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优秀论文及配套源码 SVM Short-term-Load-Forecasting
优秀论文及配套源码。首先阐述了负荷预测的应用研究现状，概括了负荷预测的特点及其影响因素，归纳了短期负荷预测的常用方法，并分析了各种方法的优劣；接着介绍了作为支持向量机（SVM）理论基础的统计学习理论和SVM的原理，推导了SVM回归模型；本文采用最小二乘支持向量机（LSSVM）模型，根据浙江台州某地区的历史负荷数据和气象数据，分析影响预测的各种因素，总结了负荷变化的规律性，对历史负荷数据中的“异常数据”进行修正，对负荷预测中要考虑的相关因素进行了归一化处理。LSSVM中的两个参数对模型有很大影响，而目前依然是基于经验的办法解决。对此，本文采用粒子群优化算法对模型参数进行寻优，以测试集误差作为判决依据，实现模型参数的优化选择，使得预测精度有所提高。实际算例表明，本文的预测方法收敛性好、有较高的预测精度和较快的训练速度。(first expounds the recent application research of load forecasting, summarized the characteristics of load forecasting and influencing factors, summed up common methods of short-term load forecasting, and analyzed the advantages and disadvantages of each method then introduced statistical learning theory and the principle of SVM as the basis of support vector machine (SVM ) theory, SVM regression model is derived this paper adopted least squares support vector machine (LSSVM) model, according to the historical load data and meteorological data of a certain area of Zhejiang Taizhou, Analysised the various factors affecting the forecast, summed up the regularity of load change , amended "outliers" in the historical load data,the load forecasting factors to be considered were normalized. The two parameters of LSSVM have a significant impact on the model, but it is still soluted based on the experience currently. So, this paper adopted particle swarm optimization algorithm to optimized )
- 2021-04-01 17:09:08下载
- 积分：1
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111
极大似然法，估算已知结点的位置，求出误差(Maximum likelihood method to estimate the location of known nodes, find the error)
- 2009-07-17 15:35:42下载
- 积分：1
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OFDM-xianfu
说明： 在OFDM系统中，采用限幅法降低峰均功率比，该文件包括了流程图和matlab源码(In OFDM system, using limiting PAPR reduction method, the document includes flow charts and source code matlab)
- 2021-02-21 23:29:41下载
- 积分：1
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show23
说明： 我的matlab提取ROi程序，比较简洁，但很实用。(My matlab extract ROi procedure is relatively simple, but very practical.)
- 2011-04-14 19:45:11下载
- 积分：1
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bishematlab
毕设可能会用到的很好用的mimo程序，很重要计算信道的(Completed the set may be used with MIMO program, it is important to calculate the channel)
- 2013-05-12 23:35:19下载
- 积分：1
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e29
利用最小方差方法估计复正弦加白噪声得平稳信号的功率谱(After using the method of minimum variance estimate sine smooth white noise to the signal power spectrum)
- 2013-11-02 14:50:17下载
- 积分：1
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CLASSICALMUSIC1
MUSIC算法[1] 是一种基于矩阵特征空间分解的方法。从几何角度讲，信号处理的观测空间可以分解为信号子空间和噪声子空间，显然这两个空间是正交的。信号子空间由阵列接收到的数据协方差矩阵中与信号对应的特征向量组成，噪声子空间则由协方差矩阵中所有最小特征值（噪声方差）对应的特征向量组成。MUSIC算法就是利用这两个互补空间之间的正交特性来估计空间信号的方位。噪声子空间的所有向量被用来构造谱，所有空间方位谱中的峰值位置对应信号的来波方位。MUSIC算法大大提高了测向分辨率，同时适应于任意形状的天线阵列，但是原型MUSIC算法要求来波信号是不相干的。(algorithm MUSIC is a method based on matrix feature space decomposition. From a geometric point of view, the signal processing of the observation space can be decomposed into signal subspace and noise subspace, it is clear that these two spaces are orthogonal. Signal subspace by the array received data covariance matrix and signal corresponding to the feature vector and noise subspace is by the covariance matrix of all minimum feature values (noise variance) corresponding to the feature vectors are composed. MUSIC algorithm is to use the orthogonal characteristics of these two complementary space to estimate the azimuth of spatial signals. All vectors of the noise subspace are used to construct spectral, and the peak position in all spatial azimuth spectra correspond to the direction of arrival of the signal. MUSIC algorithm greatly improves the direction finding resolution, and at the same time it is suitable for the antenna array of any shape, but the prototype MUSIC algorithm requir)
- 2016-01-23 11:33:07下载
- 积分：1
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seriescommmatlab
利用matlab编写的串行通信助手程序，GUI界面对学通信的应该很有帮助(Matlab serial communication using a helper application written, GUI interface should be helpful in learning to communicate)
- 2010-11-12 17:55:33下载
- 积分：1
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MATLABshipin
说明： 基于ＭＡＴＬＡＢ的信号时频仿真资料，希望对大家有所帮助(MATLAB-based simulation of time-frequency data, we hope to help)
- 2011-03-31 22:50:22下载
- 积分：1
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HeShiGongShi
判断输入的式子是否为合适公式，如果是则输出其真值表(The appropriate formula to determine its truth table)
- 2009-12-21 22:43:10下载
- 积分：1
