Group delay measurements of a transmission line using single channel measurements

Author

Van Wassenhove, Daniel ; Schoukens, Johan

Author_Institution

Vynckier, Gent, Belgium

Volume

39

Issue

1

fYear

1990

fDate

2/1/1990 12:00:00 AM

Firstpage

180

Lastpage

183

Abstract

A method is presented for measuring the amplitude and group delay of the transfer function of a system using single-channel measurements. The technique is based on the use of broadband signals. A noise analysis is included to calculate the accuracy of the measurement results for a given signal-to-noise (S/N) ratio. The experiments showed that it is possible to get useful results, even if the S/N ratio is very low. As a main requirement, the digitizer has to have a sufficiently long memory to allow the use of time-averaging techniques

Keywords

characteristics measurement; electric variables measurement; network analysers; transfer functions; transmission lines; 30 to 100 kHz; FFT; S/N ratio; amplitude; broadband signals; group delay; mains; memory; network analyser; noise analysis; single channel measurements; time-averaging; transfer function; transmission line; Delay; Digital signal processing; Distortion measurement; Frequency; Phase measurement; Power transmission lines; Signal analysis; Silicon compounds; Transfer functions; Transmission line measurements;

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/19.50440

Filename

50440