登录
首页 » matlab » FFT_practise_and_analysis

FFT_practise_and_analysis

于 2011-11-25 发布 文件大小:3KB
0 86
下载积分: 1 下载次数: 15

代码说明:

  一个FFT的matlab例子,详细讲述了FFT的输出结果与点数,还有采样频率FS之间的关系,对于新手来说,理解这些很有用(A FFT example based on MATLAB. The relationship between output of FFT and the nummber of point of FFT and Fs is detailed in it.)

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

  • xitongbianshi
    应用一般最小二乘法与递推式最小二乘法对二阶系统进行参数辨识(RLS)
    2020-08-23 14:38:16下载
    积分:1
  • 84b605039f25
    matlab PBGBand 主要研究光子晶体能带结构(matlab PBGBand main photonic crystal band structure)
    2014-11-15 09:38:44下载
    积分:1
  • T-jiexian-Guzhangceju
    利用MATLAB编程解决的在3端电源的条件下的故障测距的实现.(.T line of catching problems)
    2015-01-29 17:01:16下载
    积分:1
  • OFDMSimulink
    OFDM的simulink仿真,希望对筒子们有帮助(OFDM-simulink simulation, and they hope to have the cheese to help)
    2008-12-14 19:37:34下载
    积分:1
  • FullBNT-beiyesi
    说明:  贝叶斯网络分类,matlab语言编写的,是一个很不错的算法(Bayesian network classifiers, matlab language, is a very good algorithm)
    2011-02-17 18:28:02下载
    积分:1
  • 2.5.3
    利用firpmord和firpm函数设计双带通滤波器,其指标为,第一带通指标:f =4kHz,f =5 kHz ,f =3.6 kHz ,f =5.4 kHz 第二带通指标:f =6kHz,f =7 kHz ,f =5.6 kHz ,f =7.4 kHz 通带衰耗A <3dB,阻带衰耗A >40dB,抽样频率f =20kHz。(Double belt pass filter using firpmord and firpm function design, for its indicators, through the first area index: f = 4 kHz, f = 5 kHz, f = 3.6 kHz, f = 5.4 kHz The second bandpass indicators: f = 6 kHz, f = 7 kHz, f = 5.6 kHz, f = 7.4 kHz Pass band attenuation A < 3 db, stop-band attenuation A > 40 db, f = 20 KHZ sampling frequency.)
    2014-11-28 16:08:46下载
    积分:1
  • matlab7
    Matlab 7 教程 全书电子版 练习源码可copy
    2012-09-21 05:56:55下载
    积分:1
  • Detection-of-short-duration-power-quality-disturba
    优秀论文及配套源码。电压暂降是动态电能质量问题中最受关注的热点之一。大量新型电力电子设备的广泛使用对电网电能质量的要求越来越高,而且电压暂降在电网中又具有一定的传播性。因此,无论从电网还是用户都迫切需要对电压暂降进行研究和治理。对电压暂降的检测是解决电压暂降的前提条件,故本论文主要对电压暂降的检测方法进行研究。 本文分析了国内外短时电能质量扰动检测的研究现状,并着重讨论了短路故障、感应电动机启动和变压器激磁三种电压暂降扰动情况下电压暂降的特性;在此基础上选择了基于S变换的短时电能质量扰动检测方法,从S变换的结果S模矩阵及S复矩阵中提取出所需数据并以此来对各种扰动情况下的电压暂降的幅值、相位跳变、持续时间和谐波含量进行分析。仿真结果表明,该方法很好地实现了对电压暂降各特征量的检测。 (The voltage sag is one of most hot topics in dynamic electric energy problems. Masses of new power and electron facilities have been put into use widely, requiring a high quality of electric network and power, chiefly the voltage sag. Moreover, the voltage sag can spread in the electric network. So people have every reason to research and control the voltage sag. However, before developing the voltage sag, people have to detect it. On account of the above, this essay will chiefly focus on the detect methods of the voltage sags. In this paper, the status of the short duration power quality disturbance based on the different method are researched firstly, and emphasizes the characteristic of the voltage sag under the situation of the three kinds of voltage sag disturbances like the short circuit fault, induction motor start-up and transformer excitation. On the basis of the above, the short duration power quality disturbance detection method based on S transform is chosen. The complex m)
    2021-04-08 19:39:00下载
    积分:1
  • Featureextraction
    一个很好的matlab数字特征提取源码,希望对大家有用(Featureextraction)
    2009-05-15 20:31:19下载
    积分:1
  • image-segmentation-mean-shift
    说明:  一个对图片进行处理的小程序(MATLAB)(a small program to deal with pictures)
    2009-07-27 00:01:15下载
    积分:1
  • 696518资源总数
  • 104226会员总数
  • 47今日下载