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基于电子格栅的无人机防冲突研究
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作者 杨秀玉 朱代武 向越新 《安全与环境工程》 CAS 北大核心 2018年第5期181-184,188,共5页
为解决无人机与移动目标物的潜在冲突,利用全球卫星定位系统(GPS)动态载波相位测量技术获取无人机与移动目标物的相对位置后,以无人机和移动目标物的几何中心点为中心建立椭球形初始电子格栅,在此基础上考虑操纵者反应时间、无人机避让... 为解决无人机与移动目标物的潜在冲突,利用全球卫星定位系统(GPS)动态载波相位测量技术获取无人机与移动目标物的相对位置后,以无人机和移动目标物的几何中心点为中心建立椭球形初始电子格栅,在此基础上考虑操纵者反应时间、无人机避让所需时间、飞行的距离和GPS的定位精度,完善电子格栅。通过建立的移动物体电子格栅可以限定无人机的飞行范围,在两电子格栅相接触时立即做出避让,以避免无人机与移动目标物发生冲突。 展开更多
关键词 无人机 移动目标物 冲突 电子格栅
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Robot motion control in mobile environment
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作者 Iliya V Miroshnik 黄显林 贺杰 《Journal of Harbin Institute of Technology(New Series)》 EI CAS 2003年第3期250-253,共4页
With the problem of robot motion control in dynamic environment represented by mobile obstacles,working pieces and external mechanisms considered, a relevant control actions design procedure has been pro-posed to prov... With the problem of robot motion control in dynamic environment represented by mobile obstacles,working pieces and external mechanisms considered, a relevant control actions design procedure has been pro-posed to provide coordination of robot motions with respect to the moving external objects so that an extension ofrobot spatial motion techniques and active robotic strategies based on approaches of nonlinear control theory canbe achieved. 展开更多
关键词 active robotic systems spatial motion mobile external objects nonlinear control
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Study on Mobile Object Tracking and Intercept Technology Research
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作者 Sun Jun 《International Journal of Technology Management》 2014年第8期131-133,共3页
Background difference method[l] is one of the effective paths of improving robot' s vision reaction ability, and robots use background difference method to find the moving object in vision range and conduct tracking ... Background difference method[l] is one of the effective paths of improving robot' s vision reaction ability, and robots use background difference method to find the moving object in vision range and conduct tracking monitoring of moving objects. Then it uses support vector to conduct learning fitting of moving object, which can effectively predict the moving trend of moving object, and then it fabricates corresponding decision programs to conduct intercept capture of moving objects. 展开更多
关键词 moving object support vector machine(SVM) tracking intercept
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General moving objects recognition method based on graph embedding dimension reduction algorithm 被引量:1
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作者 Yi ZHANG Jie YANG Kun LIU 《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》 SCIE EI CAS CSCD 2009年第7期976-984,共9页
Effective and robust recognition and tracking of objects are the key problems in visual surveillance systems. Most existing object recognition methods were designed with particular objects in mind. This study presents... Effective and robust recognition and tracking of objects are the key problems in visual surveillance systems. Most existing object recognition methods were designed with particular objects in mind. This study presents a general moving objects recognition method using global features of targets. Targets are extracted with an adaptive Gaussian mixture model and their silhouette images are captured and unified. A new objects silhouette database is built to provide abundant samples to train the subspace feature. This database is more convincing than the previous ones. A more effective dimension reduction method based on graph embedding is used to obtain the projection eigenvector. In our experiments, we show the effective performance of our method in addressing the moving objects recognition problem and its superiority compared with the previous methods. 展开更多
关键词 Moving objects recognition Adaptive Gaussian mixture model Principal component analysis Linear discriminant analysis Marginal Fisher analysis
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