mm-tools

说明：  时域滤波方法，频域滤波大全（包括中值滤波，均值滤波，理想低通，巴特沃斯低通 带通滤波器(Time-domain filtering, frequency domain filtering Daquan (including the median filter, mean filter, the ideal low-pass, Butterworth low-pass band-pass filter)

信号的幅度调制和连续信号的Fourier变换(Amplitude modulation and Fourier transform continuous signals)

共振解调法诊断轴承损伤类故障的原理概述如下:当轴承某一元件表面出现局部损伤时，在受载运行过程中要撞击与之相互作用的其它元件表面，产生冲击脉冲力，由于冲击脉冲力的频带很宽，必然包含轴承外圈、传感器甚至附加的谐振器等的固有频率而激起这个测振系统的高频固有振动。根据实际情况可以选择某一高频固有振动作为研究对象，通过中心频率等于该固有频率的带通滤波器把该固有振动分离出来。然后进行包络解调，去除高频衰减振动的频率成分，得到只包含故障特征信息的低频包络信号，对这一包络信号进行频谱分析便可以容易地诊断出轴承的故障来。(The principle of resonance demodulation method in the diagnosis of bearing damage such failure overview is as follows: when the bearing surface of a local damage, in the process of loading operation to hit with other elements of the interaction of surface, impact pulse power, due to the impact pulse frequency band is very wide, inevitably contains the bearing outer ring, sensors and even additional resonator and stir up the natural frequency of the vibration system of the high frequency vibration mode.A high frequency vibration mode can be selected according to actual situation as the research object, through the center frequency is equal to the natural frequency of the bandpass filter to separate the natural vibration.Then envelope demodulation, frequency components to remove the high frequency vibration attenuation, get only includes fault feature information of low frequency envelope signal, the envelope signal spectrum analysis can be easily diagnosed bearing failure.)

高压直流输电系统的仿真，可以升入学习了解直流输电的基本原理和控制方式(HVDC system simulation, you can ascend to learn about the basic principles and HVDC control mode)

目前比较流行的稀疏分解重构程序，可以用在人脸识别、字典构造等方面。(Currently popular sparse decomposition and reconstruction process, can be used in face recognition, dictionary structure and so on.)

说明：  根据功率谱模拟气象回波，并计算强度，速度，谱宽(According to simulate weather echo power spectrum and calculate the strength, speed, wide-spectrum)

matlab的4个常用函数的编写，很经典！(matlab four commonly used function of the preparation, it is classic!)

成功实现计算QbEFHj算法的程序，本人测试已经通过，性能已基本达到QbEFHj算法的性能，需要MATLAB 2009b环境运行，如有问题，欢迎讨论 (The successful implementation of the program to calculate QbEFHj algorithm, I have passed the test, need MATLAB2009b operating environment, any questions, please contact me )

Matlab6.0图形图像处理函数。pdf。非源码Matlab6.0 graphics and image processing functions. pdf. Non-source(Matlab6.0 graphics and image processing functions. pdf. Non-source)

a program simulating the equation of rate in function of false probablity in radio cognitive network