摘要
为突出最新观测数据对未知参数估计的影响及减弱陈旧观测数据对参数估计的影响 ,须考虑时变参数的变动而进行未知参数的估计 ,即实时估计。文中基于序贯算法 ,针对新观测值对未知参数估计的影响比陈旧观测值要大和用固定数目的最新观测值来确定未知参数的估计 ,导出了渐消记忆与限定记忆的实时序贯算法的主要公式 ,以达到快速计算的目的。
To give prominence to the influence of the new observation on the unknown parameter and weaken the influence of the older observation, the real time estimation is put forward based on considering the change of the parameters and the observations along with the time by author. The main formulae, for the real time sequential algorithm of the regression memory, that consider the influence of the new observations on the unknown parameter rather than the older observations and the real time sequential algorithm of the restriction memory that the estimation of the unknown parameters using the fixed number observations, have been derived in light of the sequential algorithm of adjustment, so that the inverse of the normal equation be avoided, the object of the fast computation has been achieved.
出处
《测绘学院学报》
北大核心
2002年第3期165-167,173,共4页
Journal of Institute of Surveying and Mapping
基金
国家自然科学基金资助项目 (4 0 1710 82 )
