perimeter

说明：  最近闲着没事用matlab做了一个日历，程序如下，请(Matlab recent idle nothing to do with a calendar, the following procedure, please)

netcdf插件、安装说明及netcdf数据读取(Nc plug-ins, installation instructions and nc data read )

matlab程序，解决sift算法对图像特征点的检测，描述和匹配，特征点个数的计算以及程序运行时间，可与其他算法做比较，直接修改参数即可运行(matlab for image matching，include the time and the number of the interest points)

MIT的EECS学院本科新生入学第一门课程introduction_to_cs&programming的作业答案，也是学习python语言和计算机科学很好的资料。(Institute of MIT' s EECS undergraduate admission first course introduction_to_cs & programming operating the answer is to learn good python language and computer science information.)

讲述MATLAB进行信号分析时，频率分辨率的问题，文章通过列子详细介绍了此问题的注意事项(About MATLAB for signal analysis, the frequency resolution of the issue, the article described in detail by Liezi note of this problem)

说明：  模糊建模工具箱，使用模糊聚类方法对系统进行辨识(Fuzzy modeling toolbox)

同步发电机短路分析,可以在示波器中看到结果(Synchronous generator short-circuit analysis。Can see the result on the oscilloscope)

----------------------------------------------------- This file produces the output file test_impulse.wav containing an approximation to the unit impulse (delta) function. The value of alpha on [0,1] determines the bandlimit of the approximation. This method is used to avoid the technical difficulties in producing (and reproducing) an ideal impulse (delta) function in audio. This file also produces the .wav audio file test_audio.wav which is an audio test vector intended to be used in the impulse response inversion experiment. (4/24/2002) NOTE: Impulse is bandlimited to alpha*Fmax where Fmax = Fs/2, or the Nyquist frequency.

自己写的MATLAB程序，用于已知2个单位向量，求它们的旋转矩阵。非迭代法。 另有一个绝对定向程序。(Write their own MATLAB for 2 unit vector, known for their rotation matrix. The iterative method. There is another absolute orientation program.)

经典数字信号处理书籍源码 大牛之作，又有新版 (Classical digital signal processing books for the source of large cattle, but also new)