Results 31 to 40 of about 13,528 (217)

Frequency-modulated continuous-wave LiDAR compressive depth-mapping [PDF]

open access: yes, 2018
We present an inexpensive architecture for converting a frequency-modulated continuous-wave LiDAR system into a compressive-sensing based depth-mapping camera.
Howell, John C.   +2 more
core   +3 more sources

Structural Antennas for 3cm Radar Onboard Multi-Rotor UAV [PDF]

open access: yes, 2017
A series of 3cm amateur band radar antennas suitable for installation on a cinematic grade multi-rotor UAV were considered. A wideband open waveguide mouth antenna was developed that can be made from the existing arms of a multi-rotor UAV without any ...
Gray, D., Le Kernec, J.
core   +1 more source

Digital FMCW for ultrawideband spectrum sensing [PDF]

open access: yesRadio Science, 2016
AbstractAn ultrawideband digital frequency‐modulated continuous wave sensing engine is proposed as an alternative technique for cognitive radio applications. A dual‐band demonstrator capable of sensing 750 MHz bandwidth in 204.8 µs is presented. Its performance is illustrated from both bench tests and from real‐time measurements of the GSM 900 band and
Cheema, A., Salous, S.
openaire   +3 more sources

Design and Implementation of FMCW Surveillance Radar Based on Dual Chirps

open access: yesElektronika ir Elektrotechnika, 2018
We propose and implement a low-complexity dual-chirp FMCW radar system for surveillance applications. The FMCW radar is suitable for the detection of various positions of multiple targets for the monitoring of concealed humans.
Youngseok Jin   +3 more
doaj   +1 more source

CARRADA Dataset: Camera and Automotive Radar with Range-Angle-Doppler Annotations

open access: yes, 2021
High quality perception is essential for autonomous driving (AD) systems. To reach the accuracy and robustness that are required by such systems, several types of sensors must be combined. Currently, mostly cameras and laser scanners (lidar) are deployed
Newson, A.   +4 more
core   +2 more sources

Practical classification of different moving targets using automotive radar and deep neural networks [PDF]

open access: yes, 2018
In this work, the authors present results for classification of different classes of targets (car, single and multiple people, bicycle) using automotive radar data and different neural networks.
Angelov, Aleksandar   +3 more
core   +1 more source

Low Power 24 GHz ad hoc Networking System Based on TDOA for Indoor Localization

open access: yesISPRS International Journal of Geo-Information, 2013
This paper introduces the key elements of a novel low-power, high precision localization system based on Time-Difference-of-Arrival (TDOA) distance measurements. The combination of multiple localizable sensor nodes, leads to an ad hoc network.
Melanie Jung   +3 more
doaj   +1 more source

Time-Varying Vibration Compensation Based on Segmented Interference for Triangular FMCW LiDAR Signals

open access: yesRemote Sensing, 2021
Frequency modulation continuous wave (FMCW) light detection and ranging (LiDAR) 3D imaging system may suffer from time-varying vibrations which will affect the accuracy of ranging and imaging of a target.
Rongrong Wang   +5 more
doaj   +1 more source

Penetrating 3-D Imaging at 4- and 25-m Range Using a Submillimeter-Wave Radar [PDF]

open access: yes, 2008
We show experimentally that a high-resolution imaging radar operating at 576–605 GHz is capable of detecting weapons concealed by clothing at standoff ranges of 4–25 m.
Bryllert, Tomas   +10 more
core   +1 more source

MilliSonic: Pushing the Limits of Acoustic Motion Tracking

open access: yes, 2019
Recent years have seen interest in device tracking and localization using acoustic signals. State-of-the-art acoustic motion tracking systems however do not achieve millimeter accuracy and require large separation between microphones and speakers, and as
Gollakota, Shyamnath, Wang, Anran
core   +1 more source

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