A method for the processing of signal from an absolute distance meter based on a frequency-modulated continuous-wave (FMCW) interferometer is presented. FMCW is implemented using a laser diode driven by a current waveform obtained as the superposition of a triangular signal to a bias current kept well above the diode lasing threshold. The analog signal pre-processing includes a derivative block followed by the time-variant baseline restoration of the photodetector current. A high signal-to-noise ratio is ensured by avoiding the use of a resistive transimpedence preamplifier and subsequent voltage processing. The paper details the scheme of the pre-processing chain as well as the experimental results from an actual prototype of a distance meter
Analog signal pre-processing for performance enhancement of a distance meter based on frequency-modulated continuous-wave interferometry / Rovati, Luigi; U., Minoni. - STAMPA. - 2(1998), pp. 1141-1144. ((Intervento presentato al convegno Instrumentation and Measurement Technology Conference IMTC/98 tenutosi a USA nel 1998-May.
Data di pubblicazione: | 1998 |
Titolo: | Analog signal pre-processing for performance enhancement of a distance meter based on frequency-modulated continuous-wave interferometry |
Autore/i: | Rovati, Luigi; U., Minoni |
Autore/i UNIMORE: | |
Codice identificativo Scopus: | 2-s2.0-0031682783 |
Codice identificativo ISI: | WOS:000074362400227 |
Nome del convegno: | Instrumentation and Measurement Technology Conference IMTC/98 |
Luogo del convegno: | USA |
Data del convegno: | 1998-May |
Volume: | 2 |
Pagina iniziale: | 1141 |
Pagina finale: | 1144 |
Citazione: | Analog signal pre-processing for performance enhancement of a distance meter based on frequency-modulated continuous-wave interferometry / Rovati, Luigi; U., Minoni. - STAMPA. - 2(1998), pp. 1141-1144. ((Intervento presentato al convegno Instrumentation and Measurement Technology Conference IMTC/98 tenutosi a USA nel 1998-May. |
Tipologia | Relazione in Atti di Convegno |
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