DocumentCode
2761487
Title
Implementation of a high-frequency digital lock-in amplifier
Author
Sonnaillon, Maximiliano O. ; Urteaga, Raúl ; Bonetto, Fabián José ; Ordoñez, Martín
Author_Institution
Cavitation & Biotechnol. Lab., Inst. Balseiro, San Carlos de Bariloche
fYear
2005
fDate
1-4 May 2005
Firstpage
1229
Lastpage
1232
Abstract
A high-frequency digital lock-in amplifier that uses non-uniform sampling is proposed and validated experimentally. By using a random sampling strategy, it is possible to process periodic signals of frequencies several times greater than the Nyquist frequency, which is given by the sampling theorem. The implemented instrument, based on a digital signal processor and its associated hardware, is described in this paper. Experimental results show the advantages of the proposed lock-in
Keywords
HF amplifiers; digital signal processing chips; filtering theory; random processes; signal sampling; Nyquist frequency; digital signal processor; high-frequency digital lock-in amplifier; nonuniform sampling; sampling theorem; Amplifiers; Digital signal processing; Digital signal processors; Frequency conversion; Instruments; Phase locked loops; Sampling methods; Signal generators; Signal processing; Signal sampling;
fLanguage
English
Publisher
ieee
Conference_Titel
Electrical and Computer Engineering, 2005. Canadian Conference on
Conference_Location
Saskatoon, Sask.
ISSN
0840-7789
Print_ISBN
0-7803-8885-2
Type
conf
DOI
10.1109/CCECE.2005.1557199
Filename
1557199
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