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心电信号检测与分类算法的研究
说明: (1)心电信号预处理
心电信号是一种低频且含有众多噪声干扰的信号。针对心电信号存在的
噪声干扰问题,本文采用了平稳小波变换结合双变量阈值的方法对其进行去 噪处理。通过对心电信号进行八层平稳小波变换,得到不同的小波系数,采
用双变量阈值函数表达式对其进行处理得到新的小波系数,最后进行逆平稳
小波变换实现小波重构,完成心电信号去噪。Matlab 仿真结果显示,本文算
法的准确率较高,信噪比达到 84.5934dB。 (2)心电信号波形识别
反映心电信号的特征部分往往是信号的突变点,因此需要对心电信号的
突变点进行识别检测。本文通过采用二次 B 样条小波对去噪后的心电信号
进行四层平稳小波变换,在第四尺度上对心电信号的 R 波进行波形检测。 在第二尺度上以正确检测 R 波为基础,实现 Q 波和 S 波的波峰、起始点及
终止点检测。为了保证检测精度,本文设置了误检漏检机制。最后在第五尺 度实现了 P 波和 T 波波峰、起始点及终止点检测。仿真结果表明本文的算
法检测精度较高,准确率达到 99.81%。(This paper proposes an efficient method of ECG signal denoising using the adaptive dualthreshold filter (ADTF) and the discrete wavelet transform (DWT). The aim of this method isto bring together the advantages ofthese methods in order to improve the filtering ofthe ECGsignal. The aim of the proposed method is to deal with the EMG noises, the power lineinterferences and the high frequency noises that could perturb the ECG signal. This algorithm is based on three steps of denoising,)
- 2020-03-06 12:37:15下载
- 积分:1
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This procedure demonstrated a half
本程序演示了半满方式的AD卡数据采集系统的实现方式和具体应用-This procedure demonstrated a half-full way of the AD card data acquisition system realize the ways and specific applications
- 2023-08-12 06:20:02下载
- 积分:1
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matlab实用源代码
1.图像反转 2.灰度线性变换 3.非线性变换 4.直方图均衡化 5. 线性平滑滤波器 6.中值滤波器(1. image inversion, 2. gray linear transformation, 3. nonlinear transformation, 4. histogram equalization, 5. linear smoothing filter, 6. median filter)
- 2017-11-21 11:27:38下载
- 积分:1
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twist-s
说明: Fortran扭曲碳管等二维材料,高质量的分子动力学建模学习入门,很有用的短期提升。(High quality molecular dynamics modeling learning introduction, very useful for short-term promotion.)
- 2020-12-01 20:04:21下载
- 积分:1
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水声模型分析建模
说明: 针对不同水深模型分别展开评估建模,有详细的程序代码。以及对应的word文章进行简介描述.(For different water depth models, evaluation models are developed separately, and detailed program codes are provided. And the corresponding word articles are briefly described.)
- 2019-07-05 13:05:57下载
- 积分:1
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这是一个简单的计算器,C++ programminng文件。
This a simple calculator C++ programminng file.
This can be used to study the programming part of C++ language.-This is a simple calculator C++ programminng file.
This can be used to study the programming part of C++ language.
- 2022-01-30 12:31:10下载
- 积分:1
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Serial
说明: labviwe编写的串口助手,各种功能基本齐全(Serial Port Assistant)
- 2020-06-16 12:28:32下载
- 积分:1
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6个C# TreeView树形菜单控件
6个C# TreeView树形菜单控件,制作树形菜单用得上哦,分别是:Clifton.Tools.Compiler、Clifton.Tools.Data、Clifton.Tools.Xml、Clifton.Tools.Strings、Clifton.Windows.Forms、GeneralTreeDemo。示例运行效果如截图所示。
- 2022-02-06 14:17:54下载
- 积分:1
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OpenProtocol_Specification_通讯
说明: 拧紧机对外提供的接口, Atlas Copco Tools and Assembly Systems(Interface provided by tightening machine)
- 2019-06-19 15:04:24下载
- 积分:1
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合成孔径雷达图像处理
说明: insar图像处理书籍,基本原理,数据处理算法,基本应用适合初学者(InSAR image processing books, basic principles, data processing algorithms, basic applications for beginners)
- 2020-06-21 06:00:02下载
- 积分:1