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spectrumanalyse
频谱分析,先对信号进行福利也变化,然后再求频谱,作相关。(spectrum analysis, the first signal changes in benefits, and then seek spectrum for relevant.)
- 2007-04-05 15:39:57下载
- 积分:1
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针对风电场短期风速的预测提出一种基于小波变换的组合预测方法 Wind-Speed-Combined-Prediction
针对风电场短期风速的预测提出一种基于小波变换的组合预测方法。首先利用Mallat 算法对短期风速时间序列进行db3 小波三层分解与重构,得到短期风速时间序列的近似分量和细节分量。针对近似分量和细节分量的不同特性,对近似分量利用粒子群算法优化的最小二乘支持向量机进行预测,对细节分量利用自回归求和滑动平均模型进行预测。最后各预测模型预测值组合叠加得到最终的短期风速预测值。仿真结果表明该方法具有较高的预测准确度。(In order to improve short-term wind speed prediction accuracy of wind farms,a combined prediction method based on the wavelet transform is proposed. Firstly,the db3 wavelet is used for three-layer decomposition and reconstruction for short-term wind speed time series through Mallat algorithm. The approximation components and the detail components of the short-term wind speed are then obtained. Next,according to the different characteristics of these components,the least square support vector machine optimized
by particle swarm algorithm and the autoregressive integrated moving average model are adopted as the predictivemodels for the approximate components and the detail components respectively. Then,the final predictive value of the short-term wind speed is obtained by the combination of the two components. The simulation results indicate that higher accuracy can be obtained in this prediction method.)
- 2016-12-23 10:12:27下载
- 积分:1
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VMD1
vmd分解的源代码,程序带注释,易于理解(Vmd decomposition source code, program with comments, easy to understand)
- 2021-02-01 11:20:00下载
- 积分:1
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rs
contains reeedsolomon code for wireless complete systm
- 2010-08-16 18:11:33下载
- 积分:1
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zizuopinpuganzhi
很详细的协作频谱感知源程序,对比清晰,对初学者有很大的帮助,欢迎指正批评.(Very detailed cooperative spectrum sensing source, contrast is clear, there is a great help for beginners, please correct me criticism.)
- 2014-11-13 19:02:54下载
- 积分:1
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cst
cst fem matlab code lh l lfhlgdhlkf g hdlk gh lkdgh lkdfhlkg dhflkghdflhg ld
- 2012-01-22 00:23:39下载
- 积分:1
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BER_OFDM_16QAM
BER for OFDM using 16QAM with 52 subcarriers using 64 IFFT.
- 2010-08-18 22:18:41下载
- 积分:1
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OFDM_R_matlab
使用matlab模拟OFDM信号接收全过程。(OFDM signal using matlab simulation of the entire process of receiving.)
- 2009-05-05 16:37:06下载
- 积分:1
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Jacobi
用jacobi迭代法解线性方程组,的matlab实现。M文件源代码。(Jacobi iterative method for solving linear equations, matlab implementation. M-file source code.)
- 2012-05-10 16:05:18下载
- 积分:1
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PSet_1
Code solves thermal fin equation in matlab.
- 2013-10-24 22:12:21下载
- 积分:1