Portal de Periódicos da CAPES

A method for efficient maximization of PPS estimation functions

2018; Elsevier BV; Volume: 84; Linguagem: Inglês

10.1016/j.dsp.2018.10.003

1095-4333

Marko Simeunović, Igor Djurović,

Machine Fault Diagnosis Techniques

Parameter estimation of polynomial phase signals is usually performed by maximizing the cost function. To reduce the calculation complexity, the maximization consists of coarse and fine estimation stages. To refine coarse estimate, in this paper, we propose a method based on filtering and phase unwrapping of transform function. Simulation experiments have shown excellent results compared to classical fine estimation algorithms such as Aboutanios–Mulgrew and dichotomous search.