从低通滤波器系数的角度,给出了伸缩因子为3的插值正交尺度函数的一个刻画,同时讨论了对称插值正交尺度函数的刻画问题,最后给出一个实例.
In this paper, some new characterizations about a cardinal orthogonal scaling function from the point of view of low filter coefficient are given, and its symmetry is discussed. At last an example is given.