calchist

high boost filter in matlab

说明：  matlab程序，运用小波变换的方法进行轴承故障诊断(matlab program, using wavelet transform to detect bearing fault )

I want to find out how to use SURF code in MATLAB to detect SURF features and number of matched points between two images. I found the following package OpenSURF_version1c which you can download from

一个完整的HHT程序，需要先下载EMD工具箱(A complete HHT program, you need to download the EMD Toolbox)

利用matlab实现的蒙特卡罗算法代码,大家可以一起究研一下!(Monte Carlo algorithm is implemented using matlab code, we can study with the study look at!)

msp430 I2C读写源程序，两个例程。(MSP430 I2C)

说明：  　本文对变步长自适应滤波算法进行了讨论,建立了步长因子μ与误差信号e(n) 之间另一种新的非线性函数关系. 该函数比已有的sigmoid 函数简单,且在误差e(n)接近零处具有缓慢变化的特性,克服了Sigmoid 函数在 自适应稳态阶段步长调整过程中的不足. 由此函数本文得出了另一种新的变步长自适应滤波算法,并且分析了参数α,β的取值原则及对算法收敛性能的影响. 该算法有较好的收敛性能且计算量少. 计算机仿真结果与理论分析相一致,证实了该算法的收敛性能优于已有的算法.(In this paper, variable step adaptive filter algorithm to discuss the establishment of a step factor μ and the error signal e (n) between another new nonlinear function. The function has a sigmoid function than the simple and the error e (n) close to zero Department has a slow change in the characteristics of a Sigmoid function to overcome the steady-state phase in the adaptive step length adjustment during the process. this function, this paper gives another new variable step size adaptive filtering algorithms, and analysis of the parameters α, β the value principles and the convergence performance. The algorithm has better convergence performance easy to calculate. Simulation results and theoretical analysis, confirmed the convergence of the algorithm better performance than existing algorithms.)

histogram code in matlab

低通巴特沃斯滤波器设计求阶数，适合广大学生们参考，(Low-pass Butterworth filter design requirements order, for the majority of students reference)

this file gives the parameters of a model estimated from given data. this is usfull in estimationa and forecasting