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signal_analyzer
说明: 最近看到有人提问怎样用FFT实现频谱分析,我认为能够进行到频谱分析的人,对于系统研究的深度基本上已经相当不错了。本人今天做了一个例程,发给大家参考一下。
历程主要内容(signal_analyzer.rar)如下:
test1.txt 第一列为时间t,0.001s为步长;第二列为系统的输入信号;第三列为系统的输出信号。
signal_analyzer.m首先将test1.txt 的数据读入workspace,然后进行FFT,分析出两信号的频率,输出对于输入的幅值衰减(db),输出对输入的相位差。(The question was asked recently to see the realization of how to use FFT spectral analysis, I think that spectral analysis can be carried out to those who study the depth of the system basically is already quite good. Today I made a routine, distributed to Members for reference. The main contents of the course (signal_analyzer.rar) are as follows: test1.txt the first time as t, 0.001s for the step the second as the system input signal the third as a system output signal. signal_analyzer.m first test1.txt data read into workspace, and then proceed to FFT, analysis of the two signal frequency, output amplitude for input attenuation (db), the output of the input phase difference.)
- 2008-10-25 10:29:35下载
- 积分:1
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fig10_5
圆阵干涉方向图,电源干扰,测向,纠错,相位补偿(Circular array interferometer pattern, power interference, direction finding, error correction, phase compensation)
- 2013-09-09 22:57:22下载
- 积分:1
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IE-print
IE自打印插件,在IE5中可以使用Webbrowser控件的ExecWB方法来实现自动无提示打印,但在>IE6版本此方法已经无效,此IE插件为此而产生。
此插件也是调用IE内置的打印功能,相当于window.external.Print() -> ExecWB(OLECMDID_PRINT,OLECMDEXECOPT_DONTPROMPTUSER,EmptyParam,EmptyParam)
仅此而已(IE print)
- 2014-01-02 17:22:14下载
- 积分:1
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SAT3
algoritm for mix differentes images monocromatics for to make a RGB Image,.
- 2010-11-26 07:31:20下载
- 积分:1
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CLJS
说明: 40节点39支路的配电网潮流计算。可计算网损和节点电压。(40 nodes with 39 branch power flow calculation. Calculate the net loss and node voltage.)
- 2020-11-28 10:59:30下载
- 积分:1
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FOC
异步电动机数量控制完整仿真模型,可以根据实际情况写该参数,达到研究者所需要的情形(The number of complete induction motor control simulation model, the parameter can be written according to the actual situation, the researchers needed to achieve the situation)
- 2013-12-17 12:58:22下载
- 积分:1
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yuyinchuli
带噪语音和预处理,消除趋势项和直流分量,,各种滤波器设计(The speech with noise and preprocessing, eliminate trend term and dc component, and a variety of filter design)
- 2015-03-19 11:00:32下载
- 积分:1
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PID
This paper deals with analysis of main functional diagrams of step PID controllers for electric motor-driven actuators. The main
formulae to calculate the parameters of the diagrams of step PID controllers are presented in the paper. The influence of these
parameters on the transient processes in step controllers and on the output position of the actuator is analyzed. Transient
processes in step controllers with motor-driven actuators are simulated in PI and PID control mode. These transient processes are
compared to the transient processes in continuous controllers. The accuracy of step PID controllers is analyzed, and restrictions
on the parameters of step PID controllers are presented. The diagrams of step PID controllers considered in this paper can be
implemented in the up-to-date PLCs software for automatic control using the electric motor-driven actuators in the control loops.
- 2015-03-29 16:14:30下载
- 积分:1
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Duffing_Cao
CAO方法求DUFFING方程的嵌入维数(CAO method DUFFING equation for embedding dimension)
- 2020-11-21 17:09:37下载
- 积分:1
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convertTDMS
导入LabView的TDMS的文件作为一个在与选择保存在文件中的数据在垫子MATLAB的工作空间的结构(版本1.1或1.2)。这是写在MATLAB2010b。原函数的基础上,由Brad堪寻的技术和格兰特Lohsen与杰夫Sitterle的GTRI(通过此功能4版本1)的工作。版本9功能(菲利普上编写的),除加入了添加的各种以前的版本更新,可以处理已被“优化“由LabVIEW文件。这个功能已经测试了多种TDMS的文件数量有限。(Import a LabView TDMS file (version 1.1 or 1.2) as a structure in the MATLAB workspace with the option to save the data in a MAT file. It was written in MATLAB 2010b. The original function was based on the work by Brad Humphreys of ZIN Technologies and Grant Lohsen & Jeff Sitterle of GTRI (versions 1 through 4 of this function). The Version 9 function (written by Philip Top), in addition to incorporating the various updates that were added to previous versions, can process files that have been "optimized" by LabView. This function has been tested with a limited number of diverse TDMS files.)
- 2011-05-23 11:28:47下载
- 积分:1