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APPLICATION OF FRACTAL THEORY IN TRANSIENT CHAOTIC SIGNAL DETECTION
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作者 HE Wan-xun(何万迅) +1 位作者 SHI Wen-kang(施文康) 《Journal of Shanghai Jiaotong university(Science)》 EI 2002年第1期4-7,共4页
According to the definition of correlation dimension in fractal theory, this paper presented a method to determine and assess noise part in detected transient signal. Such work is essential to decrease the noise part ... According to the definition of correlation dimension in fractal theory, this paper presented a method to determine and assess noise part in detected transient signal. Such work is essential to decrease the noise part in the detected signal. It is proved that heart period signal (HPS) is one typical sort of transient chaotic signal. Through experiment and simulation, the analysis of chaotic HPS in the detected signal was done. In the end, we deepen the researches on attractor dimension of HPS for persons who are different in age. 展开更多
关键词 FRACTAL correlation DIMENSION CHAOS ATTRACTOR DIMENSION HEART period signal ELECTROCARDIOGRAPH
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Target recognition based on modified combination rule 被引量:16
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作者 Chen Tianlu Que Peiwen 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 2006年第2期279-283,共5页
Evidence theory is widely used in the field of target recognition. The invalidation problem of this theory when dealing with highly conflict evidences is a research hotspot. Several alternatives of the combination rul... Evidence theory is widely used in the field of target recognition. The invalidation problem of this theory when dealing with highly conflict evidences is a research hotspot. Several alternatives of the combination rule are analyzed and compared. A new combination approach is proposed. Calculate the reliabilities of evidence sources using existing evidences. Construct reliabilities judge matrixes and get the weights of each evidence source. Weight average all inputted evidences. Combine processed evidences with D-S combination rule repeatedly to identify a target. The application in multi-sensor target reeognition as well as the comparison with typical alternatives all validated that this approach can dispose highly conflict evidences efficiently and get reasonable reeognition results rapidly. 展开更多
关键词 evidence theory combination rule conflict evidences target recognition data fusion.
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电容式称重传感器
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作者 张犇 蔡萍 +1 位作者 SHEN Sheng-pei 沈生培 《传感器技术》 CSCD 北大核心 2001年第6期46-48,共3页
介绍了电容式称重传感器的结构 ,具体分析了其测量电路 ,提供了相应的实验数据。实验数据表明该电容式传感器具有很好的稳定性、重复性和无滞后性。具有一定的实用价值。
关键词 称重传感器 测量电路 电容式传感器
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