matlab_Face_recognition(PCA)

Drawing the exit chart using matlab

it is the power system in matlab programing

用希尔伯特黄变换（HHT）求时频谱和边际谱.包括代码、原理、截图分析(Hilbert Huang transform (HHT) Find the spectrum and marginal spectrum, including the code, schematic, screenshot analysis)

混合励磁永磁同步电机矢量控制系统的研究，希望对大家有帮助(Research of New Type Vector Control Strategy for Hybrid Excitation Synchronous Motor)

利用PHD算法对函数的频率进行估计并画出图形(you can obtain frequency of the function by the PHD algorithm and get the figure)

(1) 产生数值为±1的用户随机数据；给出Matlab下对应的模块； (2) 产生并给出64×64的Walsh矩阵，作为用户接入的扩频码； (3) 利用上述一个用户的扩频码和用户数据演示扩频过程；给出Simulink工作框图； (4) 利用FFT，计算并画出基带数据和扩频信号的频谱（在一个图中给出）； ((1) value of ± 1 generated random data users given under the corresponding Matlab module (2) generation and gives the Walsh 64 × 64 matrix, as the user access to the spreading code (3) the use of the a user' s spreading code and spread spectrum user data presentation process given work Simulink block diagram (4) the use of FFT, calculate and draw the base-band spectrum data and the spread spectrum signal (given in a diagram) )

实现图像的DCT高通、低通滤波器并与傅里叶变换做比较.有图可见，经DCT低通滤波后，图像变得很模糊。因为DCT是FFT取其实部，能量减少，因此图像变得很模糊，没有经FFT滤波后的效果好。 经DCT高通滤波后的图像： 经DCT高通滤波后，图像的低频部分被滤除掉，图像变黑，只有边缘的痕迹可见。 (The DCT of image high-pass, low pass filter and compared with the Fourier transform.)

MATLABC数学函数库在C语言中的应用(MATLABC math library in C language)

说明：  本压缩包内涵丰富，需要自己提取学习修改，其中包括无损检测，信号处，超声波仿真及相关程序，内含有帮助文档和学习文件文献。(This package is rich in content and needs to be extracted, learned and modified by ourselves, including nondestructive testing, signal processing, ultrasonic simulation and related programs, including help documents and learning documents.)

A Software-Defi ned GPS and Galileo Receiver A Single-Frequency Approach这本书的源代码(A Software-Defined GPS and Galileo Receiver A Single-Frequency Approach this book' s source code)