摘要
通过对比建筑形变监测数据的GM(1,1)模型和改进的GM(1,1)残差修正模型建模的预报结果,表明残差修正GM(1,1)模型的预报精度明显高于传统GM(1,1)模型的预报精度,并且二次残差修正GM(1,1)模型的预报精度远高于一次残差修正GM(1,1)模型的预报精度,从而为准确形变预报提供了一种简单而有效地新实践。
This paper compared the prediction results for building deformation monitoring data by the GM(1,1) model and the improved GM(1,1) model.The results indicates that residual error correction GM(1,1) model forecast accuracy is significantly higher than traditional GM(1,1) model forecast accuracy.And the second order residual error correction GM(1,1) model prediction accuracy is much higher than the first order revised residual GM(1,1) model forecast accuracy.It provides a simple and effective new practice to accurately deformation prediction.
出处
《测绘与空间地理信息》
2010年第3期198-200,共3页
Geomatics & Spatial Information Technology
关键词
GM(1
1)模型
残差模型
形变预报
GM(1
1) model
residual error model
deformation prediction