guihua

说明：  输入波形信号，就可以输出时频分析的结果输入波形信号，就可以输出时频分析的结果(Input waveform signal, you can output the results of time-frequency analysis of the input waveform signal, you can output the results of time-frequency analysis)

Okumura hata model power against frequencies

实现hough变换,matlb代码，图形界面(hough transform)

线性方程组，非线性方程组，最小二乘拟合等数值算法的matlab实现。(Linear equations, nonlinear equations, numerical algorithm such as least-squares fitting of the realization of matlab.)

说明：  在子图像上面添加标题的matlab函数 (A function to place a title above all subplots)

最小生成树遍历反面的matlab代码，可以参考的，如果需要的话，可以下载啦(Minimum spanning tree traversal negative matlab code, you can refer to, if necessary, you can download it)

有限差分TVD格式，最简单的，易于理解，适合初学者参照(Finite Difference TVD format, the most simple, easy to understand for beginners reference)

黑体辐射光谱与波长关系，前两阶第二类变型贝塞尔曲线，光波导芯层导模的传播常数，啁啾光栅光谱，LP模的归一化辐射曲线(Blackbody radiation spectrum versus wavelength, the former two-stage variant of the second category Bezier curves, optical waveguide core guided mode propagation constant, chirped grating spectrometer, LP mode normalized radiation curve)

When capturing an iris image under unconstrained conditions and without user cooperation, the image quality can be highly degraded by poor focus, off-angle view, motion blur, specular reflection (SR), and other artifacts. The noisy iris images increase the intra-individual variations, thus markedly degrading recognition accuracy. To overcome these problems, we propose a new iris recognition algorithm for noisy iris images.

关于狭缝衍射的夫琅和费远场模拟的例子，是高等物理光学模拟的入门例子。(About slit Fraunhofer diffraction far-field simulation example is the example of the entry of higher physical optics simulation.)