𝔖 Bobbio Scriptorium
✦   LIBER   ✦

A novel approach for characterizing the nonlinear phase steps of the PZT in interferometry

✍ Scribed by Rajesh Langoju; Abhijit Patil; Pramod Rastogi


Publisher
Elsevier Science
Year
2007
Tongue
English
Weight
277 KB
Volume
45
Category
Article
ISSN
0143-8166

No coin nor oath required. For personal study only.

✦ Synopsis


We propose a novel approach to estimate the phase distribution in the presence of nonlinear response of the PZT. The proposed method is an outcome of two different concepts based on the discrete chirp Fourier transform (DCFT) and the maximum-likelihood estimator for the estimation of nonlinear phase step. The robustness of the proposed method is tested for various magnitudes of nonlinearity and harmonics. Comparison of our proposed method with the bench marking algorithm by Hibino et al.'s six and nine sample algorithm in the presence of noise shows that our method is highly efficient.


πŸ“œ SIMILAR VOLUMES


A comprehensive approach to characteriza
✍ Jianhua Xu; Weihong Li; Minhe Ji; Feng Lu; Shan Dong πŸ“‚ Article πŸ“… 2009 πŸ› John Wiley and Sons 🌐 English βš– 207 KB

## Abstract Nonlinear characteristics of the runoff processes in the headwaters of the Tarim River were identified and evaluated using several selected methods, including wavelet analysis, correlation dimension, and R/S analysis. Time‐series of annual data describing runoff, average temperature, an