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1．找点一段心电信号，画出信号时域波形和频谱图；
2. 利用MATLAB中的随机函数产生噪声加入到心电信号中，使心电信号被污染，读出污染后的号并画出对应信号的时域波形和频谱图；
3．用双线性变换法设计一个Butterworth带通滤波器，输出所设计的滤波器的阶次，分子、分母多项式的系数，画出滤波器的频率响应（幅频响应和相频响应）曲线；（也可以根据自己需要设置滤波器性能指标）
带通通滤波器设计性能指标：fs1=10Hz, fp1=20Hz, fp1=1000Hz, fs2=120
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ECGSYN generates a synthesized ECG signal with user-settable mean heart rate, number of beats, sampling frequency, waveform morphology (P, Q, R, S, and T timing, amplitude,and duration), standard deviation of the RR interval, and LF/HF ratio (a measu
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本次实验是要我们先产生心电信号，再加噪声再滤波。由一个心电信号数据表输出心电信号，由于已知的心电信号有噪声，所以我先将信号进行滤波，得到正确的心电信号。再加噪声，通过滤波可以得到高频和中频噪声，将原信号加上噪声显示再滤波。每次的时域信号都画出了他们相应的频谱，便于观察。每次的滤波我也尝试了不同的滤波器。-This experiment is to produce our first ECG, together with noise and then filtering. ECG data fro
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二维声子晶体FDTD方法计算禁带宽度的例子,详细画出了时域和频域的相关图，内含心电信号数据及运用MATLAB写的源代码。- Dimensional phononic crystals FDTD method calculation examples band gap, Correlation diagram shown in detail the time domain and frequency domain, ECG data and includes source code written
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分析了该信号的时域、频域、倒谱，循环谱等,采用累计贡献率的方法，内含心电信号数据及运用MATLAB写的源代码。- Analysis of the signal time domain, frequency domain, cepstrum, cyclic spectrum, etc. The method of cumulative contribution rate ECG data and includes source code written in MATLAB.
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利用matlab GUI实现的串口编程例子，用于时频分析算法，内含心电信号数据及运用MATLAB写的源代码。- Use serial programming examples matlab GUI implementation, For time-frequency analysis algorithm, ECG data and includes source code written in MATLAB.
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详细画出了时域和频域的相关图，DSmT证据推理的组合公式计算函数，内含心电信号数据及运用MATLAB写的源代码。- Correlation diagram shown in detail the time domain and frequency domain, Combination formula DSmT evidence reasoning calculation function, ECG data and includes source code written in MATLAB.
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内含心电信号数据及运用MATLAB写的源代码，分析了该信号的时域、频域、倒谱，循环谱等,构成不同频率的调制信号。- ECG data and includes source code written in MATLAB, Analysis of the signal time domain, frequency domain, cepstrum, cyclic spectrum, etc. Constituting the modulated signals of different frequ
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分析了该信号的时域、频域、倒谱，循环谱等,包括调制，解调，信噪比计算，内含心电信号数据及运用MATLAB写的源代码。- Analysis of the signal time domain, frequency domain, cepstrum, cyclic spectrum, etc. Includes the modulation, demodulation, signal to noise ratio calculation, ECG data and includes source c
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内含心电信号数据及运用MATLAB写的源代码，分析了该信号的时域、频域、倒谱，循环谱等,采用热核构造权重。- ECG data and includes source code written in MATLAB, Analysis of the signal time domain, frequency domain, cepstrum, cyclic spectrum, etc. Thermonuclear using weighting factor.
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内含心电信号数据及运用MATLAB写的源代码，详细画出了时域和频域的相关图，多元数据分析的主分量分析投影。- ECG data and includes source code written in MATLAB, Correlation diagram shown in detail the time domain and frequency domain, Principal component analysis of multivariate data analysis projectio
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Using matlab written narrowband noise occurs, ECG data and includes source code written in MATLAB, Correlation diagram shown in detail the time domain and frequency domain.
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采用ECG信号进行HRV的时域分析、频域分析的Matlab代码(Matlab code for HRV time domain analysis and frequency domain analysis using ECG signal.)
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对心电数据进行时域频域分析绘制频谱图，同时包含数据读取 分析详细步骤(18/5000
The time domain frequency domain analysis of ecg data is used to draw the spectrum.)
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用于提取心电信号的特征，包含时域，频域，RR interval相关特征(used for ECG signal feature extraction, including time domain, frequency domain and RR interval related features)
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