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matlab-code_QRS-detection
qrs detection in ECG signals
- 2013-07-13 13:01:25下载
- 积分：1
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shanon2
this code receive a string from input and calculation shanon code
- 2012-05-19 01:45:12下载
- 积分：1
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computerwork_2
2. 设 是窄带信号，定义 是在 区间上均匀分布的随机相位。 是寬带信号，它是一个零均值、方差为1的白噪音信号e(n)激励一个线性滤波器而产生，其差分方程为 。
1） 计算 和 各自的自相关函数，并画出其函数图形。根据此选择合适的延时，以实现谱线增强。
2） 产生一个 序列。选择合适的 值。让 通过谱线增强器。画出输出信号 和误差信号e(n)的波形，并分别与 和 比较。
(Computer Experiments:
1. Consider an AR process x(n) defined by the difference equation
where v(n) is an additive white noise of zero mean and variance .The AR parameters and are both real valued:
a) Calculate the noise variance such that the AR process x(n) has unit variance .Hence , generate different realization of the process x (n).
b) Given the input x (n), an LMS filter of length M = 2 is used to estimate the unknown AR parameters and . The step size is assigned the value 0.05. Compute and plot the ensemble average curve of and by averaging the value of parameters and over an ensemble of 100 different realization of the filter. Calculate the time constant according to the experiment results and compare with the corresponded theoretical value.
c) For one realization of the LMS filter, compute the prediction error
And the two tap-weight errors
and
Using power spectral plots of , show that)
- 2020-06-28 19:40:01下载
- 积分：1
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qqbiaoqing
基于matlab编写的QQ表情程序，内有说明(QQ expression program based on Matlab prepared)
- 2012-05-28 13:31:14下载
- 积分：1
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zeroxing
This code takes speech as input, removes silence region based on zero crossing rate and energy.output of the code is only voiced region of the input speech signal.the input is of the .wav format.
- 2015-02-13 18:06:19下载
- 积分：1
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M-sequence-signal
M序列信号算法仿真在系统辨识中有着很大的应用前景。多谐差相方法辨识精度很高有着很苛刻的要求，要求已知辨识参数个数已知并且需要整周截断。而M序列信号的测试方法没有这个方面的要求。其辨识未知模型时，可以用最小二乘算法观察辨识系统的精度来确定模型的阶次。本算法里面不但给出了用于M序列生成的本原多项式计算方法，同时编写了M序列信号的生成算法，并编写了相关辨识方法的算法。(M sequence signal simulation algorithm for identification in the system have great application prospects. Identification of multi-harmonic differential phase method with high precision has very stringent requirements, demand parameters are known to identify the number of known and need to cut off the whole week. The M sequence signal testing methods do not have this requirements. Its identification unknown model, you can observe the identification system using least-squares algorithm to determine the accuracy of the model order times. This algorithm is used which not only gives the M sequence generated by primitive polynomial method of calculation as well as prepare the M sequence signal generation algorithm, and the preparation of the relevant identification method algorithms.)
- 2009-11-28 14:25:56下载
- 积分：1
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Contrast_Strecthing
Codes for Contrast Stretching Algorithm(Image Processing-Gonzalez).
- 2009-12-15 20:39:36下载
- 积分：1
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sssss
博弈论自适应功率控制中的实现，应用于认知无线电和频谱管理领域(Game Theory Adaptive Power Control in the realization of applied cognitive radio and spectrum management)
- 2012-06-27 17:11:11下载
- 积分：1
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for_codeforge
These are codes for implementing Bandpass filters in MATLAB. Can be used for study in Digital Signal Processing
- 2013-11-15 17:48:26下载
- 积分：1
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pastd_espritDEMO
MIMO雷达下利用PASTd算法进行二维DOA跟踪，通过esprit估计每时刻二维角度(use PASTd to track DOA)
- 2016-11-18 20:08:56下载
- 积分：1
