Title :
Towards an ideal data acquisition channel
Author :
Pintelon, R. ; Rolain, Y. ; Bossche, M. Vanden ; Schoukens, J.
Author_Institution :
Dept. ELEC, Vrije Univ. Brussels, Belgium
Abstract :
A method is presented for compensating in real-time for the transfer function of a data acquisition channel by means of a digital IIR (infinite impulse response) filter. The theory behind the measurement is developed, the experimental setup is described, and the estimation results are presented. Real-time experiments have shown that correction within a long-term error of ±0.01 dB on the flatness of the amplitude and 0.1° on the linearity of the phase is possible
Keywords :
analogue-digital conversion; compensation; data acquisition; digital filters; compensation; correction; data acquisition channel; digital filter; digital infinite impulse response filter; flatness; linearity; long-term error; real-time; transfer function; Attenuation; Calibration; Data acquisition; Digital filters; Equalizers; Frequency; IIR filters; Passband; Signal processing algorithms; Transfer functions;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 1989. IMTC-89. Conference Record., 6th IEEE
Conference_Location :
Washington, DC
DOI :
10.1109/IMTC.1989.36869
