse radio ultra-wideband (IR-UWB) and frequency modulation continuous wave (FMCW) radars in measuring noncontact vital signs such as respiration rate and heart rate. These two type radars have been widely
Dingyang Wang, Sungwon Yoo, Sung Ho Cho
doaj   +1 more source

Micro-Doppler Based Human-Robot Classification Using Ensemble and Deep Learning Approaches

, 2018
Radar sensors can be used for analyzing the induced frequency shifts due to micro-motions in both range and velocity dimensions identified as micro-Doppler ($\boldsymbol{\mu}$-D) and micro-Range ($\boldsymbol{\mu}$-R), respectively.
Abdulatif, Sherif, Aziz, Fady, Kleiner, Bernhard, Schneider, Urs, Wei, Qian   +4 more
core   +1 more source

Gait Analysis of Horses for Lameness Detection with Radar Sensors [PDF]

, 2017
This paper presents the preliminary investigation of the use of radar signatures to detect and assess lameness of horses and its severity. Radar sensors in this context can provide attractive contactless sensing capabilities, as a complementary or ...
Fioranelli, F., Le Kernec, J., Marshall, J.F., Shrestha, A., Voute, L.   +4 more
core   +1 more source

Low-Resolution Imaging FMCW Lidar

, 2022
We demonstrate the imaging capability of a frequency modulated continuous wave lidar based on a fiber bundle. The lidar constructs velocity and range images for hard targets at a rate of 60 Hz. The sensing range is up to 30 m with 20 mW of output power. The instrument employs custom electronics with seven parallel heterodyne receivers.
Gazizov, Iskander, Zenevich, Sergei, Rodin, Alexander   +2 more
openaire   +2 more sources

Characterizing trade‐wind shallow convection regimes in the open sea with a synergy of ship‐based vertical profiling observations

Quarterly Journal of the Royal Meteorological Society, Volume 152, Issue 774, January 2026 Part A.
We use active remote sensing from a ship during the EUREC4$$ {\mathrm{EUREC}}^4 $$A campaign to characterize the environment before, during, and after precipitation in shallow convection. (1) Shallow clouds barely precipitate (only virga). Congestus clouds generate precipitation, occurring less often in the afternoon but with higher cloud fractions. (2)
Claudia Acquistapace, Sabrina Schnitt, Sibylle Krause, Nils Risse, Diego Lange, Dwaipayan Chatterjee   +5 more
wiley   +1 more source

Compressive Signal Processing for Estimating Range-Velocity-AoA in FMCW Radar Applications

IEEE Access
Frequency-modulated continuous wave (FMCW) radars are known to accurately estimate the parameters of targets with low-cost and low-power transceiver systems.
Eny Sukani Rahayu, Dyonisius Dony Ariananda, Risanuri Hidayat, Gabriel Daniel   +3 more
doaj   +1 more source