【摘要】 选择河北省潘家口水库为研究对象,采用PCA算法对数据进行预处理,选取新的主成分作为输入变量,再通过ESN模型对水库水位进行预测。实验结果表明,历史水位、降水量2个因素的变化对水位有较大的影响;ESN预测模型能较好地预测水位变化趋势,误差小,精度高,应用在水位预测上具有可行性和有效性。更多还原

【Abstract】 With Panjiakou Reservoir in Hebei Province as the research object, the PCA algorithm is used to preprocess the data. Then, the new principal component is selected as the input variable, and the water level of this reservoir is forecast through the PCA-ESN model. The experimental results show that the two factors of historical water level and the rainfall have a great impact on the water level. The ESN model can better forecast the trend of the water level changes with small errors and high accuracy, which is feasible and effective in the forecast of water level.更多还原