topographic model

By constructing special digital signal sequences, the relation of the number of levels of zero-crossing points and the M value of MPSK signal was analyzed, and the phenomenon that different phase difference modes correspond to .

通过构造特殊的数字序列,分析了小波系数过零点分层数与MPSK信号的电平数M的对应关系,详细讨论了MPSK信号不同的相位跳变模式与过零点层次性的内在联系。

Recently,an algorithm based on piecewise polynomial phase modeling and high-order ambiguity function(HAF) is developed aiming at this problem.

针对这一问题,近年来发展了基于分段多项式相位建模和高阶模糊函数的(HAF)解电离层污染算法,如何合理地选取模型阶数是该算法的核心。