Results 21 to 30 of about 17,770 (216)

Research on ultra wideband radar life detection technology

open access: yesGong-kuang zidonghua, 2023
Ultra wideband (UWB) radar life detection technology has the advantages of low power consumption, good penetration, and high confidentiality. It is beneficial for improving the survival rate of trapped personnel after disasters. This paper systematically
ZHAO Youxin   +4 more
doaj   +1 more source

Parameter estimation of frequency shift keying radar signal intercepted by Nyquist folding receiver using periodic linear frequency modulation local oscillator

open access: yesIET Radar, Sonar & Navigation, 2021
Frequency shift keying (FSK) signal has been widely used in modern radar systems. To intercept the FSK radar signal with a high interception probability, radar reconnaissance receiver should have an ultra‐wideband receiving ability.
Zhaoyang Qiu   +5 more
doaj   +1 more source

OPERAnet, a multimodal activity recognition dataset acquired from radio frequency and vision-based sensors

open access: yesScientific Data, 2022
Measurement(s) Human physical activity • Human location Technology Type(s) WiFi sensing device • ultra-wideband impulse radar • passive WiFi radar • Kinect motion sensor Factor Type(s) Human location • Human physical activity • Room geometry ...
Mohammud J. Bocus   +10 more
doaj   +1 more source

UWB-HA4D-1.0: An Ultra-wideband Radar Human Activity 4D Imaging Dataset

open access: yesLeida xuebao, 2022
A radar human behavior perception system has penetration detection ability, which gives it a wide application prospect in the fields of security, rescue, medical treatment, and so on.
Tian JIN   +6 more
doaj   +1 more source

Target Localization and Tracking Using an Ultra-Wideband Chaotic Radar With Wireless Synchronization Command

open access: yesIEEE Access, 2021
An ultra-wideband chaotic radar with wireless synchronization command is proposed and experimentally demonstrated for target localization and tracking. This radar uses the wideband chaotic pulse position modulation (CPPM) signal as the probe signal and ...
Bingjie Wang   +7 more
doaj   +1 more source

Signal Processing Algorithm for Monopulse Noise Noncoherent Wideband Helicopter Altitude Radar

open access: yesComputation, 2022
Radio altimeters are an important component of modern helicopter on-board systems. These devices currently involve the use of narrowband deterministic signals, that limits their potential technical characteristics.
Valeriy Volosyuk   +7 more
doaj   +1 more source

Design of an Ultra-wideband Pseudo Random Coded MIMO Radar Based on Radio Frequency Switches

open access: yesLeida xuebao, 2017
A Multiple-Input Multiple-Output (MIMO) ultra-wideband radar can detect the range and azimuth information of targets in real time. It is widely used for geological surveys, life rescue, through-wall tracking, and other military or civil fields.
Su Hai   +4 more
doaj   +1 more source

Ultra-Wideband (UWB) Systems in Biomedical Sensing

open access: yesSensors, 2022
The extremely low power transmission levels of ultra-wideband (UWB) technology, alongside its advantageously large bandwidth, make it a prime candidate for being used in numerous healthcare scenarios, which require short-range high-data-rate ...
Gianluigi Tiberi, Mohammad Ghavami
doaj   +1 more source

AN ULTRA WIDEBAND IMPULSE OPTOELECTRONIC RADAR: RUGBI [PDF]

open access: yesProgress In Electromagnetics Research B, 2009
An ultra wideband radar system based on a coherent emission of an ultra-wideband antenna array using photoconductive switching devices is proposed. The triggering process is obtained by the excitation of semiconductor samples in linear mode using a picosecond laser source.
Lalande, Michèle   +11 more
openaire   +2 more sources

Range-Point Migration-Based Image Expansion Method Exploiting Fully Polarimetric Data for UWB Short-Range Radar [PDF]

open access: yes, 2018
Ultrawideband radar with high-range resolution is a promising technology for use in short-range 3-D imaging applications, in which optical cameras are not applicable. One of the most efficient 3-D imaging methods is the range-point migration (RPM) method,
Ayumi Yamaryo   +3 more
core   +2 more sources

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