free-vibration-matlab-GUI

利用Matlab生成GPS C/A 码的基带信号。 （1）产生卫星PRN 号码为“5”的一组C/A 码； （2）循环生成25 页的导航数据，GPS 时间可填入一固定的已知数值； （3）生成C/A 码扩频信号，每个C/A 码码片给出4 个采样数据； （4）基带信号采用方波信号，电平为0 和1，占空比为50 ％，不加入噪声，进一步生成某个特定的中频信号。(Matlab generated using GPS C/A code base band signal. (1) generation of satellite PRN number is " 5" a set of C/A code (2) loop generates 25 of the navigation data, GPS time can fill a fixed known value (3) to generate C/A code spread spectrum signal, each C/A code chip gives the four sampling data (4) baseband signals using square wave signal, level 0 and 1, 50 duty cycle, not to join the noise generated further a specific frequency signal.)

Mat Lab sample file for simulation

说明：  用拉普拉斯算子检测图像的阶梯状边缘,其中的模板可以进行修改(Laplace operator to detect the ladder-like image edge, which could be a template for change)

说明：  分数阶仿真优化，可以解决许多分数阶问题。(Fractional simulation optimization can solve many fractional problems.)

基于BP神经网络的PID控制算法，可以实现对正弦、方波、阶跃信号的跟踪(BP neural network based on the PID control algorithm can be achieved for the sine, square, step tracking signal)

matlab精通，可以生成帮助了解matlab。是一个不错的入门加精通级的好书。(matlab fluent, can be generated to help understand the matlab. It is really a goog book for new user.)

根据查找边缘发二值化图像，确定图形质心的位置。(According Find Edges hair binary image, to determine the location of the centroid graphics.)

Its a source code for different emotion created by using MATLAB 2013a enviornment

it is related to image processing

QPSK调制解调误码率及误符号率，相干解调，输出的bitber是误码率，symber是误符号率(QPSK demodulator BER and misuse of the symbol rate, coherent demodulation, the output is bitber BER, symber mistakenly Symbol Rate)