拟合推估新解之一——两步解法

A Two Steps Solution of Collocation

拟合推估的一般模式AmnmX +BrnrY =L+Δ (1 )通常用双拟合法则 (2 )求解 ,它有一定的缺陷[1 ] 。本文提出一种解法 ,分为 2步 :1 .将Y项并入Δ ,在单拟合下求X的优估值 ^X。2 .把 ^X项纳入L ,Y作确定未知量 。

Take the general model of collocation AmnmX+BrnrY=L+Δ (1) The current solution is found under the bi fitting rule (2), it has some shortcoming . This paper puts forward a two steps solution: 1. Term Y is incorporated into Δ , then find the best estimate under the singular fitting rule. 2. Term being incorporated into L, is found also under a singular fitting rule.