The disadvantage of HAF/PHAF-based polynomial-phase estimation method with short and non-polynomial phase sequences is analyzed in this paper and some general conclusions are drawn after simulations.
文中分析了短序列非多项式相位对HAF 及PHAF的影响，并通过仿真实验给出了具有一般性的结论。
2
New method of parameter estimation for time varying non linear distributed systems is proposed in term of orthogonality of orthogonal polynomial and differential operation matrix.
利用正交多项式序列的正交性及微分算子矩阵，论述了时变非线性分布参数系统参数估计的正交多项式法。
3
A non-linear higher order polynomial fitting method is also proposed to transform the resistivity profile into seismic velocity profile under the control of a micro-well logging velocities.