Measurement of harmonic signal phase with application of low frequency of sampling

• Autorzy: Jodłowski L.
• Języki publikacji: EN

Abstrakty

EN

Measurement of harmonic signal phase is the basis of many measuring methods. Till now, the analog interferometric methods were used and application of digital A/C converters possibility of signal phase measurement basing on the known instantaneous values (samples) of the signal. It is assumed that for univocal determination of signal phase, the sampling frequency should exceed, at least two times, the frequency of the analysed harmonic (Nequist theorem) [1]. In the paper the possibility of application of sampling frequencies (sampling rate) of the values significantly lower that frequencies of the investigated signal was considered

• Wydawca: Silesian Division of Polish Acoustical Society
• Czasopismo: Molecular and Quantum Acoustics
• Rocznik: 1998
• Tom: Vol. 19
• Strony: 111--117
• Opis fizyczny: Bibliogr. 3 poz., rys.

Twórcy

autor

Jodłowski L.

• Institute of Technical Physics Military University of Technology 2 Kaliskiego Str., 01-489 Warsaw, Poland,