Results 31 to 40 of about 3,039 (221)

Extended Noise Analysis Model of CW-type Radar Sensors with IQ Down-Conversion [PDF]

open access: yesRadioengineering, 2018
CW-type structures belong to the most frequently employed radars, especially in a form of small sensors used, for example, in security applications or automotive industry.
V. Jenik, P. Hudec, P. Panek
doaj  

Doppler Factor in the Omega-k Algorithm for Pulsed and Continuous Wave Synthetic Aperture Radar Raw Data Processing

open access: yesApplied Sciences, 2023
Synthetic aperture radar (SAR) raw data do not have a direct application; therefore, SAR raw signal processing algorithms are used to generate images that are used for various required applications.
Jhohan Jancco-Chara   +4 more
doaj   +1 more source

Design of Dual-Mode Local Oscillators Using CMOS Technology for Motion Detection Sensors

open access: yesSensors, 2018
Recently, studies have been actively carried out to implement motion detecting sensors by applying radar techniques. Doppler radar or frequency-modulated continuous wave (FMCW) radar are mainly used, but each type has drawbacks.
Keum-Won Ha   +3 more
doaj   +1 more source

SFCW Radar with an Integrated Static Target Echo Cancellation System

open access: yesSensors, 2021
Continuous Wave (CW) radars systems, especially air-coupled Ground-Penetrating Radar (GPR) or Through-Wall Imaging Radar (TWIR) systems, echo signals reflected from a stationary target with high energy, which may cause receiver saturation. Another effect
Danijel Šipoš, Dušan Gleich
doaj   +1 more source

Neural-Network-Based Target Classification and Range Detection by CW MMW Radar

open access: yesRemote Sensing, 2023
This study presents a reliable classification of walking pedestrians and animals using a radar operating in the millimeter waves (mmW) regime. In addition to the defined targets, additional targets were added in an attempt to fool the radar and to ...
Yair Richter, Nezah Balal, Yosef Pinhasi
doaj   +1 more source

Spatially Separated Redox Centers in One‐Dimensional Sp2‐Carbon Covalent Organic Frameworks Enable Synergistic Photocatalytic Palladium Recovery and Bisphenol A Mineralization

open access: yesAdvanced Science, EarlyView.
A one‐dimensional sp2‐carbon covalent organic framework with spatially segregated redox centers integrates a dual photosensitizing system and a cationic interface for synergistic photocatalysis. The material achieves exceptional palladium recovery (1749 mg g−1) and bisphenol A mineralization (0.1710 min−1) without sacrificial agents, demonstrating ...
Yi‐Ru Chen   +9 more
wiley   +1 more source

Vital Sign Detection during Large-Scale and Fast Body Movements Based on an Adaptive Noise Cancellation Algorithm Using a Single Doppler Radar Sensor

open access: yesSensors, 2020
The non-contact detection of human vital signs (i.e., respiration rate (RR) and heartbeat rate (HR)) using a continuous-wave (CW) Doppler radar sensor has great potential for intensive care monitoring, home healthcare, etc.
Zi-Kai Yang   +3 more
doaj   +1 more source

PancDS in Real‐World Practice: A Prospective Multicenter Validation of a Clinical Decision‐Support System Bridging Experience Gaps in Pancreatic Lesion Diagnosis

open access: yesAdvanced Science, EarlyView.
A biomimetic artificial intelligence system, PancDS, has been developed to distinguish pancreatic ductal adenocarcinoma from mass‐forming pancreatitis by adaptively integrating clinical data, radiomics, and deep learning features. Validated across multicenter, reader‐study, and prospective settings, PancDS improves diagnostic accuracy, particularly for
Zhibo Wang   +13 more
wiley   +1 more source

MIMO FM-CW radar using beat signal averaging method [PDF]

open access: yes, 2020
This paper proposes a MIMO FM-CW radar system using beat signal averaging method for maritime surveillance application. The system operates by transmitting multiple waveform signals and receiving multiple waveform signals, before averaging the beat ...
Raja Syamsul Azmir Raja Abdullah   +7 more
core   +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

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