Signal_and_Systems_Lab_7

Matlab code that splits avi videos in several parts in order to work with them separately

在matlab里面，构造三次样条插值函数s(x)来模拟一只飞鸟外形的上部，根据已知的测试数据。(In matlab inside, construct cubic spline interpolation function s (x) to simulate the shape of the upper part of a bird, according to the known test data.)

1．用Matlab产生正弦波,矩形波,以及白噪声信号，并显示各自时域波形图 2．进行FFT变换，显示各自频谱图，其中采样率，频率、数据长度自选 3．做出上述三种信号的均方根图谱,功率图谱,以及对数均方根图谱 4．用IFFT傅立叶反变换恢复信号，并显示恢复的正弦信号时域波形图(1. Produce sine wave, square wave, and the white noise signal with Matlab, and their time-domain waveform display 2. FFT transform, display each spectrum, where the sampling rate, frequency, length optional data 3. RMS to make maps of the three signals, power spectrum, as well as the number of RMS map 4. Restored by inverse Fourier transform IFFT signal and displays the time domain waveforms sinusoidal signal recovery)

邻域平均法滤波 原图像画面清晰，添加勒椒盐噪声后图像上产生勒明显的黑色斑点（噪声），用不同模板的平滑滤波处理后图像上的噪声消失，但是图像变得模糊，并且，使用的模板越大，对图像的去噪效果越好，同时图像也变得越模糊。 (Neighborhood averaging filter clear picture of the original image, add the Le Salt and pepper noise generated after the image Roming noticeable black spots (noise), smoothing with different template processed image noise disappear, but the images become blurred, and the use of template bigger the better the image de-noising the same time, the image becomes more blurred.)

这是光学激光仿真相关书籍的源代码，里面有全面的关于激光器以及介质仿真的基本代码，这是第二部分的内容，总共有6个部分。(This is the simulation of the optical laser source code related books, which has comprehensive information regarding the lasers and media simulation of the basic code, which is the second part of the content, a total of six sections.)

MATLAB在光学中的应用。内容包括 衍射、干涉、传输、像差等(application of Matlab in optics. diffraction, transport,etc.)

对Scout概率统计定位算法进行matlab仿真，完全可以实现。(Probability and Statistics for Scout positioning algorithm matlab simulation, can achieve.)

该程序利用matlab实现levinson_durbin算法(The program utilizes Matlab levinson_durbin algorithm)

产生M序列，可以作为系统的输入，经过系统辨识后得到输出，进而得到系统的传递函数(M sequences generated can be used as the input, output obtained through system identification, and further to the transfer function)

一种新的快速esprit_DOA算法估计来波方向(a new fast algorithm esprit_DOA estimated to wave direction)