Applying the recursive least square method to background rebuild, revising the gain factor and bringing in much information forecast more perfect complex background.

研究了渐消记忆递归最小二乘法在背景建立中的应用，修正增益因子，引入更多的背景信息，对复杂背景进行更加完善的预测建立。

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Many problem in rebuild of urban power grid is important, it is background of the thesis.

因此城网改造中有许多问题值得探讨，这正是论文的选题背景。

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