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Pulsed time-of-flight laser radar module with millimeter-level accuracy using full custom receiver and TDC ASICs

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3 Author(s)
P. Palojarvi ; Dept. of Electr. Eng., Oulu Univ., Finland ; K. Maatta ; J. Kostamovaara

A laser rangefinding device based on a pulsed time-of-flight distance measurement technique was constructed and tested. The aim, millimeter-level measurement accuracy with low power consumption, cost, and size, were achieved using full-custom application-specific integrated circuits in significant parts of the device, the receiver channel, and the time-to-digital converter. The accuracy of the device with a measurement time of one second and of the optomechanical head used in the measurements is at the mm-level in the case of a noncooperative target at a measurement range from 4 to 34 m and at a temperature between -10°C and +50°C.

Published in:

IEEE Transactions on Instrumentation and Measurement  (Volume:51 ,  Issue: 5 )