Prony Toolbox is a software tool in MATLAB which performs Prony analysis. Prony Toolbox (PTbox) is designed based on several considerations including data preprocessing, model order selection, model order selection criteria, signal subspace selectio
针对传统的Prony算法在谐波及间谐波检测过程中对噪声敏感,导致辨识精度不高的问题,提出了一种基于奇异值分解(Singular Value Decomposition,SVD)和Prony的改进算法。基于SVD理论,提出了一种奇异点辅助算法,自适应地选取奇异值分解的有效阶次,从而精确地滤除噪声信号。基于已确定的有效阶次,利用改进的Prony算法对滤除噪声之后的信号进行参数辨识,可以准确地估计出各个谐波及间谐波分量的参数。通过MATLAB仿真分析,表明算法能够准确地提取出电力信号的参数信息,具有一