Title :
Laser range finder based on fully digital phase-shift measurement
Author :
Poujouly, Stéphane ; Journet, Bernard ; Miller, Dominique
Author_Institution :
ENS Cachan, France
Abstract :
We present a laser range finder based on the flight time measurement principle, and using the phase-shift conversion method. This laser range finder features a new fully digital measurement system based on the undersampling techniques. This technique has been implemented on an evaluation board working at a 10 MHz modulation frequency. The system is designed to be integrated in a complete autonomous device
Keywords :
demodulation; digital filters; frequency modulation; laser ranging; optical information processing; optical modulation; semiconductor lasers; 10 Hz; autonomous device; digital measurement system; evaluation board; flight time measurement principle; fully digital phase-shift measurement; laser range finder; modulation frequency; phase-shift conversion method; undersampling techniques; Demodulation; Diode lasers; Frequency conversion; Frequency measurement; Frequency modulation; Optical attenuators; Optical mixing; Phase measurement; Pulse measurements; Time measurement;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 1999. IMTC/99. Proceedings of the 16th IEEE
Conference_Location :
Venice
Print_ISBN :
0-7803-5276-9
DOI :
10.1109/IMTC.1999.776126
