Improved Kalman filter method considering multiple factors and its application in landslide predicti

来源 :地球科学前沿 | 被引量 : 0次 | 上传用户:WSZHOUSHUWU
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
Landslides,seriously threatening human lives and environmental safety,have become some of the most catastrophic natural disasters in hilly and mountainous areas worldwide.Hence,it is necessary to forecast landslide deformation for landslide risk reduction.This paper presents a method of predicting landslide displace-ment,i.e.,the improved multi-factor Kalman filter(KF)algorithm.The developed model has two advantages over the traditional KF approach.First,it considers multiple external environmental factors(e.g.,rainfall),which are the main triggering factors that may induce slope failure.Second,the model includes random disturbances of triggers.The proposed model was constructed using a time series which consists of over 16-month of data on landslide movement and precipitation collected from the Miaodian loess landslide monitoring system and nearby meteorological stations in Shaanxi province,China.Model validation was performed by predicting movements for periods of up to 7 months in the future.The performance of the developed model was compared with that of the improved single-factor KF,multi-factor KF,multi-factor radial basis function,and multi-factor support vector regression approaches.The results show that the improved multi-factor KF method outperforms the other models and that the predictive capability can be improved by considering random disturbances of triggers.
其他文献
婚前检查是走向婚姻殿堂的男女必须履行的一道带强制性的手续,不参加婚前检查,就领不到热恋中男女梦寐以求的大红结婚证书。我国在1994年颁布的《中华人民共和国母婴保健法
会议
1988年9月,第六届国际热处理大会在美国芝加哥召开。开幕式上,一位来自大洋彼岸的中国人以流畅的英语,向世界各国的同行专家宣读大会特邀的两个主旨专题报告之一——《低碳
邓小平是全党全军全国各族人民公认的享有崇高威望的卓越领导人,伟大的马克思主义者,伟大的无产阶级革命家、政治家、军事家、外交家,久经考验的共产主义战士,中国社会主义改
糖尿病是一种糖、脂、水代谢紊乱的疾病。高血糖是糖尿病人的主要特征之一,而糖尿病人在治疗过程中发生低血糖者并不少见。但往往被患者、家属或医生忽视。 Diabetes is a
又是泡桐花开时。阳春三月,记者从郑州赶到兰考县城,叩响了焦裕禄夫人徐俊雅的院门。保姆领记者穿过整洁雅致、种满花草的院子,来到客厅。这时,徐俊雅已从里屋迎了出来。老人
海洋,烟波浩渺的水天世界,倾注了中国人太多的情感。郑和率领的世界上第一支最庞大的远洋船队,奏响了人类征服大洋的凯歌。400年之后,帝国主义的坚船利炮却轰开了中国的大门
Rock crevices are important retreat sites for many reptiles.Unlike lizards and snakes,crevice-dwelling turtles have rigid shells which severely limit the size a
介绍了线性方程组的消元法的解题步骤,及用此法如何巧解生活中相关的一道难题,并提出此类解题的思路及应注意的问题,指出不能教条地应用线性方程组的消元法,应紧扣题目的限制