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ECG--QRS
以软件为主的方法实现QRS波的检测滤波之后的信号一般经过一些
变换以提高QRS波的份量,进而采用一系列阈值进行判别,这些阈值有固定
阈值法,也有可变阈值法。前者由于可能的干扰或高P、高T波的存在,若
其滤波后超过其阈值便会产生假阳性(FP,falsepositive)结果;另外,当心
律失常或QRS波幅度变小,阈值设置过高,会导致漏检产生假阴性(FN,
falsenegative)结果。由于固定阈值的这些缺点,有研究者提出了用可变阈
值检测,以提高检测的精确率,所采用的可变阈值包括幅度阈值、斜率阈值
和时间间隔阈值等。(Give priority to with software method for detecting QRS wave signal after some commonly after filtering
Amount of transformation in order to improve the QRS wave, then using a series of threshold to distinguish, the threshold value is fixed
Threshold value method and variable threshold value method. The former due to the possible interference or the existence of the high P and T waves, if
More than the threshold value is created after the filtering false positives (FP, falsepositive results In addition, be careful
Law of disorder or QRS wave amplitude decreases, threshold is set too high, can lead to leak to produce false negatives (FN,
Falsenegative) results. Due to these disadvantages of fixed threshold, some researchers have proposed using variable threshold
Value detection, in order to improve the precision of detection rate, adopted by the variable threshold including amplitude threshold, the slope threshold
And the time interval threshold, etc.)
- 2014-10-22 09:55:16下载
- 积分:1
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Python-GUI
讲故事小程序,自定义人物事件,GUI功能展示。(Storytelling applet, custom characters and events, GUI functions show.)
- 2014-12-08 04:02:44下载
- 积分:1
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wavelet
说明: 分为三个函数,第一个函数的功能是用于读取ecg信号,找到小波变换模极大序列;第二个函数是子程序,用于多分辨率分解,使用 A trous 算法在分解的过程中,同时给出各级的细节和概貌,它们和原数据有着同样的长度;第三个函数是函数子程序,用于多分辨率分析中的重建。(Divided into three functions, the function of the first function is used to read the ecg signal, find the wavelet transform modulus maxima sequence second function is a subroutine for use in multi-resolution decomposition, the decomposition algorithm using A' trous process, and gives details of all levels and profiles, they are the original data have the same length third function is a function subprogram, for multi-resolution analysis of the reconstruction.)
- 2011-04-14 17:01:51下载
- 积分:1
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5863247PCALDA
Matlab functions: mean variance mean square error
- 2015-04-02 16:55:16下载
- 积分:1
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chuandongxitong
matlab/simulink下建立风机发电传动系统模型(established fan power transmission model matlab/simulink)
- 2014-03-15 17:06:03下载
- 积分:1
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fengsumoxing
风速的随机模型,根据风速的随机性,随着时间的变化而输出随机的风速(Wind speed of the random model, based on the randomness of the wind speed, as the change of time and output random wind speed
)
- 2012-11-12 15:56:28下载
- 积分:1
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OFDM_chnMATLAB
信道估计算法及实现,matlab编写(Channel estimation algorithm and realize, matlab prepared)
- 2007-11-06 13:55:20下载
- 积分:1
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arima
在matlab的环境下实现了自回归移动平均模型(arima)(Matlab environment in the realization of the auto-regressive moving average model (arima))
- 2009-04-11 08:51:40下载
- 积分:1
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control1
异步电机矢量控制的原理图,用matlab建立了一部电机的模型,对矢量控制进行了仿真。(Schematics, vector control of induction motor using matlab model of a motor, vector control simulation.)
- 2012-05-27 15:38:07下载
- 积分:1
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comparison_21022013
COMPARISON OF DIFFERENT MODULATION SCHEMES
- 2013-11-14 16:30:45下载
- 积分:1