Results 21 to 30 of about 12,544 (245)

On the Analysis of PM/FM Noise Radar Waveforms Considering Modulating Signals with Varied Stochastic Properties

open access: yesSensors, 2021
Noise Radar technology is the general term used to describe radar systems that employ realizations of a given stochastic process as transmit waveforms. Originally, carriers modulated in amplitude by a Gaussian random signal, derived from a hardware noise
Leandro Pralon   +3 more
doaj   +1 more source

Radar Signal Modulation Recognition Based on Sep-ResNet

open access: yesSensors, 2021
With the development of signal processing technology and the use of new radar systems, signal aliasing and electronic interference have occurred in space.
Yongjiang Mao   +2 more
doaj   +1 more source

Chirp Signals and Noisy Waveforms for Solid-State Surveillance Radars

open access: yesAerospace, 2017
Since the advent of “pulse compression” radar, the “chirp” signal (Linear Frequency Modulation, LFM) has been one of the most widely used radar waveforms.
Gaspare Galati   +2 more
doaj   +1 more source

Automatic LPI Radar Signal Sensing Method Using Visibility Graphs

open access: yesIEEE Access, 2020
The issue of the low probability of intercept (LPI) radar signal sensing has received considerable attention. Furthermore, the development of military technology further increased demand for it in future electronic warfare (EW).
Tao Wan   +4 more
doaj   +1 more source

Incorporation of Digital Modulation into Vital Sign Detection and Gesture Recognition Using Multimode Radar Systems

open access: yesSensors, 2023
The incorporation of digital modulation into radar systems poses various challenges in the field of radar design, but it also offers a potential solution to the shrinking availability of low-noise operating environments as the number of radar ...
Michael C. Brown, Changzhi Li
doaj   +1 more source

Simultaneous User Localization and Identification Using Leaky-Wave Antennas and Backscattering Communications

open access: yesIEEE Access, 2022
High-speed detection and identification of mobile terminals located in the vicinity of highly directive base stations is essential for future mm-wave communication systems.
Kyriakos Neophytou   +5 more
doaj   +1 more source

SSA-VMD for UWB Radar Sensor Vital Sign Extraction

open access: yesSensors, 2023
The combination of advanced radar sensor technology and smart grid has broad prospects. It is meaningful to monitor the respiration and heartbeat of grid employees under resting state through radar sensors to ensure that they are in a healthy working ...
Huimin Yu, Wenjun Huang, Baoqiang Du
doaj   +1 more source

Remote Measurement of Short-Term Heart Rate With Narrow Beam Millimeter Wave Radar

open access: yesIEEE Access, 2021
Heart rate measurement technology based on Doppler radar can monitor heart rate in real time without direct contact with the skin, which possesses the advantages of convenient operation, comfort and insensitivity to the skin state.
Wenjie Lv   +5 more
doaj   +1 more source

A fully integrated fully differential low-noise amplifier for short range automotive radar using a SiGe:C BiCMOS Technology [PDF]

open access: yes2007 European Microwave Integrated Circuit Conference, 2007
A fully integrated fully differential low-noise amplifier for 79 GHz short range radar applications using a highspeed SiGe:C BiCMOS technology is presented. The integrated circuit uses thin-film microstrip lines and exhibits compact design (530 times 690 mum2), low power consumption (90 mW at 3 V supply voltage), high gain (13 dB gain at 81 GHz), good ...
Chartier, Sébastien   +5 more
openaire   +2 more sources

A Cloud Detection Method for Vertically Pointing Millimeter-Wavelength Cloud Radar

open access: yesSensors, 2023
A new method using three dimensions of cloud continuity, including range dimension, Doppler dimension, and time dimension, is proposed to discriminate cloud from noise and detect more weak cloud signals in vertically pointing millimeter-wave cloud radar ...
Hai Lin, Jie Wang, Junxiang Ge
doaj   +1 more source

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