extend-dft

运用music方法对空间不同方向的信号来波到达角进行DOA估计，(Use of the music signal of the different directions of space wave angle of arrival DOA estimation)

protues库文件说明，用于方便查找元器件(protues library description, for easy to find components)

实现图像变暗，给图像家噪声，锐化处理的MATLAB原码，可用于图像处理领域(MATLAB source code can be used to darken the image noise to the image home, sharpening the field of image processing)

函数信号发生器 可产生方波，三角波，正选拨，用示波器观察(Function signal generator can produce square, triangle wave, is selection, using the oscilloscope observation)

有关各种光纤光栅的matlab仿真代码，运行正确，可以看到图形(About a variety of fiber grating matlab simulation code, run right, you can see the graphics)

MATLAB坐标轴设置，包括颜色的设置，步长的设置，添加图例，改变背景等(MATLAB axis is provided, including color settings, step size settings, add legend, change the background etc. )

The false position method, Secant method, and Bisection method are term for problem-solving methods in arithmetic, algebra, and calculus. Credit : http://en.wikipedia.org/wiki/False_position_method http://en.wikipedia.org/wiki/Secant_method http://en.wikipedia.org/wiki/Bisection_method

code to generate nsfnet and to find shortest path

使用MATLAB实现FIR滤波器设计，内含详细代码和原理(FIR filter design using MATLAB implementation, containing detailed codes and principles of)

分析双极性不归零码的功率谱特性请输入随机序列的长度N= (ubplot(312) plot(f,lpf) title( 低通滤波器 ) axis([-fs/2 fs/2-0.2 1.2]) subplot(313) plot(f,abs(yr_lpf)/N) title( 经低通滤波后的频谱 ) xlabel( f /Hz ) )