本文对已有的“协因子”算法进行了改进，并构造了二阶有限元双正交多尺度函数。

So, this method is modified in the article, and the finite element biorthogonal multiwavelets are constructed.

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结果表明，如果我们想从多尺度分析出发构造正交小波，那么该多尺度分析必须有正交尺度函数。

This result shows that if we want to construct orthonormal wavelets from a multireso- lotion, then that multiresolution must have an orthonormal scaling function.

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基于多尺度函数面具的一种特定形式，提出构造一类具有正交、对称、紧支撑的多尺度函数的方法。

Based on a special form of matrix mask, a method of constructing symmetric orthogonal compactly support is presented.

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