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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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分子动力学,用于lammps下聚合物拉伸的input文件和势文件CxN output
说明: 分子动力学,用于lammps下聚合物拉伸的input文件和势文件(molecular dynamics, used in lammps for polymer uniaxial, input file)
- 2020-07-09 15:58:55下载
- 积分:1
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Source Code Source Code Source Code Source Code Source Code Source Code
Source Code Source Code Source Code Source Code Source Code Source Code-Source Code Source Code Source Code Source Code Source Code Source Code Source Code Source Code Source Code Source Code Source Code
- 2022-09-24 11:25:03下载
- 积分:1
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planets
说明: planet示例演示了如何实现一个应用程序,该应用程序结合了使用基于three.js库的Canvas3D呈现和Qt Quick 2D元素。这个例子展示了我们太阳系的八颗行星和太阳。(The Planets example demonstrates how to implement an application that combines the use of three.js library-based Canvas3D rendering with Qt Quick 2D elements. The example shows the eight planets of our Solar System with the Sun.)
- 2020-06-25 18:00:01下载
- 积分:1
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simulation code about 4G system in cellphone OFDM.
From transmitter ,channel ,r...
simulation code about 4G system in cellphone OFDM.
From transmitter ,channel ,receiver..etc.
-simulation code about 4G system in cellphone OFDM.
From transmitter ,channel ,receiver..etc.
- 2022-04-17 12:41:29下载
- 积分:1
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Umvlx
说明: 把AutoCAD的VLX文件反编译成FAS文件(Decompiles VLX files of AutoCAD into FAS files)
- 2020-08-10 09:48:28下载
- 积分:1
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Addition_Windows 应用程序
执行加法 2 nos 的程序算法。这是一个简单的程序来帮助初学者来说,在 c# 中启动 windows 的应用程序。
- 2022-12-13 11:10:04下载
- 积分:1
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Navision ERP 极品补丁,控制ERP在线人数根据不同的条件弥补Navision ERP 的不足。...
Navision ERP 极品补丁,控制ERP在线人数根据不同的条件弥补Navision ERP 的不足。-Explorer patch, control the number of online ERP under different conditions compensate for the shortcomings of ERP Explorer.
- 2023-07-29 02:45:04下载
- 积分:1
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This system is a competition I took part in ESRI works mainly use the GIS capabi...
本系统是我参加ESRI大赛的一个作品
主要利用GIS功能对水土流失模型USLE中的各个因子的提取(如根基降雨量站点插值生成等值线,利用等高线生成TIN提取坡度,坡向等)再生成专题图输出。系统包含数据采用的ACCESS,有对数据库的通用操作,以及各种绘图分析,如对年、月、日的降雨量,流量等的图形对比分析等等。系统功能还算比较完善。
是基于VB6.0+ArcEngine9.2开发,皮肤界面用的是Activebar3.0
里面的数据比较大,不便上传,需要的可向我索要。-This system is a competition I took part in ESRI works mainly use the GIS capabilities of the USLE soil erosion model for the extraction of the various factors (such as the foundations of rainfall site, contour interpolation, using contour lines generated TIN extraction slope, aspect, etc. ) and then generate the thematic map output. System contains the data used in ACCESS, there is a common database operations, and a variety of mapping analysis, such as year, month, day of rainfall, flow, etc. graphic correlation and so forth. Relatively perfect system functions fairly. Is based on VB6.0+ ArcEngine9.2 development, the skin interface, using a relatively large data inside Activebar3.0, inconvenience upload, need to be to my request.
- 2023-06-23 08:40:03下载
- 积分:1
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全民奇迹
全民奇迹手游源代码!很不错的,大家可以学习一下!比较稀有请珍藏!(National miracle hand travel source code!)
- 2018-08-24 10:24:28下载
- 积分:1