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纳米位移传感器最小检测信号评述 被引量:3
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作者 王佳 路刚 《传感器技术》 CSCD 1998年第1期1-5,共5页
综合分析了各种纳米位移传感器的特性及灵敏度。通过传感方法和传感结构,运用统一的模型进行定量分析和比较。得出了各种传感器最小检测信号的计算公式及理论值。
关键词 纳米位移传感器 结构 最小检测信号 传感器
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雷达跟踪目标抖动及解决方法
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作者 陈春杰 《中国新技术新产品》 2013年第6期3-4,共2页
在雷达接收机系统设计中,动态范围是一个关键性的指标。在某雷达系统中,动态范围设计不满足实际应用的需要,导致接收机系统出现饱和、雷达跟踪目标抖动。本文从系统设计的角度,阐述了系统动态范围的设计、及如何提高动态范围的方法。
关键词 动态范围 自动增益控制 最小检测信号 噪声系数
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Application of Holter ECG Signal Analysis Based on Wavelet and Data Mining Technique
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作者 余辉 谢远国 +1 位作者 周仲兴 吕扬生 《Transactions of Tianjin University》 EI CAS 2004年第2期126-129,共4页
A new model based on dyadic differential wavelet was developed for detecting the R peak in Holter ECG signal according to the design of data mining. The Mallat recursive filter algorithm was introduced to calculate wa... A new model based on dyadic differential wavelet was developed for detecting the R peak in Holter ECG signal according to the design of data mining. The Mallat recursive filter algorithm was introduced to calculate wavelet and optimize the detection algorithm which is based on the equivalent filter technique. The detection algorithm has been verified by MIT arrhythmia database with a high efficiency of 99%. After optimization, the algorithm was put into clinical experiment and tested in the Air Force Hospital in Tianjin for about two months. After about 108 hearts beating test of more than 100 patients, the total efficient detection rate has reached 97%. Now this algorithm module has been applied in business software and shows perfect performance under the complex conditions such as the inversion of heart beating, the falling off of the electrodes, the excursion of base line and so on. 展开更多
关键词 WAVELET data mining signal detection ELECTROCARDIOGRAM dyadic wavelet R peak detection
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