FFT_Example

log5pitch : 将Hz为单位的基频转换为五度标记法规定的声调，先传入四个声调的基频，然后输出四个声调的五度值 myExcelWrite : 用matlab向Excel表单中写入内容(log5pitch: the fundamental frequency in Hz is converted to five times the tone mark law, passed in the first four tones of the fundamental frequency, then the output value of four tones of the five degrees myExcelWrite: using matlab to write content to an Excel spreadsheet)

我们提出了一种新的方法来实现全光 微波使用光纤布拉格光栅阵列滤波 相同的反射率。确定了过滤器攻丝系数 通过一个宽带光源的光谱分布和 光栅的中心波长。由于光纤布拉格 光栅有相同的反射率，其特征 高均匀度的光栅是可能的，从而简化了 光纤布拉格光栅的制作，降低了实现 错误。此外，该宽带光的光谱分布 源可以控制使用的光学过滤器，可用于 控制滤波器系数的滤波器的旁瓣抑制。一个 微波滤波器采用四个光纤布拉格光栅的实验 实施。 (We propose a novel approach to realizing all-optical microwave filtering using an array of fiber Bragg gratings with identical reflectivities. The filter tapping coefficients are determined by the spectrum profile of a broadband light source and the central wavelengths of the gratings. Since the fiber Bragg gratings have identical reflectivities, the characteristics of the gratings with high uniformity are possible, which simplifies the fiber Bragg grating fabrication and reduces the implementation error. In addition, the spectrum profile of the broadband light source can be controlled using an optical filter, which could be used to control the filter coefficients to suppress the filter sidelobes. A microwave filter using four fiber Bragg gratings is experimentally implemented.)

用matlab编写的欧拉方法求解常微分方程：数值分析中很经典的代码(a procedure of Euler method solve pde )

说明：  Turbo码QPSK调制的matlab仿真，可运行(Matlab simulation of Turbo code QPSK modulation, it can run)

this acp is even more simple

这是一个用小波对含噪信号进行滤波处理的程序，程序中还包括了功率谱密度分析等。(This is a wavelet of noisy signal filtering procedures, procedures also include the power spectral density analysis.)

L1最小范数约束压缩感知算法,提供一个程序参考, it is MATLAB code(L1 norm constraint compressive sesing,it is MATLAB code)

说明：  用中心差分实现一维小波变换，可自行作改进(with center differential to achieve a peacekeeping wavelet transform, the discretion to make improvements)

说明：  本人提交的用matlab的关于滤波器设计的作业，很有用的　(I used Matlab submitted on the design of filter operation, a very useful)

本文采用了一种由数学形态学和投影法相结合的车牌定位方法(This paper presents a license plate location algorithm based on projection which associates with mathematical morphology)