Results 1 to 10 of about 3,505 (206)

Subcarrier Frequency-Modulated Continuous-Wave Radar in the Terahertz Range Based on a Resonant-Tunneling-Diode Oscillator

open access: yesSensors, 2020
We introduce a new principle for distance measurement in the terahertz-wave range using a resonant-tunneling-diode (RTD) oscillator as a source at 511 GHz and relying on the frequency-modulated continuous-wave (FMCW) radar technique.
Adrian Dobroiu   +4 more
doaj   +4 more sources

A Novel Method of Measuring Instantaneous Frequency of an Ultrafast Frequency Modulated Continuous-Wave Laser

open access: yesSensors, 2020
Ultrafast linear frequency modulated continuous-wave (FMCW) lasers are a special category of CW lasers. The linear FMCW laser is the light source for many sensing applications, especially for light detection and ranging (LiDAR).
Jiewei Yang   +4 more
doaj   +4 more sources

Convolutional Neural Network-Based Drone Detection and Classification Using Overlaid Frequency-Modulated Continuous-Wave (FMCW) Range-Doppler Images. [PDF]

open access: yesSensors (Basel)
This paper proposes a novel drone detection method based on a convolutional neural network (CNN) utilizing range–Doppler map images from a frequency-modulated continuous-wave (FMCW) radar. The existing drone detection and identification techniques, which
Han SK, Lee JH, Jung YH.
europepmc   +5 more sources

Frequency Modulation Control of an FMCW LiDAR Using a Frequency-to-Voltage Converter

open access: yesSensors, 2023
An FMCW LiDAR (frequency-modulated continuous-wave light detection and ranging) is a sensor that can measure distance using optical interference frequency (fb).
Jubong Lee, Jinseo Hong, Kyihwan Park
doaj   +4 more sources

Prospects of FMCW-based frequency diverse array radar [PDF]

open access: yesThe Journal of Engineering, 2019
The linear frequency modulated (LFM) frequency modulated continuous wave (FMCW)-based frequency diverse array (FDA) radar concept is investigated in detail. The radar operates as a linear pulsed FMCW/FDA in the transmission (TX) mode while it operates as
Ramazan Çetiner   +3 more
doaj   +2 more sources

Frequency-modulated comb LIDAR [PDF]

open access: yesAPL Photonics, 2019
Frequency-modulated continuous-wave LIDAR (FMCW LIDAR) has been widely used for both scientific and industrial tools. Here, in this report, a new class of LIDAR technique based on an optical frequency comb, named frequency-modulated comb LIDAR (FMcomb ...
N. Kuse, M. E. Fermann
doaj   +2 more sources

Correction of Nonlinear Frequency Sweep in Frequency-Modulated Continuous-Wave Laser Range Sensor

open access: yesInternational Journal of Distributed Sensor Networks, 2013
We propose a linearization method for reducing the effect of nonlinear frequency sweep in a frequency-modulated continuous-wave (FMCW) based laser range sensor.
Soo-Yong Jung   +2 more
doaj   +2 more sources

AWG-Based Spectral Multiplexing for Unambiguous Range-Extended FMCW LiDAR [PDF]

open access: yesSensors
Frequency-modulated continuous-wave (FMCW) light detection and ranging (LiDAR) based on coherent ranging is a technology capable of high-resolution distance measurement while remaining robust against ambient light interference.
Sangwon Park   +5 more
doaj   +2 more sources

In situ measurement of spectral linewidth in wavelength-modulated signals for frequency-modulated continuous-wave LiDAR systems

open access: yesAIP Advances
This paper advances an in situ method to measure the spectral linewidth directly from the currently generated wavelength-modulated signals in frequency-modulated continuous-wave (FMCW) light detection and ranging (LiDAR) systems, diverging from ...
Jongpil La   +3 more
doaj   +2 more sources

CRM-203 Type Frequency Modulated Continuous Wave (FM CW) Radar [PDF]

open access: yesTransNav, 2009
Paper presents description of the principle of work, structure and basic technical parameters of the Maritime Coastal Surveillance Frequency Modulated Continuous Wave (FMCW) Radar CRM-203 type constructed by Telecommunication Research Institute Ltd.
Slawomir Plata, Ryszard Wawruch
doaj   +1 more source

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