Results 21 to 30 of about 65,405 (227)

The Doppler Characteristics of Sea Echoes Acquired by Motion Radar

open access: yesRemote Sensing, 2023
The Doppler characteristics of sea surface echoes reflect the time-varying characteristics of the sea surface and can be used to retrieve ocean dynamic parameters and detect targets.
Pengbo Du   +6 more
doaj   +1 more source

Numerical Study on the Feasibility of a 24 GHz ISM-Band Doppler Radar Antenna for Near-Field Sensing of Human Respiration in Electromagnetic Aspects

open access: yesApplied Sciences, 2020
The feasibility study of a 24 GHz industrial, scientific, and medical (ISM) band Doppler radar antenna in electromagnetic aspects is numerically performed for near-field sensing of human respiration.
Seungyong Park   +4 more
doaj   +1 more source

Multi-Doppler resolution automotive radar [PDF]

open access: yes2017 25th European Signal Processing Conference (EUSIPCO), 2017
Publication in the conference proceedings of EUSIPCO, Kos island, Greece ...
Bialer, Oded, Kolpinizki, Sammy
openaire   +1 more source

Airborne Radar Staggered PRF Coherent Processing Method for Down-Looking Target Detection

open access: yesRemote Sensing, 2023
Airborne radar plays a crucial role in detecting aerial targets, but its detection capability can be significantly affected by strong ground clutter when operating in down-looking mode.
Xiping Sun   +4 more
doaj   +1 more source

MIMO Radar Ambiguity Properties and Optimization Using Frequency-Hopping Waveforms [PDF]

open access: yes, 2008
The concept of multiple-input multiple-output (MIMO) radars has drawn considerable attention recently. Unlike the traditional single-input multiple-output (SIMO) radar which emits coherent waveforms to form a focused beam, the MIMO radar can transmit ...
Chen, Chun-Yang, Vaidyanathan, P. P.
core   +2 more sources

Doppler radar calibration system

open access: yesIEEE Aerospace and Electronic Systems Magazine, 2012
The developed prototype has proved to be a useful instrument for the calibration of Doppler/range radars. The system includes innovative solutions for the generation of Doppler and distances with high precision. It is able to generate accurate Doppler shifts with a resolution higher than 4·10 -3 Hz and speeds with an accuracy of around ±2.76 ppm - from
Fernández Fernández, Jean Raphael Olivier   +5 more
openaire   +3 more sources

Monitoring and Analysis of Respiratory Patterns Using Microwave Doppler Radar

open access: yesIEEE Journal of Translational Engineering in Health and Medicine, 2014
Noncontact detection characteristic of Doppler radar provides an unobtrusive means of respiration detection and monitoring. This avoids additional preparations, such as physical sensor attachment or special clothing, which can be useful for certain ...
Yee Siong Lee   +3 more
doaj   +1 more source

Foot Gesture Recognition Using High-Compression Radar Signature Image and Deep Learning

open access: yesSensors, 2021
Recently, Doppler radar-based foot gesture recognition has attracted attention as a hands-free tool. Doppler radar-based recognition for various foot gestures is still very challenging. So far, no studies have yet dealt deeply with recognition of various
Seungeon Song   +3 more
doaj   +1 more source

Challenges with Regard to Unmanned Aerial Systems (UASs) Measurement of River Surface Velocity Using Doppler Radar

open access: yesRemote Sensing, 2022
Surface velocity is traditionally measured with in situ techniques such as velocity probes (in shallow rivers) or Acoustic Doppler Current Profilers (in deeper water). In the last years, researchers have developed remote sensing techniques, both optical (
Filippo Bandini   +5 more
doaj   +1 more source

Noise radar range doppler imaging via 2D generalized smoothed‐l0

open access: yesElectronics Letters, 2021
This paper presents an algorithm to enhance the range‐Doppler imaging performance for noise radar. Traditional matched filtering based method suffers from high range and Doppler sidelobes, which makes the weak targets overwhelmed by the sidelobes of ...
Xingyu Lu, Hong Gu, Weimin Su
doaj   +1 more source

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