第三章(一)

说明：  小波信号去噪例子,默认阈值去噪，强制去噪和软阈值去噪三种方法(wavelate-wavedec)

Face moment computation for ellipse fitting

说明：  该程序利用小波多尺度分解，提取近似系数和细节系数重构原图像(It uses wavelet decomposition to extract approximate coefficients and detail coefficients of the original image reconstruction)

正交信号校正法主要用于近红外光谱矩阵的预处理。其原理是将光谱阵与全氮含量阵正交,滤除光谱与因变量Y阵无关的信号,再建立定量校正模型,达到简化模型及提高模型预测能力的目的。(Orthogonal Signal Correction(OSC) removes variance in the X-block which is orthogonal to the Y-block. Such variance is identified as some number of factors (described as components) of the X-block which have been made orthogonal to the Y-block. When applying this preprocessing to new data, the same directions are removed from the new data prior to applying the model.)

MAGNITUDE AND PHASE RESPONSE OF HIGH AND LOWPASS FILTER

This matlab code demonstrates independent component analysis.

扩频通信，从电磁波利用来看，与一般现有的常规通信方式完全不同。扩频通信利用伪随机编码把信息数据（窄带信号）的频谱进行扩展，形成宽带的低功率谱密度信号发射，使用不同的伪随机序列编码，不同通信用户可在同一频段、同一时间工作，互不影响或干扰极小地进行通信。(Spectrum, from the electromagnetic waves used term, and the general existing conventional means of communication is entirely different. Spread spectrum communication using pseudo-random code to the information data (narrowband signal) to extend the spectrum, the formation of low-power spectral density broadband signal transmission, using different pseudo-random sequence of coding, different communication users at the same frequency band, at the same time work, mutual does not affect or interfere with a very small way to communicate.)

matlab7.0的一些资料，是数学建模中的一些应用(Matlab7.0 of some material, is some application of mathematical modeling)

Inpainting the image using examplar based aproch

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