pca

語音信號是基於時間軸上的一維數位信號，在這裏主要是對語音信號進行頻域上的分析。在信號分析中，頻域往往包含了更多的資訊。對於頻域來說，大概有8種波形可以讓我們分析：矩形方波，鋸齒波，梯形波，臨界阻尼指數脈衝波形，三角波，餘旋波，余旋平方波，高斯波。對於各種波形，我們都可以用一種方法來分析，就是傅立葉變換：將時域的波形轉化到頻域來分析。(Voice signal is based on the timeline of one-dimensional digital signal, where mainly the speech signal in frequency domain analysis. In signal analysis, frequency domain often contains more information. For the frequency domain for about 8 allows us to analyze waveforms: rectangular square wave, sawtooth, trapezoidal wave, the critical damping index pulse, triangle wave, I spin wave, I spin square wave, Gaussian. For all waveforms, we can analyze in a way that is Fourier transform: the transformation of time domain waveform into the frequency domain to analyze)

trai tim tinh yeu trong ngay valentine

说明：  根据所给的电力系统，编制短路电流计算程序，通过计算机进行调试，最后完成一个切实可行的电力系统计算应用程序。通过自己设计电力系统计算程序使同学们对电力系统分析有进一步理解，同时加强计算机实际应用能力的训练(According to the power system, the preparation of short-circuit current calculation procedures, through the computer debugging, and finally complete a practical calculation of power system applications. Power system through their computer program designed to make students have a better understanding of the power system analysis, while strengthening the training of the practical application of computer)

介绍了butterworth的二自由度的实现(Describes two degrees of freedom to achieve butterworth)

描述了matlab的一些实际应用，让你更加了解matlab的其他方面知识(Description of matlab the classic tutorials, step by step so you learn to matlab from entry to the master)

量子遗传算法MATALB源码 经过测试可以使用.(Quantum genetic algorithm source MATALB code go though the test and it can work.)

This code simulates QPSK modulation on base band. This code has been written on Matlab and it will be very useful I think! :)

说明：  有限元六面体单元MATLAB代码，有限元，FEM，六面体单元，等参元(Finite element hexahedral element MATLAB code)

说明：  该程序中提供了用matlab描述的有关滤波器的设计源代码(sfdgfdgfhgjhkjh)

4各向异性双树复小波包变换 石霏 应用科学学报 2008-07-15 期刊(4 anisotropic dual tree complex wavelet packet transform Shi Fei applied science journal proceedings of the 2008-07-15)