搜索结果: 136-150 共查到“知识库 传感器技术”相关记录2838条 . 查询时间(0.639 秒)
ROME REBORN – VIRTUALIZING THE ANCIENT IMPERIAL ROME
Laser Radar Sensor integration 3D modeling Virtual Reality Wiki-modeling
2015/10/8
From 1997 to 2007 an international effort involving research groups both in US and Italy, developed a virtual model of ancient
Rome, as it appeared in 320 AD. The primary purpose of the project was ...
开启式高精度霍尔传感器设计
精度因素 开启式结构 霍尔传感器设计 磁芯结构
2016/10/13
针对通用型开启式霍尔传感器产品精度低(一般为1.0 级)的问题，提出了可提升开启式霍尔传感器精度 的系列设计方法。该系列方法涉及产品磁芯设计、霍尔器件选型、结构设计及抗干扰等方面，将其应用于实际产品 开发中，产品精度可提升为0.5 级。该系列设计方法可为相关产品开发人员提供技术参考。
Digitization of optical lever instruments
optical level digitalization DSP CCD linear sensor Wood-Anderson grotta gigante pendulums
2015/9/28
Some classical old-fashioned instruments (such as the Wood-Anderson seismometers), as well as some modern instruments (like the all-quartz made Verbaandert-Melchior tiltmeters), conventionally require...
INTEGRATING MOBILE GEO SENSOR INFORMATION INTO COLLABORATIVE VIRTUAL GLOBES
Geospatial Collaboration 3D Visualisation Virtual Globes Geo Sensor Web Mobile Sensors
2015/9/28
This paper describes the large potential offered by integrating mobile geo sensor data, for example georeferenced video imagery
acquired from micro UAVs, into collaborative 3D geoinformation technol...
基于局域世界的无线传感器网络分簇演化模型
拓扑演化 局域世界 容错性
2015/12/21
当前无线传感器网络无标度演化模型研究往往将网络视为同质网络，且未充分考虑网络在真实情形下的
演化特征，导致所获网络拓扑与实际网络差异明显。因此，基于局域世界理论，考虑无线传感器网络典型分簇结
构、能耗敏感与真实网络中普遍存在的节点与链路退出的动态性行为等特征，提出无线传感器网络分簇演化模型。
该模型与同类研究成果相比，更为接近真实网络情形。利用平均场理论推导出此模型具有无标度特征。通过研究
...
基于频偏估计的无线传感器网络时间同步算法
无线传感器网络 时间同步 低开销 相偏和频偏估计
2015/12/21
针对无线传感器网络经典同步算法稳定性较差，时钟相偏和频偏联合校正算法存在高开销等问题，提出
一种基于频偏估计的无线传感器网络时间同步算法（CSMS 算法）。CSMS 算法采用低开销相偏和频偏估计方法，
提高了成对节点的同步精度和稳定性；结合分层和广播监听构建了同步策略，能够保证算法的稳定性和同步精度，
实现了与邻居节点及根节点的同步，同时优化了同步总开销。实验结果表明，CSMS 算法能够有效...
Developing fiber lasers with Bragg reflectors as deep sea hydrophones
hydrophones Bragg fiber-laser pressure sensors
2015/9/8
The present paper will discuss the work in progress at the Department of Physics of the University of Pisa in collaboration
with the IFAC laboratory of CNR in Florence to develop pressure sensors wit...
提出一种稀疏重构框架下利用幅度实现扩展目标量测划分的方法.利用衍射受限光学系统特性对像平面进行网格采样,建立稀疏重构模型及"超完备字典".通过重构挖掘像元幅度值中的有效信息并基于成像机理对重构出的非目标量测进行抑制处理,利用重构出的亚像元级目标位置、幅度信息实现目标量测的划分.仿真结果表明:信噪比为6 dB时,本文算法比传统方法在实现对所有扩展目标量测的正确划分上提前30s,对目标探测信息能充分利...
agricultural soil monitoring using ground-based radar sensor:the gespas in-field experiment
agricultural soil monitoring ground-based radar sensor gespas in-field experiment
2015/9/1
In this paper we present a microwa ve radar sensor developed for agricultural application . The primary objective was t o develop a new cultivator able to adapt its action according to the in -field s...
An open standard-based sensor web approach for online 3d extraction:using sensor observation service,sensorml and rational function model
standard-based sensor web approach for online sensor observation service,sensorml rational function model
2015/9/1
An open standard-based sensor web approach for online 3d extraction:using sensor observation service,sensorml and rational function model.
Use of multi-platform-sensing for characterisation of land use in river corridors
multi-platform-sensing characterisation river corridors
2015/9/1
The European Water Framework Directive (WFD) aims at implementing strategies to restore the good ecological status of water bodies. This ecological status is characterized by physicochemica l paramete...
Spatial sensor web reference model – a model of architecture for spatial sensor web interconnection
Sensor networks Interoperability Sensor Standards Networks
2015/9/1
In this paper, we introduce a Spatial Sensor Web reference model. Firstly, we present the concept of the Sensor Web and the Spatial Sensor Web. Then we use a layered conceptual model to describe the S...
ASSESSMENT OF A PORTABLE MAPPING TOOL FOR TIME-CRITICAL MANAGEMENT OF DISASTERS
Mobile Mapping Multisensor System Decision Support
2015/8/31
In the field of disaster response, the following paper presents a hand-held mobile mapping tool that can potentially be used to
coordinate field operations, to help navigation of rescue teams and to...
电量传感器高可靠性试验技术
可靠性 筛选度 环境应力
2016/10/13
针对电量传感器产品可靠性愈加突出的问题，总结最高效的电量传感器可靠性筛选试验方法。对电子产 品的可靠性试验技术及其数学模型进行介绍，重点阐述适合电量传感器的环境应力筛选试验项目，对各试验筛选强 度和筛选效率进行探讨，并提出改进建议，可为电量传感器应用行业的产品可靠性研究提供参考。