Title :
Group delay measurements of a transmission line using single channel measurements
Author :
Van Wassenhove, Daniel ; Schoukens, Johan
Author_Institution :
Vynckier, Gent, Belgium
fDate :
2/1/1990 12:00:00 AM
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;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
