局部特征尺度分解改进算法

Improved Algorithm of Local Characteristic-Scale Decomposition

针对局部特征尺度分解估计包络曲线时未考虑其凹凸性的问题,提出了一种改进的算法。首先,利用3次样条插值方法进行均值点估计,结合前向以及后向插值2种方法,给出了双向形式;其次,参照标准算法,给出了具体的改进算法实现步骤;最后,通过仿真实例验证了有效性。

An improved algorithm was proposed focusing on the problem of envelope curves estimated without considering convexity when local characteristic-scale decomposition was used.Firstly,the cubic spline interpolation method was used to estimate the mean points.Secondly,the implementation steps of the improved algorithm were given by referring to the standard algorithm.Finally,the effectiveness was illustrated by simulation examples.