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Least Square Estimation Based Mobile Robot Gas Source Localization in Stable-Airflow Environment: ＜正＞Large amount experimental results show that the gas concentration approximates to Gaussian distribution in ...; JIANG Ping~1; 文献传递

视觉注意机制在图像增强中的应用研究被引量：10: 2009年; 将视觉注意机制引入到直方图构造中,并在此基础上提出了一种新的基于灰度级信息量直方图的图像增强算法.该算法利用Itti视觉注意计算模型对图像的显著性进行分析,获得全局显著图;然后,将全局显著图划分为若干等大的子区域,求取各子区域的平均显著值,并做归一化处理,得到子区域的加权统计系数;再将各子区域的灰度级加权统计值相加,得到灰度级信息量直方图;最后,依据直方图均衡化的映射函数,调整灰度级的动态范围.实验结果表明,该算法明显优于经典的GHE算法和AHE算法,具有满意的视觉效果.; 曾明孟庆浩王湘晖邱亚男蒋萍李彦辉; 关键词：图像增强视觉注意机制直方图均衡

基于包容体系结构的机器人气体泄漏源定位: 针对风速/风向变化比较大的环境中气体泄漏源定位问题,提出了基于包容体系结构的机器人融合视/嗅觉信息泄漏源定位方法。在此类环境中由于受湍流的影响气体浓度的分布很难用一个精确的数学模型来描述。本文针对机器人在定位过程中获取传...; 蒋萍张勇; 关键词：机器人; 文献传递

Multi-scale Analysis of Single-point Wind Signals in Outdoor Near-surface Environments: ＜正＞The odor/gas dispersion in atmospheric boundary layer is dominated by airflow.The analysis of the wind spee...; WANG Yang; 文献传递

Odor-Source Location Estimation and Search Using a Movable Sensor Array: ＜正＞Using mobile robot with onboard gas and wind sensors to estimate and search hazardous gas/odor source has g...; ZHANG Su-LinMENG Qing-HaoWU Yu-XiuZENG MingJIA HuaLI Wei; 关键词：ESTIMATION; 文献传递

Consensus based Distributed Concentration-Weighted Summation Algorithm for Gas-Leakage Source Localization Using a Wireless Sensor Network: A distributed estimation of the gas-leakage source location using a wireless sensor network is proposed. The c...; CAO Meng LiMENG Qing HaoWU Yu XiuZENG MingLI Wei

Distributed Gas-Source Localization Based on MMSE Estimation with Cooperative Sensor Networks: ＜正＞Sensor network based gas source localization（GSL） has great application prospect in the fields such as envi...; ZHANG Yong~(1; 文献传递

A Particle Filter Algorithm for Odor Source Localization in Wireless Sensor Network: In this paper,we address the odor source localization （OSL） problem in wireless sensor network.The OSL has pot...; Yong Zhang is with the School of Electrical Engineering and Automation,Tianjin University,Tianjin,300072,China.Qing-Hao Meng is with the School of Electrical Engineering and Automation,Tianjin University,Tianjin,300072,China.Yu-Xiu Wu is with the School of Electrical Engineering and Automation,Tianjin University,Tianjin,300072,China.Ming Zeng is with the School of Electrical Engineering and Automation,Tianjin University,Tianjin,300072,China.; 文献传递

基于FPGA的多路无串扰超声测距系统的设计与实现被引量：7: 2013年; 给出了一种基于现场可编程门阵列(FPGA)的多路无串扰超声测距系统的设计与实施方案。在前期设计的超声收发一体的硬件电路基础上,采用FPGA作为整个测距系统的核心,用于控制编码超声序列的收发及实现基于相关算法的测距。系统中采用有限状态机设计思想,充分利用FPGA中存储器资源。基于前期对不同种类的编码与调制组合性能的评估,本文选择了Gold序列结合二值频移键控调制方式激励超声换能器。为降低回声相关计算的复杂度和减少FPGA内资源占用,采用二值极化相关的方法处理回声信号以捕获渡越时间。实验测试结果表明,该测距系统在35 cm～420 cm的范围内可实现10mm的测距精度,并可有效消除超声串扰。; 孟庆浩边旭东扈佳林曾明; 关键词：超声测距扩频渡越时间现场可编程门阵列

Extremum Seeking Control for Time-varying Scalar Signal: ＜正＞This paper considers the problem of designing controllers to steer a mobile robot,modeled as a nonholonomic...; Jia HuaMeng Qing-HaoWang YangZeng MingZhang Su-LinLi Wei; 文献传递

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国家自然科学基金(60875053)