Instantaneous Frequency Estimation of Discrete Time Signals
Journal Title: Acta Marisiensis. Seria Technologica - Year 2018, Vol 15, Issue 1
Abstract
The classical concept of instantaneous frequency, obtained by differentiating the instantaneous phase is one of the most used approaches. Nonlinear signals usually have nonlinear and nonstationary behavior. Revealing hidden properties of time discrete signals could be important in understanding specific phenomena or processes. This paper uses simulated signals to prove the utility of instantaneous frequency estimation in dedicated signal processing. The procedure is based on empirical mode decomposition of the signal into monocomponents. The Hilbert transform of these monocomponents reveals they instantaneous frequencies. There are certain mathematical requirements and limitations for signals that the proposed procedure could perform proper instantaneous frequency estimation. The used signals are artificial and the procedure is carried out in MATLAB.
Authors and Affiliations
Zoltan German-Sallo, Horatiu Grif
Keywords
Related Articles
- EP ID EP451065
- DOI -
- Views 96
- Downloads 0
A Study on Issues and Solutions for Sustainable Development
Problems with complex characters Facing Sustainable Development of Various Interests, and International Cooperation Agreements, the listing of economic globalization and harmonization, both with the object and the issue...
Nonlinear Circuit Elements Influence on the Power Network
This paper presents the most important nonlinear circuit elements, the equivalent circuits and the causes of nonlinearity. This is important because the power quality in the power network is strongly influenced by the no...
Remarks on a Generalization of a Question Raised by Pál Erdős Concerning a Geometric Inequality in Acute Triangles
The purpose of this paper is to give a negative answer to a possible generalization of an open question raised by Pál Erd˝os, concerning an inequality in acute triangles. We prove here that from a < b < c does not follow...
Estimation of Production KWS Maize Hybrids Using Nonlinear Regression
This article approaches the model of non-linear regression and the method of smallest squares with examples, including calculations for the model of logarithmic function. This required data obtained from a study which in...
Study on Designing the Extruder for 3D Printers with Pellets
The purpose of the paper is to design an extruder to ensure continuous flow of material and retraction of the melted material into the extruder of the printers operating with pellets ABS, PLA or other materials used. The...