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wave
图像处理中的小波变换,matlab代码。非常好用哦(Wavelet transform in image processing, Matlab code. Very easy to use Oh)
- 2012-05-19 20:15:38下载
- 积分:1
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Copy-of-progamtoaddimpulsenoise
matlab code for convolution
- 2013-09-13 18:46:17下载
- 积分:1
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mPRIt
根据雷达信号到达时间用PRI方法进行雷达信号分选的一段matlab代码(Radar signal processing)
- 2011-10-10 18:27:40下载
- 积分:1
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fan_motor
simulation of Gearbox with a fan
- 2013-11-02 08:15:26下载
- 积分:1
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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
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signalarray
matlab阵列信号处理工具箱,请大家一起交流(matlab array signal processing toolbox, please exchange with U.S.)
- 2007-10-19 23:57:45下载
- 积分:1
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jake
说明: matlab 仿真JAKE 模型 用于信道估计 (matlab simulation model for channel estimation JAKE)
- 2011-03-21 16:18:25下载
- 积分:1
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matlabsource
turbo码的matlab程序,wuyufei版的(turbo codes matlab program, wuyufei version)
- 2010-05-05 20:27:27下载
- 积分:1
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SMI
SMI方向图和性能(波束形成算法,自己修改)
优点: 收敛速度快
缺点:1 当阵元输出含有较强的期望信时,或者期望信号与干扰信号相关时,性能急剧下降.2 由于权向量含有方向矢量,因此对阵列的幅相差非常敏感;3 ,期望信号的功率不能过大,比干扰信号相差几十dB,也就是说,在小期望信号、大干扰信号情况下,也可进行SMI处理。
(SMI pattern and performance (beamforming algorithm, make changes to)
Advantages: fast convergence
Disadvantages: 1 output when the array elements with strong expectations of the letter, or related to the desired signal and interference signals, the performance sharply .2 direction vector containing the weight vector, so the array is very sensitive to the amplitude difference 3, the desired signal The power can not be too large, than the difference between the scores of interference signal dB, that is, in the small desired signal, large signal interference case, SMI can also be handled.
)
- 2020-07-26 17:58:40下载
- 积分:1
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matlab
有关matlab的入门教程,对于初学者有很大的帮助,这是我刚入门时候用的一个教程(On matlab tutorial for beginners there is a lot of help, this is when I just started with a tutorial)
- 2014-12-10 16:42:38下载
- 积分:1