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

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Laser field imaging through Fourier transform heterodyne 4

Laser field imaging through Fourier transform heterodyne

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conference on Laser radar technology and Applications IV

作者： Cooke, BJ Galbraith, AE Laubscher, BE Strauss, CE Olivas, NL Grubler, AC Univ Calif Los Alamos Natl Lab Los Alamos NM 87545 USA

ISBN: (纸本)0819431818

We present a detection process capable of directly imaging the transverse amplitude, phase, and Doppler shift of coherent electromagnetic fields. Based on coherent detection principles governing conventional heterodyned radar/LADAR systems, Fourier Transform Heterodyne incorporates transverse spatial encoding of the reference local oscillator for image capture. Appropriate selection of spatial encoding functions allows image retrieval by way of classic Fourier manipulations. Of practical interest: (i) imaging may be accomplished with a single element detector/sensor requiring no additional scanning or moving components, (ii) as detection is governed by heterodyne principles, near quantum limited performance is achievable, (iii) a wide variety of appropriate spatial encoding functions exist that may be adaptively configured in real-time for applications requiring optimal detection, and (iv) the concept is general with the applicable electromagnetic spectrum encompassing the RF through optical.

关键词： coherent field imaging laser imaging laser radar heterodyne detection

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Potentials of radar sensor detecting the presence of an imitated user for optimising short-range presence-sensing lighting in homes

Potentials of radar sensor detecting the presence of an imit...

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2023 International conference on the Built Environment in Transition, CISBAT 2023

作者： Sithravel, RatnaKala Landré, Jérôme Hurtig-Wennlöf, Anita Aries, Myriam Department of Construction Engineering and Lighting Science School of Engineering Jönköping University Jönköping Sweden Department of Computer Science and Informatics School of Engineering Jönköping University Jönköping Sweden Department of Natural Science and Biomedicine School of Health and Welfare Jönköping University Jönköping Sweden

Current presence-sensing technologies for energy-efficient lighting control and building optimisation are (i) catered to commercial and institutional environments, and (ii) focused on lamp technology and occupancy detection. They often ignore user behaviour characteristics, which significantly influence energy consumption. Therefore, this study aims to identify alternative sensing techniques as part of a lighting control system that can energy-efficiently support user's behavioural needs in mixed-function residential spaces. An exploratory study investigated the optimal placement of a non-wearable radar sensor to detect an imitated user's breathing frequency at varying pre-set horizontal distance positions, and the sensor's performance was validated with a spirometer. The procedure measured a balloon's radar-detected distance, radar-detected breathing frequency, and spirometer-registered breathing frequency at each pre-set position. The radar sensor detected all simulated breathing frequencies with almost 100% data accuracy but was not comparable in detecting all distances. The radar offers a less intrusive short-range presence-sensing for homes, accurately detecting breathing frequencies in a contactless way between 0.2m to 0.8m. Further investigations are recommended to develop radar sensing that could predict lighting options based on user's objective feedback. © 2023 Institute of Physics Publishing. All rights reserved.

关键词： Energy utilization

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Board 103: Solar-Powered Car Speed radar Measurement, Display, and Logging System

Board 103: Solar-Powered Car Speed Radar Measurement, Displa...

引用

2023 ASEE Annual conference and Exposition - The Harbor of Engineering: Education for 130 Years, ASEE 2023

作者： Ciko, Anthony Cortes, Yave Jones, Josiah Andrew Sohail, Jimmy Blinder, Alex Azizi, Mohsen New Jersey Institute of Technology United States

Studies have shown that there is a 10% fatality rate when a pedestrian is struck by a vehicle moving at the speed of 20 (mph), and the rate scales up to 90% at the speed of 40 (mph). Moreover, the residential areas with radar speed monitors are shown to be safer in terms of accident probability. Motivated by these statistics, in this National Science Foundation sponsored senior design project a speed radar system is designed and developed. The components, functionalities, and objectives of the project are listed as follows: (i) A camera will detect and identify a vehicle and distinguish it from other objects;(ii) a radar sensor will measure the speed of the vehicle;(iii) a microprocessor (Raspberry Pi) will acquire the speed data, send it to the display, and analyze and log it in a server;and (iv) a stand-alone solar Photovoltaic system will provide electrical power to and guarantee the continuous operation of the entire system. This senior design project was conducted by a group of undergraduate students in the electrical and computer engineering technology program at New Jersey Institute of technology. © American Society for Engineering Education, 2023.

关键词： Solar energy

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Design Simulation of MEMS Based Shockwave Pressure sensor for Test Evaluation Applications 1

Design Simulation of MEMS Based Shockwave Pressure Sensor fo...

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1st International conference on Range technology, ICORT 2019

作者： Dey, Prithu Padhy, Sankarsan Bose, Aniruddha Proof Experimental Establishment Defense Research Development Organizatiomn Chandipur Balasore Odisha India

ISBN: (纸本)9781728113531

During dynamic testing evaluation of different armaments stores, recording of different parameters related to internal, external and terminal ballistics precisely plays a crucial role for the qualitative assessment of the different ammunitions and ordnances. This paper deals with design and simulation of MEMS based pressure sensor which will be used to measure shockwave pressure. Shockwave pressure is used to compute the velocity of the projectile. Three different configurations such as I. Single turn piezoresistor, ii. Four turn meander shaped piezoresistor and iiI. Bossed diaphragm structure have been presented here to design the pressure sensor. The simulation has been performed using FEM based CoventorWare tool. The measurement range of the pressure sensor is up to 10 psi. © 2019 IEEE.

关键词： Pressure sensors

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The Design of Component level software architecture for multi-sensor data fusion system

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International conference on Information technology for Manufacturing Systems (ITMS 2011)

作者： Qin, Ningning Shen, Wenyi Yan, Jun Xu, Baoguo Jiangnan Univ Sch IOT Engn Wuxi Peoples R China

ISBN: (纸本)9783037851494

Through investigating the architecture of multi-sensor data fusion system, a universal software architecture which can be used in distributed multi-radar fusion systems is proposed in this paper. In this architecture, functionally independent modules will be extracted from system, it will be standardized as components by object-oriented techniques, and the interface specifications of all the modules are also specified. Aiming at the different objects, system flow and modules can be framed quickly by selecting or expanding proper components based on different scenes feature and object properties. The architecture improves software reusability and scalability, and is propitious to increase software development efficiency.

关键词： data fusion distributed system component level software architecture

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Ground-based radar Networks for Urban Air Mobility: Design Considerations and Performance Analysis 41

Ground-based Radar Networks for Urban Air Mobility: Design C...

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41st IEEE/AIAA Digital Avionics Systems conference, DASC 2022

作者： Aievola, Rosario Causa, Flavia Fasano, Giancarmine Manica, Luca Gentile, Giacomo Dubois, Michael University of Naples Federico Ii Department of Industrial Engineering Naples Italy Collins Aerospace Applied Research & Technology Trento Italy Raytheon Intelligence & Space Raytheon Technologies MarlboroughMA United States

ISBN: (数字)9781665486071

ISBN: (纸本)9781665486071

This paper is aimed at exploring the design space and preliminary investigating the performance of ground-based radar networks for low altitude airspace surveillance in Urban Air Mobility scenarios. An overview of radar network design considerations is given focusing on sensor characteristics and network coverage in urban environments. sensor placement strategies are discussed which optimize tracking performance in volumes of interest for a given number of sensors. Assuming a network of sensors with given specifications, tracking performance is assessed in realistic simulation environments considering different data fusion architectures. This analysis points out the advantages of agile sensing based on adaptive scanning. © 2022 IEEE.

关键词： Air mobility

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The advanced linked extended reconnaissance & targeting technology demonstration project

The advanced linked extended reconnaissance & targeting tech...

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conference on Diplay Technologies and Applications for Defense, Security, and Avionics ii

作者： Edwards, Mark Gen Dynam Canada Ottawa ON K2H 5B7 Canada

ISBN: (纸本)9780819471475

The Advanced Linked Extended Reconnaissance & Targeting (ALERT) technology Demonstration (TD) project is addressing many operational needs of the future Canadian Army's Surveillance and Reconnaissance forces. Using the surveillance system of the Coyote reconnaissance vehicle as an experimental platform, the ALERT TD project aims to significantly enhance situational awareness by fusing multi-sensor and tactical data, developing automated processes, and integrating beyond line-of-sight sensing. The project is. exploiting important advances made in computer processing capability, displays technology, digital communications, and sensor technology since the design of the original surveillance system. As the major research area within the project, concepts are discussed for displaying and fusing multi-sensor and tactical data within an Enhanced Operator Control Station (EOCS). The sensor data can originate from the Coyote's own visible-band and IR cameras, laser rangefinder, and ground-surveillance radar, as well as from beyond line-of-sight systems such as mini-UAVs and unattended ground sensors. Video-rate image processing has been developed to assist the operator to detect poorly visible targets. As a second major area of research, automatic target cueing capabilities have been added to the system. These include scene change detection, automatic target detection and aided target recognition algorithms processing both IR and visible-band images to draw the operator's attention to possible targets. The merits of incorporating scene change detection algorithms are also discussed. In the area of multi-sensor data fusion, up to Joint Defence Labs level 2 has been demonstrated. The human factors engineering aspects of the user interface in this complex environment are presented, drawing upon multiple user group sessions with military surveillance system operators. The paper concludes with Lessons Learned from the project. The ALERT system has been used in a number of C41SR f

关键词： reconnaissance surveillance multi-sensor data fusion image processing automatic target detection human factors in displays

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Bragg Peak Detection Using Compatible Mother Wavelet on Oceanographic HF radar Signals 15

Bragg Peak Detection Using Compatible Mother Wavelet on Ocea...

引用

15th International conference on Information technology and Electrical Engineering, ICITEE 2023

作者： Iswandi Hidayat, Risanuri Wibowo, Sigit Basuki Universitas Gadjah Mada Faculty of Engineering Department of Electrical Engineering and Information Technology Yogyakarta55281 Indonesia

ISBN: (纸本)9798350304466

High-frequency surface wave radar (HFSWR) has been proven as a long-range sensor for estimating the sea state. The coupling between radar wave and dynamic sea surface produces the Bragg components in the Doppler space of received signals. These components contain the sea-state information, which can be extracted by using an inversion algorithm. However, the dense traffic and any natural phenomena on the HF spectrum cause the received signal to be mixed up with clutters and interference, sometimes overlap in time, frequency, and Doppler domain. This research considered the discrete wavelet transformation (DWT) to decompose the radar signal and highlight the Bragg peaks. The choice of mother wavelet highly influences the wavelet. Thus, the scrutiny was initialized by selecting the mother wavelet as reported in this paper. The results show the 6-order Daubechies (db6) and 3-5 pairs of biorthogonal (bior3.5) functions at level 3 of DWT can detect the proper position of Bragg peaks. © 2023 IEEE.

关键词： Discrete wavelet transforms

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A Methodology for Improving Vegetation Representation and Health exploiting a Semantic Robotic System 11

A Methodology for Improving Vegetation Representation and He...

引用

11th IEEE International conference on Semantic Computing (ICSC)

作者： D'Auria, Daniela Persia, Fabio Univ Naples Federico II Naples Italy Free Univ Bozen Bolzano Bolzano Italy

ISBN: (纸本)9781509042845

The continuous development of technology is having a strong effect on all the heterogeneous research areas and contexts, including production agriculture. As a result, precision farming technologies have been increasingly recognized for their potential ability for improving agricultural productivity, reducing production cost, and minimizing damage to the environment. In this context, the main goal of this paper is to present a methodology that can be applied to extract semantic information, more specifically some vegetative indices, from plants, in order to further improve the vegetation representation and health by means of a specific semantic robotic system.

关键词： Agriculture Laser radar Global Positioning System sensor systems Indexes Semantics

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Mission studies of Japanese small satellite

Mission studies of Japanese small satellite

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conference on sensors, Systems, and Next-Generation Satellites ii

作者： Ono, M Machida, T Moriyama, T Remote Sensing Technol Ctr Japan Tokyo Japan

ISBN: (纸本)0819429570

This paper introduces the Hypersat and Mission Demonstration Satellite programs, which are small satellite programs in the National Space Development Agency of Japan (NASDA). The goals of the programs are to establish sophisticated microelectronics and mechanics technology;to achieve low cost, high performance satellite;and to quickly respond to the variety of requests from end users. One author has an idea for a high-resolution optical imager which is small and light enough to be launched on this small satellite. This idea is prented in detail. A wide swath strip mode operation SAR design is also introduced.

关键词： small satellite optical sensor synthetic aperture radar Earth observation

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