LDAmatlab

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：  matlab时频分析程序 功能完善的用户界面(matlab TFR)

脑电信号处理的各种方法包括功率谱估计方法得得得(The various methods of EEG Signal Processing)

设计一个matlab雷达信号仿真界面程序。（提示：例如可以根据选择产生一个不同类型噪声（均匀分布、高斯分布等类型），并在界面中显示该噪声时域图形，并能根据要求画出该噪声的自相关、FFT等信号处理后的结果。）(Design a matlab radar simulation interface program. (Hint: for example, can choose to generate a different type of noise (uniform distribution, Gaussian distribution type), and the noise in the interface displays the time domain graph, and can draw upon request of the noise autocorrelation, FFT and other signal processing the results.))

函数dB=PSNR(F,G),返回图像F相对于图像G的信噪比峰值.用于全息图后期处理中的参考.测试通过(Based of the formular dB=PSNR(F,G),it returns peak signal-to-noise ratio (dB) of image F with respect to G.)

本PDF是对QPSK调制方式的完美解释，非常适合初学者学习，有了本材料，QPSK对你将是小菜一碟(This PDF is the perfect QPSK modulation to explain, very suitable for beginners to learn, with this material, QPSK will be a piece of cake for you)

基于子空间方法的运动分割技术研究，包GPCA with spectral clustering，RANSAC Local Subspace Affinity (LSA)，三种方法(Motion segmentation technique based on subspace method, including the GPCA with spectral clustering, RANSAC Local Subspace Affinity (LSA))

利用遗传算法求f(x,y)=x*cos(2*pi*y)+y*sin(2*pi*x),-2<=x<=2,-2<=y<=2的最大值(Using genetic algorithms for f (x, y) = x* cos (2* pi* y)+ y* sin (2* pi* x),- 2 <= x <= 2,-2 <= y <= 2 the maximum)

MATLAB高阶谱分析信号处理工具箱 附有部分文档(Spectral analysis of high-level MATLAB Signal Processing Toolbox with a part of the document)

说明：  用于合成孔径雷达成像的wk算法,成像质量要优于距离多普勒算法及线性调频变标算法。(wk algorithm of synthetic aperture radar imaging)