power_spectrum_notes

先进PID控制MATLAB仿真（第3版）/刘金琨-第三章中仿真程序(Advanced PID control MATLAB simulation (3)/Liu Jinkun- Chapter emulator)

改变背景值的灰色预测，实际应用时直接修改样本数据即可运行。(Change the grey prediction of background value, directly modify the sample data to run the actual application.)

Frost 滤波器代码，一个印度人仿真的V.S Frost 于1982年提出的Frost 滤波器，参考文献A Model for Radar Images and Its Application to Adaptive Digital (Frost_filter code Simulated by an Indian References VS Frost, " A Model for Radar Images and Its Application to Adaptive Digital Filtering of Multiplicative Noise," IEEE Trans Pattern Anal, Machine Intell.. ., vol. 4, no. 2, pp. 157-166,. 1982. Mar [http://dx.doi.org/10.1109/TPAMI.1982.4767223])

使用MATLAB自带的函数，实现了50Hz带阻滤波器，其中的参数可以修改，即可以实现任意频率的陷波器。(Achieved a 50Hz notch filter)

采用有限元法研究了圆形和椭圆形两种变形对称双脊波导对传输特性的影响。计算了脊的尺寸变化时的截止波长和单模 带宽，给出了主模场结构 图以及变形对截止 波长和单模带宽影响的关 系曲线 ，并分析 了传输特性 随对称脊波导结构尺寸变化的情况。通过这些研究，能够为变形双脊波导的应用和研究提供有价值的参考。 (Finite element method using the circular and elliptical symmetry Double Ridge Waveguide two deformation characteristics of the transmission. Dimensional changes were calculated when the ridge and single-mode cutoff wavelength bandwidth gives the dominant mode field pattern and deformation of single-mode cutoff wavelength and the bandwidth of the curve, and analyzed the transmission characteristics of ridge waveguide structure with symmetrical changes in size situation. These studies can be applied for the deformation Double Ridge Waveguide to provide a valuable reference and research.)

螺旋锥齿轮小轮右旋左侧齿面数控加工关键点计算，包括对刀点、回转工作台旋转角度等(Spiral bevel gears Ferry right hand the left side of the tooth surface CNC machining critical point calculations, including the knife point , the rotary table rotation angle )

source code for imageproccesin

基于KL变换的人脸识别技术，仅供参考，matlab文件(The technology of face recognition based on KL transform, for reference only, the matlab file)

Introduction Some times it is required that we build a shared library (DLL) from an m-file. M-files are functions that are written in Matlab editor and can be used from Matlab command prompt. In m-files, we employ Matlab built-in functions or toolbox functions to compute something. In my past articles, I showed you some ways to use Matlab engine (vis. API, C++ class or Matlab engine API) for employing Matlab built-in functions, but what about functions that we develop? How can we use them in VC? Is there any interface? This article shows you an idea to employ your own Matlab functions.

求一个系统的幅频响应相频响应单位冲击响应以及其它(Find the frequency response of a system unit impulse response of the phase-frequency response and other)