资源与生态学报(英文版)
資源與生態學報(英文版)
자원여생태학보(영문판)
JOURNAL OF RESOURCES AND ECOLOGY
2015年
1期
60-64
,共5页
焦炭价格%预测%状态空间模型%卡尔曼滤波算法
焦炭價格%預測%狀態空間模型%卡爾曼濾波算法
초탄개격%예측%상태공간모형%잡이만려파산법
coke price%forecasting%state space model%Kalman filtering algorithm
焦炭价格预测研究具有重要的理论和实践意义,本文利用卡尔曼滤波算法对焦炭价格进行预测研究。建立状态空间模型时,选取焦炭价格作为唯一的状态变量,通过每一时刻变量观测值与预测值形成的新息,不断更新和迭代,以寻求最优估测值。实证分析表明,该算法对焦炭价格的跟踪和预测效果较好。
焦炭價格預測研究具有重要的理論和實踐意義,本文利用卡爾曼濾波算法對焦炭價格進行預測研究。建立狀態空間模型時,選取焦炭價格作為唯一的狀態變量,通過每一時刻變量觀測值與預測值形成的新息,不斷更新和迭代,以尋求最優估測值。實證分析錶明,該算法對焦炭價格的跟蹤和預測效果較好。
초탄개격예측연구구유중요적이론화실천의의,본문이용잡이만려파산법대초탄개격진행예측연구。건립상태공간모형시,선취초탄개격작위유일적상태변량,통과매일시각변량관측치여예측치형성적신식,불단경신화질대,이심구최우고측치。실증분석표명,해산법대초탄개격적근종화예측효과교호。
Research on coke price forecasting is of theoretical and practical signiifcance. Here, the Kalman ifltering algorithm was used to analyze the price of coke. As the only state variable, the historical coke price is sorted out to build the state space model. The algorithm makes use of innovation composed of the difference between observed and predicted values, and alows us to obtain the optimal estimated value of the coke price via continuous updating and iteration of innovation. Our results show that this algorithm is effective in the ifeld of coke price tracking and forecasting.