【摘要】 针对因受到一些未知因素的影响,卫星电源系统遥测数据会呈现出非线性、非平稳的特点,首先利用àTrous小波方法建立小卫星电源系统遥测数据的预测模型.在此基础上,根据实际工程应用需要给出了该模型的预测区间构造方法,预测值不再是一个点值,而是具有一定置信度的区间,因此该方法更具有工程实用价值.最后用某小卫星遥测数据验证了所提方法的可行性.更多还原

【Abstract】 Prediction interval technique can not only analyze the trend of future data,but also provide the range of future data at certain confidence degree.Firstly,à Trous wavelet is employed to establish a prediction model for small satellite power system telemetry data,which is non-linear and non-stationary under the influence of certain unknown factors.Then,a prediction interval construction approach for the above model is presented,which generates a prediction value with a certain confidence interval instead of a point value.Finally,the feasibility of the proposed method is also verified using the satellite telemetry data.更多还原