matlabChapter_3

matlab的一些应用性文章(some application articles about matlab)

用拉格朗日n次插值方法 对一系列离散点进行插值(N times with Lagrange interpolation method interpolates a series of discrete points)

This program is used to explain how PCA works and the idea behind the method. This example is given in the ISA book (Chapter 8, simple example) The process is composed of a valve a thermometer and a fermenter. The valve is used to control the flow rate of cooling water. The thermometer is used to measure the temperature of the fermenter.

说明：  测试ukf（卡尔曼滤波器）的matlab源代码，避免ekf的截断误差，使线性化的结果更加准确。(Test ukf (Kalman filter) of the matlab source code, to avoid ekf the truncation error, so that the result of more accurate linearization.)

计算兄弟数，平时练习题，算法比较笨，欢迎指教(Calculate the number of brothers, usually exercises, algorithm is stupid, please advise)

广义预测控制标准程序，单入单出和多入多出的，无扰动情况下(Generalized Predictive Control Program, SISO and MIMO for)

实现输入一串数字，然后matlab可以将数字对应的蜂鸣音播放出来（类似于电话的拨号）(Achieve input a string of numbers, then you can figure corresponding matlab beep play out (similar to dial-up phone))

DTMF(双音多频)是用两个特定的单音频组合信号来代表数字信号的一种编码技术。两个单音的频率不同，代表的数字或实现的功能也不同。可采用8种频率代表电话机上的16个按键，10个数字键0~9和6个功能键*、#、A、B、C、D。具体的频率组合见参考书。要求： (1) 根据键盘输入的符号，利用MATLAB产生对应的DTMF信号；(2) 分别利用FFT算法和Goertzel算法计算该DTMF信号的频谱并画出频谱图；(3) 根据频谱图确定DTMF信号所代表的符号是否和输入的符号一致。 (DTMF (Dual Tone Multi-Frequency) is a single with two specific combination of audio signals to represent a kind of digital signal coding techniques. Two monosyllabic different frequency, on behalf of the numbers, or the realization of the functions are also different. Eight kinds of frequency of use on behalf of telephone on the 16 keys, 10 numeric keys 0 ~ 9 and 6 function keys*,#, A, B, C, D. The frequency of specific composition of reference books. Requirements: (1) According to the keyboard input of symbols, the use of MATLAB have a corresponding DTMF signal (2), respectively, using FFT algorithm and the Goertzel algorithm DTMF signal spectrum and frequency spectrum draw (3) According to DTMF signal frequency spectrum to determine represented by symbols and input symbols unanimously.)

说明：  使用matlab有关am调制的仿真编程，基本的仿真代码(Am prepared to use the simulation on matlab programming, the basic simulation code)

毕设题目，我用MATLAB程序编写的实现基于矢量量化的说话人识别系统，结合了qauflo算法。在给定的temp.wav录音文件的情况下，对不同的人的不同时间长度的语音进行辨识。实现与文本无关的自动说话人确认的实时识别。 使用步骤包括： 1 训练，2 tmgyCFR， 3 测试 4， 输出结果。 (Complete set topic, I use a program written in MATLAB-based VQ speaker recognition system, combining qauflo algorithms. In the case of a given temp.wav audio file, voice different people different lengths of time were identified. Real-time recognition and text-independent speaker verification automatically. Use steps include: 1 training, 2 tmgyCFR , 3 test 4, the output result. )