Filters








66 Hits in 17.5 sec

A 24 GHz band FM-CW radar system for detecting closed multiple targets with small displacement

Kazuhiro Yamaguchi, Mitsumasa Saito, Takuya Akiyama, Tomohiro Kobayashi, Hideaki Matsue
2015 2015 Seventh International Conference on Ubiquitous and Future Networks  
This paper develops a 24 GHz band FM-CW radar system to detect closed multiple targets in a small displacement environment, and its performance is analyzed by computer simulation.  ...  The FM-CW radar system uses a differential detection method for removing any signals from background objects and uses a tunable FIR filtering in signal processing for detecting multiple targets.  ...  Toshio Nojima at Hokkaido University in Japan for his valuable advice and for analyzing the safety aspects of the developed FM-CW radar system according to the safety guidelines.  ... 
doi:10.1109/icufn.2015.7182548 dblp:conf/icufn/YamaguchiSAKM15 fatcat:hlsyu5fd5vdadcyajtbcc7wyr4

AUTOMATED MONITORING OF LIVESTOCK BEHAVIOR USING FREQUENCY-MODULATED CONTINUOUS-WAVE RADARS

Dominique Henry, Herve Aubert, Edmond Ricard, Dominique Hazard, Mathieu Lihoreau
2018 Progress In Electromagnetics Research M  
Here we introduce a new method to monitor the position and motion of an individual sheep using a 24 GHz frequency-modulated continuous-wave radar in a classical experimental paradigm called the arena test  ...  Several behavioral traits, including motion, are experimentally recorded in order to characterize the reactivity of animals and investigate its genetic determinism.  ...  ACKNOWLEDGMENT The authors acknowledge all the staff of the INRA experimental farm Langlade (Pompertuzat, France) for their involvement in the experiments.  ... 
doi:10.2528/pierm18040404 fatcat:u34mgfpkarbi7lhjh2w2am6oey

Proximal Radar Sensors for Precision Viticulture

Dominique Henry, Herve Aubert, Thierry Veronese
2019 IEEE Transactions on Geoscience and Remote Sensing  
Three ground-based frequency-modulated continuous-wave radars operating, respectively, at 24, 77, and 122 GHz are used for the contact-less estimation of grape mass in vineyards.  ...  In this paper, we report the accurate estimation of vine grape yield from a 3-D radar imagery technique.  ...  ACKNOWLEDGMENT The authors would like to thank Eric Serrano and the staff of IFV Sud-Ouest (Institut Français de la Vigne et du Vin) for their expertise and the authorized access of the IFV Sud-Ouest vineyards  ... 
doi:10.1109/tgrs.2019.2891886 fatcat:47a3ng7k2zdv5du4goy673roea

Detection of Concealed Individuals Based on Their Vital Signs by Using a See-Through-Wall Imaging System With a Self-Injection-Locked Radar

Fu-Kang Wang, Tzyy-Sheng Horng, Kang-Chun Peng, Je-Kuan Jau, Jian-Yu Li, Cheng-Chung Chen
2013 IEEE transactions on microwave theory and techniques  
azimuth from the radar to each individual in a scene behind a wooden partition wall.  ...  This paper presents a self-injection-locked (SIL) radar with ranging and tracking capabilities to see through walls for discovering hidden people.  ...  However, a tradeoff between robustness and efficiency is always incurred in operation. Actually, the CW radar is limited mainly by its inability to obtain range information for the target [6] .  ... 
doi:10.1109/tmtt.2012.2228223 fatcat:mqeu54e63zbxboytqf2spxndpi

Three-dimensional terahertz continuous wave imaging radar for nondestructive testing

Xiaoxuan Zhang, Tianying Chang, Zhongmin Wang, Hong-Liang Cui
2020 IEEE Access  
The second is the synthetic aperture radar imaging algorithm for surface detection or internal detection of objects with lower refractive index.  ...  up to assist the planning and completion of the research, including a narrow-band LFMCW 3D imaging radar and a wide-band stepped-frequency modulated continuous wave 3D imaging radar.  ...  For the problem of measuring the 0.1-10 mm scale particle distributions and dynamics in jets occurring on comets and icy moons in the solar system, a 95 GHz FMCW Doppler radar is being developed for detecting  ... 
doi:10.1109/access.2020.3014170 fatcat:i2gprnwydncv3bs3l7xe7pot2m

Long-Range Zero-Power Multi-Sensing in Industrial Environment using Polarization Diversity and 3D Radar Imagery

Dominique Henry, Timothee Marchal, Julien Philippe, Herve Aubert, Patrick Pons
2020 2020 IEEE/MTT-S International Microwave Symposium (IMS)  
The 3D beamscanning of the scene is performed from a 24GHz FM-CW radar and for diverse electric field polarizations.  ...  This paper describes the wireless and simultaneous interrogation of multiple passive (zero-power) pressure sensors in an industrial environment with a reading range of at least 3 meters.  ...  ACKNOWLEDGMENT The authors wish to thank Occitanie Region (CARANUC Project) and EDF (Electricité de France) for financial support.  ... 
doi:10.1109/ims30576.2020.9223852 fatcat:o57k266unnd4leziypze5lh2oi

Radar cross section of the human heartbeat and respiration

Oyvind Aardal, Svein-Erik Hamran, Tor Berger, Jan Hammerstad, Tor Sverre Lande
2010 2010 Biomedical Circuits and Systems Conference (BioCAS)  
Thanks to Mats Jørgen Øyan and Leif Hanssen at FFI for hardware and measurement support.  ...  Thanks to Mats Jørgen Øyan and Leif Hanssen at FFI for hardware and help during the measurements.  ...  For different applications, different radar systems are needed.  ... 
doi:10.1109/biocas.2010.5709569 fatcat:s3pq74krr5eu3l5rlotog2tpyy

Radio-frequency interference to automotive radar sensors

Andrew Stove, Chris Baker
2018 IET radar, sonar & navigation  
Cases of interference between pulsed radars, frequency-modulated continuous wave and noise-modulated automotive radars at frequencies around 24 and 77 GHz are considered, and it is shown that pulse-and  ...  Interference from other sources and the potential for deliberate jamming are also considered.  ...  radar (SRR) working at 24 GHz with a broad beam.  ... 
doi:10.1049/iet-rsn.2018.5027 fatcat:qb42jnxy6nfl5c5zkww6uesbaq

Spacebased Radar Sensors [chapter]

2006 Spacecraft Sensors  
There are many radar systems such as pulsed radar continuous wave (CW) radar, and FM-CW radar that will be explored in the following sections.  ...  MTI and pulsed Doppler radar systems are used to detect moving targets in a severely cluttered environment.  ... 
doi:10.1002/0470865296.ch6 fatcat:ivjd6tpmg5dppes2lpvesa2zk4

Radar Spectrum Engineering and Management: Technical and Regulatory Issues

Hugh Griffiths, Lawrence Cohen, Simon Watts, Eric Mokole, Chris Baker, Mike Wicks, Shannon Blunt
2015 Proceedings of the IEEE  
It is used for a wide range of purposes, including communications, radio and television broadcasting, radionavigation, and sensing.  ...  Radar represents a fundamentally important use of the electromagnetic (EM) spectrum, in applications which include air traffic control, geophysical monitoring of Earth resources from space, automotive  ...  Such wide bandwidths may be needed to classify targets and accurately measure their position in a complex scene. A.  ... 
doi:10.1109/jproc.2014.2365517 fatcat:b5qa3ezohbglzbpt2tnykmfrr4

Long-Range Wireless Interrogation of Passive Humidity Sensors Using Van-Atta Cross-Polarization Effect and Different Beam Scanning Techniques

Dominique Henry, Jimmy G. D. Hester, Herve Aubert, Patrick Pons, Manos M. Tentzeris
2017 IEEE transactions on microwave theory and techniques  
As a proof-of-concept demonstration, a Van-Atta reflectarray sensor is interrogated with a 24 GHz Frequency-Modulated Continuous- Wave transceiver at various reading ranges.  ...  The relative humidity is derived from the statistical analysis of multidimensional radar echoes, while method is proposed to detect the sensor among clutter without knowing its exact position.  ...  A. Radar Beam Scanning Description The reader is often called short-range FM-CW radar [10] because it allows targets detection below 100 meters.  ... 
doi:10.1109/tmtt.2017.2769055 fatcat:gv4ycfiutzdttefsymzhirvuwm

Remote Monitoring of Human Vital Signs Based on 77-GHz mm-Wave FMCW Radar

Yong Wang, Wen Wang, Mu Zhou, Aihu Ren, Zengshan Tian
2020 Sensors  
Compared with contact-based detection methods, it brings a more comfortable and a faster experience to the human body, and it has gradually received attention in the field of radar sensing.  ...  In recent years, non-contact radar detection technology has been able to achieve long-term and long-range detection for the breathing and heartbeat signals.  ...  Compared to CW and pulse radars, the FMCW radar has a higher range and speed resolution, as well as its ability to distinguish multiple targets and extract target fretting information, making it a mainstream  ... 
doi:10.3390/s20102999 pmid:32466309 pmcid:PMC7285495 fatcat:4v6rz7zvgvbdpg7hy4t255e4le

Ground‐Penetrating Radar for Close‐in Mine Detection [chapter]

Olga Lucia Lopera Tellez, Bart Scheers
2017 Mine Action - The Research Experience of the Royal Military Academy of Belgium  
Data acquired using different affordable and practical GPR-based systems are used to validate a number of promising developments in signal processing techniques for target detection and identification.  ...  penetrating radar (GPR)-based systems, which can be used off-ground and (ii) development of robust signal processing techniques for landmines detection and identification.  ...  for their outstanding support during some trials.  ... 
doi:10.5772/67007 fatcat:7pqtdg57izaztkqr7lvc7vwmm4

Survey of collision avoidance and ranging sensors for mobile robots

CDR H.R Everett
1989 Robotics and Autonomous Systems  
The radar is a frequency modulated continuous wave (FM/CW) system coupled with a beam-steerable antenna. The center frequency is at or near 50 GHz (6-millimeter wavelength).  ...  This type of radar allows range, velocity, relative amplitude (size or radar cross section), and angle determination for multiple targets. The 50 GHz frequency requires a relatively small antenna.  ...  (It is felt that advances in vision systems in the near future will include the development of custom designed, possibly parallel, processors that can Pi perform this "front end" scene analysis, extracting  ... 
doi:10.1016/0921-8890(89)90041-9 fatcat:gj4s3pzud5b23gei655lsjycju

Resolution improvement techniques for microwave imaging in random media using small wideband adaptive arrays

Mark Curry, Yasuo Kuga, Franklin T. Luk
2002 Advanced Signal Processing Algorithms, Architectures, and Implementations XII  
The motivations for this work are indoor personnel localization systems, automotive radar and radar imaging seekers.  ...  In this work we review and extend the approach for radar imaging using small, wideband, adaptive arrays by using a ray-tracing algorithm to simulate non-homogeneous environments.  ...  The motivation for this work is to provide high resolution, range-angle, microwave imagery for generally short range applications such as indoor personnel localization, missile seekers, or automotive radar  ... 
doi:10.1117/12.452020 fatcat:dlguxfep4rgkfny5sde2znqdka
« Previous Showing results 1 — 15 out of 66 results