Results 21 to 30 of about 13,528 (217)

External modulation method for generating accurate linear optical FMCW [PDF]

open access: yes, 2017
Frequency modulation continuous wave (FMCW) lasers are key components in modern optical imaging. However, current intracavity modulation lasers do not exhibit low-frequency jitter rate and high linearity due to the inherent relaxation oscillations ...
Ge, Chunfeng   +7 more
core   +1 more source

Radar FMCW dengan IQ Demodulator Jamak untuk Deteksi Pernafasan pada Pengaruh Clutter

open access: yesJurnal Elkomika, 2020
ABSTRAK Pada pendeteksian pernafasan menggunakan sistem radar maka adanya pantulan dari sejumlah objek statis di sekitar target akan memberikan pengaruh pada hasil pendeteksian.
HANA PRATIWI   +4 more
doaj   +1 more source

FMCW rail-mounted SAR: Porting spotlight SAR imaging from MATLAB to FPGA [PDF]

open access: yes, 2014
In this work, a low-cost laptop-based radar platform derived from the MIT open courseware has been implemented. It can perform ranging, Doppler measurement and SAR imaging using MATLAB as the processor.
Gray, D., Le Kernec, J., Melnikov, A.
core   +1 more source

FMCW radar with broadband communication capability [PDF]

open access: yes2007 European Radar Conference, 2007
The use of amplitude modulation to encode information onto an FMCW radar signal is proposed in this paper. This new technique, that has been named AM-FMCW communicating radar, provides a new channel for broadband communication by reusing the radar frequencies and without introducing any distortion in the radar functionality.
Barrenechea, P.   +2 more
openaire   +1 more source

Compressed Sensing for THz FMCW Radar 3D Imaging

open access: yesComplexity, 2021
A terahertz (THz) frequency-modulated continuous wave (FMCW) imaging radar system is developed for high-resolution 3D imaging recently. Aiming at the problems of long data acquisition periods and large sample sizes for the developed imaging system, an ...
Shanshan Gu   +6 more
doaj   +1 more source

Focusing Bistatic FMCW SAR Signal by Range Migration Algorithm Based on Fresnel Approximation

open access: yesSensors, 2015
Frequency modulated continuous wave (FMCW) technique has recently been employed by synthetic aperture radar (SAR) to decrease the radar cost and volume. However, the operation range is limited by the direct energy leakage from the transmitting channel to
Yake Li, Siu O’Young
doaj   +1 more source

Dynamic Fluid Ingress Detection in Geomaterials Using K-Band Frequency Modulated Continuous Wave Radar

open access: yesIEEE Access, 2020
Frequency modulated continuous wave (FMCW) radar in the K-band has been shown to be an effective detector of geomaterial physical properties being highly sensitive to rock characteristics, particularly mineral composition and, for porous rock, variations
Jamie Blanche   +6 more
doaj   +1 more source

Low-Complexity Joint 3D Super-Resolution Estimation of Range Velocity and Angle of Multi-Targets Based on FMCW Radar

open access: yesSensors, 2022
Multi-dimensional parameters joint estimation of multi-targets is introduced to implement super-resolution sensing in range, velocity, azimuth angle, and elevation angle for frequency-modulated continuous waveform (FMCW) radar systems.
Yingchun Li   +3 more
doaj   +1 more source

Magnetic and radar sensing for multimodal remote health monitoring [PDF]

open access: yes, 2019
With the increased life expectancy and rise in health conditions related to aging, there is a need for new technologies that can routinely monitor vulnerable people, identify their daily pattern of activities and any anomaly or critical events such as ...
Fioranelli, Francesco   +4 more
core   +1 more source

Doppler-Aware Odometry from FMCW Scanning Radar

open access: yes2023 IEEE 26th International Conference on Intelligent Transportation Systems (ITSC), 2023
Accepted to ITSC ...
Rennie, F   +3 more
openaire   +3 more sources

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