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

共 1513 条记录，以下是11-20 订阅

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Comparison of Actual Performance between CDMA and DDMA Waveforms in Vehicle radar Application 16

Comparison of Actual Performance between CDMA and DDMA Wavef...

引用

16th International conference on Signal Processing Systems, ICSPS 2024

作者： Wang, Wanbin Zou, Lin School of Information and Communication Engineering University of Electronic Science and Technology of China Chengdu China

ISBN: (纸本)9781510689251

The Millimeter-wave radar has become an important sensor for advanced driver assistance systems due to its advantages such as environmental adaptability, low cost and detection accuracy. Most of current vehicle radars use Multiple Input Multiple Output (MIMO) technology to obtain better angular resolution. Among all MIMO radar waveforms, both CDMA and DDMA meet the requirements of next-generation high-performance radars and may become the mainstream radar waveforms in the future. Performance comparisons of the two waveforms are scattered in a large number of literatures and they are all from a theoretical point of view. At present, there is no literature comparing the practical performance of CDMA and DDMA. AWR6843 is a high-precision millimeter-wave radar sensor widely used in automotive safety, environmental monitoring and other applications. This SOC chip has been adopted in numerous automotive radar products. Thus, based on the data collected by a TI's AWR6843 radar evaluation board, this paper compares the performance of CDMA and DDMA in terms of waveform orthogonality, parameter estimation capability, and processing complexity. In addition, the paper discusses the merits and demerits of each technology and the limitations of its practical application, which provides an important reference for the optimization and technical route selection of future radar systems. © 2025 SPIE.

关键词： Advanced driver assistance systems

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Measurement of pH Water Based on sensor, Arduino and Solar Cell in Laser Communication 13

Measurement of pH Water Based on Sensor, Arduino and Solar C...

引用

2024 International conference on radar Antenna Microwave Electronics and Telecommunications

作者： Assaidah Juri, Saifudin Ariani, Menik Saleh, Khairul Fitri, Yulia Handayani, Feriska Univ Sriwijaya Dept Phys Palembang Indonesia Univ Muhammadiyah Riau Dept Phys Pekanbaru Indonesia Univ Andalas Dept Phys Padang Indonesia

ISBN: (纸本)9798350389937;9798350389920

We connected pH sensor and solar cell into Arduino Board to control data transmission via red laser communication or popular known as visible light communication (VLC). The sensor was calibrated through pH water solution measurement compared with conventional pH Meter. This sensor collected and then modulated pH data in Arduino to be sent via laser beam. The beam is captured by solar cell which acts as a photodetector in receiver. The received data will be demodulated in Arduino to be displayed in serial monitor to observe the communication performance. As the result, the link distance of laser communication can reach 35 m using 1-PWM and 15 m using 2-PWM, in free-space environment. When the transmission channel was changed into water environment, the link distance will decrease severely. The prototype output of this work will be a future self-powered modem for water surface and underwater monitoring system.

关键词： pH laser Arduino solar cell VLC

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Millimeter Wave radar-Based Road Segmentation 27

Millimeter Wave Radar-Based Road Segmentation

引用

conference on radar sensor technology xxVII

作者： Southcott, Mark A. Zhang, Leo Liu, Chen Clarkson Univ Potsdam NY 13699 USA

ISBN: (纸本)9781510661844;9781510661851

Research into autonomous vehicles has focused on purpose-built vehicles with Lidar, camera, and radar systems. Many vehicles on the road today have sensors built into them to provide advanced driver assistance systems. In this paper we assess the ability of low-end automotive radar coupled with lightweight algorithms to perform scene segmentation. Results from a variety of scenes demonstrate the viability of this approach that complement existing autonomous driving systems.

关键词： millimeter wave radar ADS road segmentation

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Quantifying Knowledge: Medical Applications of radar Aging through the Lens of Bibliometrics 21

Quantifying Knowledge: Medical Applications of Radar Aging t...

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conference on Smart Biomedical and Physiological sensor technology xxI

作者： Obaideen, Khaled Faroukh, Yousuf Bonny, Talal Al-Shabi, Mohammad Alobaid, Ahmad Univ Sharjah Res Inst Sci & Engn Sharjah U Arab Emirates Univ Sharjah Sharjah Acad Astron Space Sci & Technol CubeSat Lab Sharjah U Arab Emirates Univ Sharjah Coll Comp & Informat Sharjah U Arab Emirates Univ Sharjah Coll Engn Sharjah U Arab Emirates

ISBN: (纸本)9781510674370;9781510674363

This research plunges into the rapidly growing radar technology in the medical sector, putting emphasis on its possibility to revolutionize elderly care and health monitoring among the aging global population. Based on a systematic literature review and rigorous bibliometric analysis, we discuss radar technology application in healthcare, focusing on its potential for non-invasive, high-accuracy diagnosis and continuous patient monitoring. Our findings highlight the critical harmony between radar technology and the advances in machine learning, artificial intelligence, and data analytics, which open the door to smart healthcare solutions. These advancements will improve early disease detection, fall risk prevention, and real-time health monitoring, resulting in quick medical responses. This study endeavors to offer useful knowledge to researchers, practitioners, and policymakers who are working towards the use of technology for better health in the context of the demographic changes that the world is experiencing in terms of an ageing population by mapping the current research landscape, identifying the existing trends and gaps, and proposing the future direction of research.

关键词： radar Rlderly Care VOSviewer Bibliometric

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Investigation of OFDM Signals for Microwave Ranging 28

Investigation of OFDM Signals for Microwave Ranging

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conference on radar sensor technology xxVIII

作者： Yazgan, Mehmet Arslan, Huseyin Vakalis, Stavros Univ S Florida Tampa FL 33620 USA Medipol Univ Istanbul Turkiye

ISBN: (纸本)9781510674158;9781510674141

Wireless ranging and positioning plays a pivotal role across numerous applications, encompassing wireless networks, robotics, navigation, and distributed wireless systems. A common limitation encountered in many ranging algorithms relates to the requirement for waveforms with sufficiently wide bandwidth to attain precise ranging accuracy. In this study, we investigate the applicability of orthogonal frequency-division multiplexing (OFDM) signals for microwave-ranging without necessitating any modifications. OFDM, being a joint communications and sensing waveform, offers the advantage of repurposing existing communication signals for ranging purposes without additional spectrum utilization. We discuss the theoretical underpinnings of our investigation and present simulated and experimental ranging measurements employing OFDM signals, complemented by range estimation and error analyses.

关键词： Channel state information joint radar and communications microwave ranging OFDM wireless sensing

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Vibration Monitoring of Tunnel Faces Applying 78GHz DBF-based high-speed imaging radar 28

Vibration Monitoring of Tunnel Faces Applying 78GHz DBF-base...

引用

conference on radar sensor technology xxVIII

作者： Iwaki, Hideaki Nishi, Takuro Tada, Hiroyuki Shimizu Corp Koto Ku 3-4-17 Etchu Jima Tokyo 1358530 Japan

ISBN: (纸本)9781510674158;9781510674141

To prevent accidents caused by collapse and rockfall tunnel faces during construction, we considered vibration monitoring using a millimeter-wave (78-GHz band) DBF-based high-speed imaging radar. Basic performance tests were conducted in a radio anechoic room and test facility simulating an actual tunnel. It was confirmed that the accuracy of the 0.1-mm displacement-measurement, high-speed sampling of 0.001 s, and individual movements of several targets could be distinguished. Based on the basic test results, on-site measurements were performed at an actual tunnel construction site. The displacement and vibration changes of a tunnel face at the time of breakthrough can be captured;in addition, large velocity changes occur in a working face before breakthrough, and it might be possible to detect an abnormal tunnel face in advance. In addition, it was confirmed that the movement of the rockfall location was almost precisely captured even for small-scale flaking during the drilling of the working face, regardless of the condition in which a part of the measurement range became shadowed.

关键词： Vibration monitoring Application for safety assessment during construction Tunnel Face DBF Millimeter Wave High Speed Imaging radar

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Vital Signs Monitoring Using 61.4 GHz CW MIMO radar sensor with LO-Scalable Low-Voltage Low-Power SiGe BiCMOS Chipset 54

Vital Signs Monitoring Using 61.4 GHz CW MIMO Radar Sensor w...

引用

54th European Microwave conference (EuMC)

作者： Sutbas, Batuhan Ng, Herman Jalli Eissa, Mohamed Hussein Carta, Corrado Kahmen, Gerhard IHP Leibniz Inst Innovat Mikroelekt Frankfurt Germany Brandenburg Tech Univ Cottbus Cottbus Germany Hsch Karlsruhe Karlsruhe Germany Tech Univ Berlin Berlin Germany

ISBN: (纸本)9798350385892;9782874870774

This work proposes a highly energy-efficient continuous-wave (CW) radar sensor for vital signs monitoring realized at V-band using low-voltage and low-power TRx and VCO chips developed in an advanced SiGe BiCMOS technology. The dc power consumption is only 265mW from 1.5 V. The RF front-end board with antennas adopts a 2x2 MIMO configuration and is further expandable thanks to the LO-scalable architecture. The experiments conducted in an anechoic chamber for 2-D vibration measurements using TDM digital beamforming and human vital signs monitoring demonstrate the functionality and high accuracy of the overall system. The breathing and heart rates of a person obtained from the radar match the reference values acquired by a pulse oximeter very closely. The presented radar sensor with the reported high performance and energy efficiency specifications is readily compatible with mobile battery-powered modules for near term industrial and medical applications.

关键词： continuous-wave radar digital beamforming energy-efficiency integrated circuit low-power low-voltage medical sensor millimeter-wave silicon-germanium vital signs

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Doppler Processing with Near-Field Arrays 28

Doppler Processing with Near-Field Arrays

引用

conference on radar sensor technology xxVIII

作者： Dogaru, Traian Ranney, Kenneth US Army Combat Capabil Dev Command Army Res Lab 2800 Powder Mill Rd Adelphi MD 20783 USA

ISBN: (纸本)9781510674158;9781510674141

Surveillance radar systems equipped with active electronically scanned antenna arrays (AESA) typically operate with low spatial resolution (50 to 100 m). Under these conditions, the data transformation from the radar signal in the frequency, array position and slow time dimensions to the reflectivity map in the range, angle and Doppler dimensions is conventionally performed by a 3-D fast Fourier transform (FFT). In this paper, we consider a radar system equipped with a wide, near-field array, providing high angular resolution, and examine the changes required in the matched filter-based signal processing to accommodate this sensing geometry. Beamforming techniques that include exact, approximate, FFT-based and sparse-array-based matched filter implementations are investigated. Additionally, we consider joint Doppler-azimuth mapping with wide antenna arrays, while the system operates with narrowband waveforms to allow decoupling of range from the other two signal dimensions. In the numerical examples, we demonstrate a 200-m-wide, S-band sparse array capable of achieving 0.03 degrees resolution in azimuth. Processing with a fully coupled, high range resolution system equipped with a wide antenna array will be investigated in a future publication.

关键词： Doppler processing antenna arrays beamforming matched filter distributed radar sparse arrays

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Multi-radar Inertial Odometry for 3D State Estimation using mmWave Imaging radar

Multi-Radar Inertial Odometry for 3D State Estimation using ...

引用

IEEE International conference on Robotics and Automation (ICRA)

作者： Huang, Jui-Te xu, Ruoyang Hinduja, Akshay Kaess, Michael Carnegie Mellon Univ Robot Inst Pittsburgh PA 15213 USA

ISBN: (纸本)9798350384581;9798350384574

State estimation is a crucial component for the successful implementation of robotic systems, relying on sensors such as cameras, LiDAR, and IMUs. However, in real-world scenarios, the performance of these sensors is degraded by challenging environments, e.g. adverse weather conditions and low-light scenarios. The emerging 4D imaging radar technology is capable of providing robust perception in adverse conditions. Despite its potential, challenges remain for indoor settings where noisy radar data does not present clear geometric features. Moreover, disparities in radar data resolution and field of view (FOV) can lead to inaccurate measurements. While prior research has explored radar-inertial odometry based on Doppler velocity information, challenges remain for the estimation of 3D motion because of the discrepancy in the FOV and resolution of the radar sensor. In this paper, we address Doppler velocity measurement uncertainties. We present a method to optimize body frame velocity while managing Doppler velocity uncertainty. Based on our observations, we propose a dual imaging radar configuration to mitigate the challenge of discrepancy in radar data. To attain high-precision 3D state estimation, we introduce a strategy that seamlessly integrates radar data with a consumer-grade IMU sensor using fixed-lag smoothing optimization. Finally, we evaluate our approach using real-world 3D motion data.

关键词： radar imaging

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Design of T/R Module Based on SIP 16

Design of T/R Module Based on SIP

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16th International conference on Microwave and Millimeter Wave technology (ICMMT)

作者： Kang Kai Li Baoxin Yan Shaomin Xian Res Inst Nav Technol Xian 710071 Peoples R China

ISBN: (数字)9798350389968

ISBN: (纸本)9798350389968

SIP technology has the characteristics of small module size, high reliability and high production efficiency. The assembly process of T/R module based on SIP modules is simple and easy to achieve rapid automated production, which effectively reducing the cost of T/R module. In this paper, A miniaturized and high performance x-band T/R module has been developed based on two SIP modules, which is applied in active phased array radar equipment.

关键词： SIP T/R module Phased array radar

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