作者
Shishir B Sahay, T Meghasyam, Rahul K Roy, Gaurav Pooniwala, Sasank Chilamkurthy, Vikram Gadre
发表日期
2015/6
期刊
Sadhana
卷号
40
页码范围
1049-1075
出版商
Springer India
简介
This paper is targeted towards a general readership in signal processing. It intends to provide a brief tutorial exposure to the Fractional Fourier Transform, followed by a report on experiments performed by the authors on a Generalized Time Frequency Transform (GTFT) proposed by them in an earlier paper. The paper also discusses the extension of the uncertainty principle to the GTFT. This paper discusses some analytical results of the GTFT. We identify the eigenfunctions and eigenvalues of the GTFT. The time shift property of the GTFT is discussed. The paper describes methods for estimation of parameters of individual chirp signals on receipt of a noisy mixture of chirps. A priori knowledge of the nature of chirp signals in the mixture – linear or quadratic is required, as the two proposed methods fall in the category of model-dependent methods for chirp parameter estimation.
引用总数
2017201820192020202122241