| 测量数据处理的实时序贯算法 |
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| 引用本文： | 周世健,张立亭,等.测量数据处理的实时序贯算法[J].测绘学院学报,2002,19(3):165-167,173. |
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| 作者姓名： | 周世健 张立亭 |
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| 作者单位： | 华东地质学院测量系 江西抚州344000
(周世健，张立亭)，华东地质学院测量系 江西抚州344000(鲁铁定) |
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| 基金项目： | 国家自然科学基金资助项目 (4 0 1710 82 ) |
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| 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。
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| 关 键 词： | 测量数据处理 实时序贯算法 渐消记忆 限定记忆 遗忘因子 参数估计 |
The Real-time Sequential Algorithm for Surveying Data Processing |
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| ZHOU Shi jian,ZHANG Li ting,LU Tie ding.The Real-time Sequential Algorithm for Surveying Data Processing[J].Journal of Institute of Surveying and Mapping,2002,19(3):165-167,173. |
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| Authors: | ZHOU Shi jian ZHANG Li ting LU Tie ding |
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| Abstract: | 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. |
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| Keywords: | real time sequential algorithm regression memory restriction memory obliviom factor |
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