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检索条件"任意字段=Conference on Radar Sensor Technology"

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Vital Sign Sensing in Motion based on Millimeter Wave radar 24

Vital Sign Sensing in Motion based on Millimeter Wave Radar

引用

4th International Joint conference on Robotics and Artificial Intelligence, JCRAI 2024

作者： Chen, Wei Gong, Pengcheng Zeng, Li Wu, Yuntao Wuhan Institute of Technology Wuhan China

ISBN: (纸本)9798400710100

Non-contact monitoring technology can provide continuous vital sign data and help to detect the changes of physiological state in time, which is of great significance for early diagnosis and health management of diseases. For decades, however, the focus of the study was on stationary objects, as body motion clutter can easily overwhelm the subtle reflection of vital signs. This paper combines the direct RF sensing of a static example with the respiratory and heartbeat signal detection based on motion power estimation. We designed a custom deep learning model to capture the complex correlations between RF signal patterns, movement power, and vital signs. We further designed a real-time calibration and adaptive training scheme to achieve cross-topic generalization. Finally, we use FMCW radar sensor to evaluate the framework. The experimental results show that our method achieves an average HR error estimate of 4.99 bpm and 6.95 bpm on two different datasets, respectively, which is largely superior to the most advanced systems. © 2024 Copyright held by the owner/author(s). Publication rights licensed to ACM.

关键词： Deep learning

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A Novel 4D radar and Image Fusion for 3D Object Detection in Autonomous Driving 27

A Novel 4D Radar and Image Fusion for 3D Object Detection in...

引用

27th IEEE International conference on Intelligent Transportation Systems, ITSC 2024

作者： Zhao, Yang Jin, Yiwei Deng, Ruoyu Tao, Yueming Peng, Zhinan Zhan, Huiqin Cheng, Hong School of Automation Engineering University of Electronic Science and Technology of China Sichuan Chengdu China Chengdu Technological University Chengdu611730 China

ISBN: (纸本)9798331505929

3D object detection is a crucial task in the perception module of autonomous driving, current research employs LiDAR or imagery for 3D object detection. However, imagery lacks depth information, and LiDAR has limited robustness in adverse weather conditions. 4D millimeter-wave radar, as a promising new type of sensor, not only provides high-precision Doppler velocity information but also, with enhanced elevation resolution, can obtain accurate height information of targets. Compared to high-beam LiDAR, the point cloud is still sparse, making it challenging to obtain precise semantic information, thus posing a significant challenge for 3D object detection using 4D millimeter-wave radar. This paper introduces a 3D object detection framework that fuses 4D millimeter-wave radar with imagery-4D radar Fusion. By transforming both 4D millimeter-wave radar and monocular imagery into the BEV space for feature fusion, it effectively enhances the semantic information learning of the 4D millimeter-wave radar. Experimental evaluation on the autonomous driving dataset VoD demonstrates the effectiveness of 4D radar Fusion, achieving a 6% improvement in 3D average precision over the baseline for the entire annotated area. © 2024 IEEE.

关键词： Image fusion

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A Last Line Naval Defense System Based on Underwater Wireless sensor Network 6

A Last Line Naval Defense System Based on Underwater Wireles...

引用

6th International conference on Green Energy and Applications (ICGEA)

作者： Tani, Lamia Fatiha Kazi Kadri, Benamar Univ Tlemcen STIC Lab Tilimsen Algeria

ISBN: (纸本)9781665420525

Similar to wireless sensor networks underwater wireless sensor Networks (UWSNs) are composed of hundreds to thousands of tiny sensor nodes;static or dynamic usually communicate using acoustic link This kind of networks has the capacity of acting as similar sensor and detects environment measures such as temperature or pressure as well as movement under water which makes them an ideal tool for underwater radars and remote detection systems for naval forces. In our paper we are going to propose a security mechanism to ensure authentication and confidentiality for a last line defense system. In which an UWSN will be used as platform for last line radar system intended to detect and destroy military targets. The proposed system will act as a rescue system launched when the traditional radar and sonar systems are in the incapacity to detect and destroy targets due to the high technology of the enemy or the destruction of the traditional naval system.

关键词： UWSN radar sonar routing security defense system

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Design of Barker-7 radar Pulse Compressor Using DSP Architecture Minimization Techniques 13

Design of Barker-7 Radar Pulse Compressor Using DSP Architec...

引用

13th IEEE International conference on Communication Systems and Network Technologies, CSNT 2024

作者： Anoop, Kumar Dayananda, B. Achala, G. Srihari, Pathipati Pardhasaradhi, Bethi Cenkeramaddi, Linga Reddy National Institute of Technology Karnataka Ece Dept. India University of Adger Department of Ict Grimsted Norway

ISBN: (纸本)9798350305463

Pulse compression algorithms play an important role in achieving better range resolution (RR) in automobile radar and ultrasonic sensors. The RR is the sensor's capacity to distinguish between two targets positioned in the same angular direction but at different distances. The Digital Signal Processing Architecture (DSPA) used in the pulse compressor is crucial for reaching high speeds or reducing hardware needs. This work presents two unique radar pulse compressor DSPAs for Barker-7 sequences, based on latency and area. One proposed design is the unfolding DSPA technology, which increases sample rate and speed. At the same time, another architecture, the folding DSPA approach, reduces hardware utilization and power consumption. The proposed DSPA design architectures are implemented and verified with the Artix-7 FPGA Kit. The unfolded Barker-7 pulse compressor increased the speed by 1.87 times as compared to the standard broadcasting Barker-7 realization, as demonstrated by the hardware implementation results. Folded Barker-7 architecture consumed 89% less power than existing Barker-7 broadcast architecture. The DSPAs proposed for the Barker-7 pulse compressor are ideal for ultrasonic, sonar, and radar applications that require high speed and low power. © 2024 IEEE.

关键词： Digital signal processing

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FMCW radar sensor Based Human Activity Recognition using Deep Learning

FMCW Radar Sensor Based Human Activity Recognition using Dee...

引用

International conference on Electronics, Information, and Communication (ICEIC)

作者： Ahmed, Shahzad Park, Junbyung Cho, Sung Ho Hanyang Univ Dept Elect Engn Seoul South Korea

ISBN: (纸本)9781665409346

Human Activity Recognition (HAR) has found many applications in several disciplines such as smart home and elderly healthcare units. The robustness of radar sensor against the environmental conditions make it a suitable candidate to recognize human activities. In this paper, we used Frequency Modulated Continuous Wave radar (FMCW) radar for recognizing human activities in an unconstrained environment. Seven different activities are performed randomly at different distances from radar and a multi-class classification problem is formulated. Performed activates are recorded with single FMCW radar and a deep-learning classifier is used for recognition. The target range variations generated while performing the predefined human activates are fed as an input to the features extraction block of three Convolutional Neural Network and a softmax classification is performed. Overall recognition accuracy of 91% is achieved.

关键词： Deep learning FMCW radar Human Activity Recognition

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Implementation of Kalman Filter for Stabilizing Ultrasonic sensor Reading on Distilled Ethanol Levels Measurement

Implementation of Kalman Filter for Stabilizing Ultrasonic S...

引用

2023 International conference on radar, Antenna, Microwave, Electronics, and Telecommunications, ICRAMET 2023

作者： Pristianto, Eko Joni Susanti, Novita Dwi Harjamulya, Handy Kurniawan, Erry Dwi Kurniawan, Dayat Rahman, Arief Nur Darwis, Fajri Kurniadi, Deni Permana National Research and Innovation Agency of Indonesia Research Center for Telecommunications Bandung Indonesia National Research and Innovation Agency of Indonesia Research Center for Appropriate Technology Subang Indonesia Bandung Institute of Technology School of Electrical Engineering and Informatics Bandung Indonesia National Research and Innovation Agency of Indonesia Research Center for Electronics Bandung Indonesia

ISBN: (纸本)9798350343892

Digitalization measurements, such as sensors, are growing significantly. An ethanol concentration sensor is a digital device for measuring the ethanol content in a solution. Measuring ethanol in a solution might help to identify the ethanol levels, especially in halal-food beverages or some food-agricultural products. The main issue in measuring ethanol on distilled products is the unstable surface, which could be incorrect analysis. Therefore, in this research Kalman filter algorithm was designed on an ultrasonic sensor to reduce the incorrect reading analysis. The result gave a covariance matrix of the measurement noise (Q) = 0.00001 and a covariance matrix associated with the noise in states (R) = 5999.3955 and potential to apply, which gives better accuracy and stability to the reading data. © 2023 IEEE.

关键词： Ethanol

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Development of Controllable LED Light Source for Retinomorphic sensor Measurement Test

Development of Controllable LED Light Source for Retinomorph...

引用

2023 International conference on radar, Antenna, Microwave, Electronics, and Telecommunications, ICRAMET 2023

作者： Kurniawan, Erry Dwi Muthiah, Shafa Simbolon, David Erikson Taufiqqurrachman Research Center for Electronics National Research and Innovation Agency Bandung Indonesia Sumatera Institute of Technology Study Program of Physics South Lampung Indonesia National Research and Innovation Agency Research Center for Telecommunication Bandung Indonesia

ISBN: (纸本)9798350343892

In the digital age, the advancement of autonomous vehicles is currently extremely quick. The invention and development of retinomorphic sensors lend credence to this. This sensor's ability to function similarly to the human eye makes it handy for detecting the presence of objects in front of the sensor. It is necessary to use a tool known as an LED controller to test this sensor. To evaluate the voltage regulation on the LED controller both mechanically and digitally, this research will explore, design, and construct an LED controller. The LED Controller has voltage adjustment capabilities between 1.2 and 25 volts. However, the highest power the LED can withstand is somewhere between 15 and 16 volts. As a result, 16 Volts should be set as the input limit value in the microcontroller program. © 2023 IEEE.

关键词： Voltage regulators

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Multi-Target Pedestrian Tracking Using radar and Visual Detection Information Fusion 8

Multi-Target Pedestrian Tracking Using Radar and Visual Dete...

引用

8th International conference on Power and Renewable Energy, ICPRE 2023

作者： Lin, Yuan Zhou, Wenju Wang, Shunan Ruan, Wei Shanghai University School of Mechatronic Engineering and Automation Shanghai China Shanghai Anda Electronics Technology Co. Ltd. Shanghai China

ISBN: (纸本)9798350328813

Pedestrian Multi-object Tracking (MOT) is crucial in surveillance, autonomous driving, and pedestrian density detection. An important challenge in MOT is detecting environmental disturbances like bad weather, occlusion, or tracking failures due to distance. Current methods rely on machine vision, extracting features and establishing trackers. However, these methods solely depend on image data, limiting detection accuracy in unstable conditions. To address this, a method is proposed that combines millimeter wave radar and camera sensors. The radar provides anti-interference, range, and depth measurements, while the camera offers target recognition and orientation. In dealing with the detection relationship between the two sensors, the distance measure in the logarithmic domain is used for matching. In terms of detection results and tracking, the utilization rate of detection results is improved by using the method of secondary matching. This fusion method reduces computational burden and improves stability by complementing missing data from any sensor. The MMW radar and camera fusion tracking algorithm is validated using an experimental platform, demonstrating significant performance enhancements compared to single-sensor tracking. © 2023 IEEE.

关键词： Camera and radar Data fusion Kalman filter Pedestrian tracking

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Multi-frequency electromagnetic sensor for detecting NaCl concentration in water - Experimental study 20

Multi-frequency electromagnetic sensor for detecting NaCl co...

引用

20th International conference on Ground Penetrating radar, GPR, 2024

作者： Wang, Haoyu Zeng, Zhaofa Li, Zhilian College of Geo-Exploration Science and Technology Jilin University 938 Ximinzhu Street Changchun130026 China

Clean water resources have become the focus of global attention. The rapid detection of water pollution and the rapid evaluation of NaCl content in water is an important evolution the quality of water or soil in environment and agriculture. The main method analysis the content in water or soil is based on laboratory chemical tests at present. In this paper, we used a method based on a non-uniform microwave sensor array to determine the concentration of NaCl in water. Based on the experiment data, empirical formulas obtained between the concentration of NaCl in water and different electromagnetic frequency which can be used for NaCl content estimation. The results of the study demonstrated the feasibility of microwave sensors in detecting chemical content in water, and as basic experiment for further study for water pollution. © Published under licence by IOP Publishing Ltd.

关键词： Microwave sensors

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Loaded Waveguide Measurements of Plastic Explosives at V-Band 27

Loaded Waveguide Measurements of Plastic Explosives at V-Ban...

引用

conference on radar sensor technology XXVII

作者： Landicini, Zachary J. Barber, Jeffrey Weatherall, James C. Karns, Duane C. Smith, Peter R. Aparicio-Bolano, Joaquin Ruiz, Wendy Battelle Mem Inst 2900 Fire RdSuite 201 Egg Harbor Township NJ 08234 USA US Dept Homeland Secur Sci & Technol Directorate William J Hughes Tech Ctr Atlantic City NJ 08405 USA MAG Aerosp 1 Radar Way Tinton Falls NJ 07724 USA

ISBN: (纸本)9781510661844;9781510661851

Dielectric measurements of plastic explosives using a loaded waveguide technique via vector network analyzer and banded MMW extender modules operating at V-band (50 - 75 GHz) are performed. A portion of explosive sample is inserted into a waveguide shim 2 mm in length and trimmed flush with the faces of the shim. Two-port S-parameter measurements were conducted on the explosive;the empty shim is similarly characterized. Using standard waveguide equations and the measured length of the shim, the complex S-parameter data obtained with the filled shim is optimized to four free parameters - complex permittivity and distance offsets for the two sample faces relative to the calibration planes. Permittivity data obtained from measurements of the plastic explosives C-4, Primasheet 1000, Primasheet 2000 and Semtex 10 are presented. Results obtained for C-4 are comparable to other data in open literature. Excellent agreement between the experiment and the fit is obtained using a constant permittivity across the waveguide band, indicating that dispersion is not significant for these materials.

关键词： millimeter wave dielectric measurement reflection coefficient explosives detection MMW

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