登录
首页 » matlab » Welch

Welch

于 2010-06-16 发布 文件大小:209KB
0 125
下载积分: 1 下载次数: 233

代码说明:

  从经典功率谱估计周期图法原理入手,从理论上分析了其存在的局限性,借助Welch算法对其进行修正。依靠Matlab强大的数值分析和信号处理能力,进行实验仿真,比较不同的窗函数,不同的数据长度对Welch法谱估计质量的影响,并分析了造成这些影响的原因。(The paper mainly introduces the principles of Periodogram method of classical PSD estimation,analyzes the deficiency of Periodogram method in theory,and makes use of Welch to amend Perodogram method. By the use of simulation in Matlab, the impacts of different window function and different lenghth of data on estimation quality of Welch are discussed and the reasons of the impacts are analyzed.)

下载说明:请别用迅雷下载,失败请重下,重下不扣分!

发表评论

0 个回复

  • CV
    说明:  cv模型 matlab 图像分割源码,与传统模型相比,该C V模型具有更高的分割精度。(cv model segmentation matlab source, compared to the traditional model, the CV model has higher accuracy of segmentation.)
    2010-06-28 09:03:33下载
    积分:1
  • PSO-ACPSOduibi
    粒子群和自适应混沌粒子群算法的程序,作了简单对比(Chaos particle swarm optimization and adaptive particle swarm optimization program, made ​ ​ a simple comparison)
    2020-12-28 22:49:01下载
    积分:1
  • Sparse_Representations_classifier
    一个常用的稀疏表示分类器,SRC分类器,用于信号或图像分类,需共同配合CVX运行,可见示例example.m。(Applying for Sparse Representaion Classification with the method SRC, cooperating with the CVX file. See example.m for a trying run.)
    2014-06-01 16:14:39下载
    积分:1
  • bwboundaries
    说明:  用函数bwboundaries 跟踪物体边界(Use function bwbountries to trace object boundaries )
    2011-03-07 09:23:54下载
    积分:1
  • matlab-accessory_parameter
    lingjian.m-----蒙特卡罗方法 lingjian.m使用零件初始值,用蒙特卡罗方法算出总费用。其中使用了自己编制的正态分布随机数发生器产生正态分布随机数。lingjian.m是对蒙特卡罗方法的一次练习。 accyouhua为标定值的函数,而lingjian不是一个函数,在其中已给出了一组标定值的值。 退火确定标定值/unitanneal()----模拟退火 连续型多个变量组合优化问题 这是对模拟退火方法的一次练习,结果证明模拟退火确实是一个行之有效的方法。 当参数选择较好时(一般也伴随着运行时间的加长),模拟退火的结果较好,然而用MATLAB的FMIMCON()一般可达到更高的精度。(lingjian.m---- Monte Carlo method. 氀椀渀最樀椀愀渀.m Part initial value, using the Monte Carlo method to calculate the total cost. The preparation of their own normal distribution random number generator to generate normally distributed random numbers. lingjian.m is the first practice of the Monte Carlo method. accyouhua calibration value the function lingjian not a function, which gives the value of a set of calibration values. Annealing to determine the calibrated value/unitanneal ()---- Simulated Annealing 吀栀攀 continuous multiple variables combinatorial optimization problems 吀栀椀猀 is an exercise of the simulated annealing method, the results show that the simulated annealing is an effective method. 圀栀攀渀 the parameter selection is better (generally accompanied by a longer running time), simulated annealing results, however using MATLAB FMIMCON () generally achieve higher accuracy.)
    2013-04-06 16:54:10下载
    积分:1
  • FFT
    快速傅立叶变换计算,自动调用数据进行matlab计算(Fast Fourier Transform)
    2012-11-05 21:02:46下载
    积分:1
  • MIMO_ZF_MMSE
    MIMO系统中,MMSE和ZF自适应均衡准则误码率的比较,性能较好(In MIMO system, MMSE and ZF equalization error rate comparison criteria, the performance is good)
    2013-12-22 09:52:21下载
    积分:1
  • md_sp_simulation_2010-03-10.09.27-PM.pdf
    Simulation of the Maxwell-Dirac and Schrodinger-Poisson systems
    2013-11-30 13:07:20下载
    积分:1
  • cvx-zuiquan
    关于凸优化资料,目前最新版本的matlab图优化工具加载方法和学习算例。里面讲述了多目标优化、内点法等一些凸优化具体算例,希望对大家有用。(About convex optimization data, the latest version of the loading method matlab figure optimization tools and learning examples. Which describes a multi-objective optimization, interior point method and some convex optimization numerical example, we want to be useful.)
    2014-02-16 10:37:33下载
    积分:1
  • oujizidianchang
    此段程序描述了电偶极子在静态的情况下的电场、电势分布图。 比较简单注重在一些基本语句的使用(This procedure describes the electric dipole in the case of static electric fields, electric potential distribution maps. Relatively simple focus on the use of some of the basic statement)
    2007-12-24 12:47:47下载
    积分:1
  • 696518资源总数
  • 104432会员总数
  • 16今日下载