Distortion of Correlation Analysis Caused by Identical Frequency Interference

Author

Xin, Fan ; Feng, Han ; Litao, Liang ; Shiming, Gan

Author_Institution

Inner Mongolia Univ. of Technol., Hohhot

fYear

2007

Abstract

Correlation analysis is an important method in signal processing. However, the process and mechanics that the identical frequency interference makes the correlation analysis distorted are not well understood because the expression of correlation function itself is perfect in terms of mathematics. The work carried out an investigation deep into the essence of correlation analysis, proposed a signal model that makes the mechanics of identical frequency interference clear and the experiments for further study being possible. The experimental investigations come to a conclusion that the interference may bring considerable impacts on the distortion, and it may reach as large as 100% or even more.

Keywords

correlation methods; interference (signal); signal processing; correlation analysis; correlation function; identical frequency interference; signal processing; Cause effect analysis; Distortion measurement; Frequency measurement; Harmonic analysis; Information analysis; Instruments; Interference; Mechanical variables measurement; Performance analysis; Signal analysis; Correlation analysis; Correlation coefficient peak; Identical frequency interference; Relative errors; Signal model;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronic Measurement and Instruments, 2007. ICEMI '07. 8th International Conference on

Conference_Location

Xi´an

Print_ISBN

978-1-4244-1136-8

Electronic_ISBN

978-1-4244-1136-8

Type

conf

DOI

10.1109/ICEMI.2007.4350492

Filename

4350492