A software sampling frequency adaptive algorithm for reducing spectral leakage

Autor:	Pan Li-dong, Wang Fei
Rok vydání:	2006
Předmět:	Adaptive algorithm Computer science business.industry Signal Electronic Optical and Magnetic Materials Harmonic analysis Electric power system Software Control theory Harmonic Spectral analysis Electrical and Electronic Engineering business Spectral leakage Computer Science::Databases
Zdroj:	Frontiers of Electrical and Electronic Engineering in China. 1:375-379
ISSN:	1673-3584 1673-3460
DOI:	10.1007/s11460-006-0072-6
Popis:	Spectral leakage caused by synchronous error in a nonsynchronous sampling system is an important cause that reduces the accuracy of spectral analysis and harmonic measurement. This paper presents a software sampling frequency adaptive algorithm that can obtain the actual signal frequency more accurately, and then adjusts sampling interval base on the frequency calculated by software algorithm and modifies sampling frequency adaptively. It can reduce synchronous error and impact of spectral leakage; thereby improving the accuracy of spectral analysis and harmonic measurement for power system signal where frequency changes slowly. This algorithm has high precision just like the simulations show, and it can be a practical method in power system harmonic analysis since it can be implemented easily.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::8793d488efb81985d90e9c0d7ae505a3 https://doi.org/10.1007/s11460-006-0072-6 Zobrazit plný text záznamu Full text from SpringerLink