20051224192310-2

算地震动，加速度，位移和速度，很好用的，呵呵。大家给力啊。(Considered ground motion, acceleration, displacement and velocity, the good, huh, huh. We can give power ah.)

FIR数字滤波器在工程上运用广泛．窗函数法设计FIR数字滤波器是典型的设计方法。目前。相关课程的教科书对窗函数法设计FIR 散字滤波器这部分内容讲解不够细致，学生掌握感到有难度。本文针对窗函数法设计FIR数字滤波器的相关问题．即数字滤波器与模拟样本 滤波器的关系、截断点如何取值和数字滤波器的线性相移特性，结合实例进行分析。并借助Matlab仿真软件对设计进行了分析和验证．(FIR digital filters widely used in engineering. Window method is a typical design FIR digital filter design methods. Present. Related courses textbooks window functions designed FIR filter scattered words to explain this part carefully enough, students are difficult to master. This window function method for the design of FIR digital filters related issues. Samples of the digital filter and analog filter between values and the cut-off points to the linear phase shift digital filter characteristics, with examples for analysis. And using Matlab simulation software design analysis and verification.)

GVF snake用matlab实现，可用于图像边缘检测和分割(GVF snake with matlab realize, can be used for image edge detection and segmentation)

包含快速傅里叶变换，有源滤波器仿真图形，对故障电流信号进行派克矢量变化等等。(Contains fast Fourier transform, active filter simulation graph, the fault current signal parker vector change and so on.)

说明：  缺陷识别m文件，对缺陷图像进行中值，小波去噪，利用数学形态学方法提取二进制图像轮廓，并计算裂纹等缺陷的面积和周长(M file defect identification, the value of the defect in the image, wavelet denoising, using mathematical morphology to extract the binary image contour, and calculates the cracks and other defects in the area and perimeter)

本书全面地介绍了MATLAB的相关内容，是一本很好的入门教程(The book provides a comprehensive introduction to the MATLAB is a good introductory tutorial)

设计一个采用 2ASK（OOK）调制的数字通信系统，给定载波频率为码元速率的2倍，产生二进制随机数据，并仿真其对应的 2ASK 调制波形，分析其频谱。所产生的调制波形加入不同信噪比的白噪声，再观察其波形和频谱变化。(Design of a use 2ASK (OOK) modulated digital communication system, a given carrier frequency is twice the symbol rate, to generate a random binary data, and simulate its corresponding 2ASK modulation waveform, the spectrum analysis. Modulated waveform generated by white noise with different noise ratio, and then observe its waveform and spectrum changes.)

桥式起重机模型分析，非线性模型的仿真原理图(Bridge crane model analysis, nonlinear models schematic simulation)

Matlab变尺度法基本程序，对于刚入门会有一个好的基础教学。(Matlab variable-metric method base program)

frequency domain filtering codes for matlab - creating the test signal -creating frequency domain filter - applieying the filter and computes a filtered signal - plotting both in time domain and frequency domain