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This project is used to eleminate the noise in the E.C.G wave form using wavelet transform. thecode is written by using matlab scripting.

function Px = music(x,p,M) MUSIC Frequency estimation using the MUSIC algorithm. ----- USAGE Px=music(x,p,M) The input sequence x is assumed to consist of p complex exponentials in white noise. The frequencies of the complex exponentials and the variance of the white noise are estimated using the MUSIC algorithm. x : input sequence p : number of complex exponentials to find M : number of noise eigenvectors to use The frequency estimates are found from the peaks of the pseudospectrum Px.

THIS SPECIFICATION IS PROVIDED AS IS WITH NO WARRANTIES WHATSOEVER, INCLUDING ANY WARRANTY OF MERCHANTABILITY, FITNESS FOR ANY PARTICULAR PURPOSE, OR ANY WARRANTY OTHERWISE ARISING OUT OF ANY PROPOSAL, SPECIFICATION OR SAMPLE.

说明：  内附有弹道导弹弹道要求及过程，有完整的matlab程序，可以借鉴学习。自己大三时的远程火箭弹道学大作业。(t includes ballistic missile trajectory requirements and process, complete matlab program, which can be used for reference and learning. My junior year of long-range rocket ballistics homework.)

实现频谱分析。能显示信号与频谱图。主要是对正弦信号和三角波进行一维FFT变换，得到频谱图。(To achieve spectral analysis. Shows the signal with the frequency spectrum. Sinusoidal signal and triangular wave one-dimensional FFT algorithm to obtain the frequency spectrum.)

To encode an input stream into a specified space time block code.

This prorgam calculates Bit error rate on awgn channel with a particular Eb/No values and plot the graph of BEP(Bit Error Probability) against Eb/No.

说明：  matlab下数字信号处理实现例程，包括FFT进行信号频谱分析，窗函数法设计FIR滤波器，IIR滤波器的实现等(matlab under the realization of digital signal processing routines, including the FFT signal spectral analysis, the window function design FIR filters, IIR filters to achieve such)

算法文件，可以通过这个程序进行简单的计算拉格朗日转化，是一个简单易用的FFT程序！(algorithm, the procedure can be conducted through simple calculation Lagrange conversion it is an easy-to-use procedures FFT!)

这是一种很好的画FFT谱matlab程序，里面讲解详细，一看就懂，很实用的(This is a very good picture FFT spectrum matlab, which explain in detail, a see understand, very practical )