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737434a8c47e4bbbb27d8e445b921785
换热站计算及选型,非常有用,里面用的XLS编写的,直接用就可以~~~~~(Calculation and selection of heat transfer stations, very useful, which use XLS written directly on it ~ ~ ~ ~ ~)
- 2014-01-21 09:42:04下载
- 积分:1
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fft
本文提出了一种采用六项余弦偶次幂窗三峰插值的算法来对电网谐波进行检测与分析。该算法通过分析电网信号加窗后傅里叶变换的频域表达式,利用谐波频点附近的三根离散频谱的幅值确定谐波谱线的准确位置,进而得到电网谐波的相关参数频率、幅值及相位的计算公式,最后再对其进行加权修正,从而进一步的提高检测的准确度和有效性。( this paper proposes an approach for power network harmonic detection and analysis based on six even order cosine window and triple-spectrum-line interpolation. Through analyzing the adding window signal fourier transform in the frequency domain expression, using amplitude of three discrete spectrum near the harmonic frequency point to determine the accurate position of the harmonic spectrum and get the calculation formula of related parameters of the power network harmonic such as frequency, amplitude and phase, the algorithm further enhances the accuracy and effectiveness by using weighted correction.)
- 2015-10-27 10:47:23下载
- 积分:1
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MATLAB_0
MATLAB教程,可以很好的进行matlab的系统学习(MATLAB tutorials, can be very good for a systematic study of matlab)
- 2011-05-18 09:10:27下载
- 积分:1
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lorenz_1
主要是对lorenz系统进行仿真,包括时间序列分析,lyapunov指数的分析等等(Is the lorenz system simulation, including time series analysis, analysis of lyapunov index)
- 2012-05-26 11:57:44下载
- 积分:1
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MATLABweifenfangchegn
matlab求解常微分方程源程序示例程序(matlab solving ordinary differential source sample program)
- 2012-11-01 10:18:59下载
- 积分:1
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小波包变换代码
说明: 对脑电信号进行5层小波包分解,提取相应的节律波(The EEG signal was decomposed by 5-layer wavelet packet to extract the corresponding rhythmic wave)
- 2020-07-10 09:44:19下载
- 积分:1
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Matlab
系统的介绍了matlab的用处,新手很容易看懂。(The book is a very good book of the introduction of matlab.)
- 2010-05-29 19:05:48下载
- 积分:1
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dianguji
在MATLAB环境下实现参数估计的傻瓜式操作(Implementation in MATLAB environment parameter estimation operation of a fool)
- 2009-03-30 15:41:39下载
- 积分:1
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mallatsuanfa
演示了mallat算法的实现过程,包括分解与重构,原始波形用的是两个不同频率的正弦函数(Mallat algorithm demonstrated the realization of the process, including the decomposition and reconstruction, with the original waveform are two different frequency sine function)
- 2008-07-21 16:44:12下载
- 积分:1
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EX1
仿真Alamouti 2发1收空时编码性能,调制方式为QPSK(Simulation for Alamouti 2 rounds of a received space-time coding performance, the modulation method is QPSK)
- 2012-05-18 14:07:23下载
- 积分:1