Results 11 to 20 of about 8,925 (215)

FMCW SAR Data Inversion [PDF]

open access: yesIGARSS 2020 - 2020 IEEE International Geoscience and Remote Sensing Symposium, 2020
Frequency-modulated continuous-wave (FMCW) synthetic aperture radar (SAR) systems represent an effective solution for observing the earth surface. Although they have recently grown in popularity, FMCW SAR raw signals are sometimes not open access, thus preventing the user from performing those processing techniques designed in the raw domain.
Casalini, Emiliano, Henke, Daniel
openaire   +4 more sources

Simultaneous Time-Varying Vibration and Nonlinearity Compensation for One-Period Triangular-FMCW Lidar Signal

open access: yesRemote Sensing, 2021
Frequency modulation continuous wave (FMCW) Lidar inevitably suffers from vibration and nonlinear frequency modulation, which influences the ranging and imaging results.
Maosheng Xiang, Bingnan Wang, Chong Song
exaly   +3 more sources

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
Siu O'young
exaly   +3 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

Experimental Comparison of IR-UWB Radar and FMCW Radar for Vital Signs

open access: yesSensors, 2020
In this paper, we compare the performances of impulse radio ultra-wideband (IR-UWB) and frequency modulation continuous wave (FMCW) radars in measuring noncontact vital signs such as respiration rate and heart rate. These two type radars have been widely
Sung Ho Cho, Dingyang Wang, Sungwon Yoo
exaly   +3 more sources

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   +2 more sources

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   +4 more sources

A Coherent Dual-Band FMCW Photonic Radar Based on a Synchronized FMCW Optoelectronic Oscillator

open access: yesIEEE Access
This paper proposes and experimentally demonstrates a novel coherent radar architecture based on a synchronized frequency-modulated continuous-wave optoelectronic oscillator.
Youngseok Bae, Minji Hyun, Joonyong Park
openaire   +3 more sources

Orthogonal waveforms for FMCW MIMO radar

open access: yes2011 IEEE RadarCon (RADAR), 2011
Multiple input/multiple output (MIMO) radar system performance benefits from the capability to simultaneously transmit and receive multiple orthogonal waveforms. For pulse radars fitting orthogonal waveforms have been developed. These waveforms are however not necessarily suitable for frequency-modulated continuous-wave (FMCW) radar.
Wit, J.J.M. de   +2 more
core   +4 more sources

SAR ADC for a Multimode Radar Transceiver with Offset Calibration [PDF]

open access: yesJournal of Electromagnetic Engineering and Science, 2022
In this paper, we design a successive approximation register (SAR) analog-to-digital converter (ADC) suitable for multimode radar transceivers. For multimode radars, the sampling rate required by ADC varies according to the continuous wave (CW) or ...
Jin-Seop Lee   +3 more
doaj   +1 more source

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