A simple and reliable counting and display circuit for laser rangefinder

Khaled Gasmi

doi:10.1117/12.2588197

18 April 2021 A simple and reliable counting and display circuit for laser rangefinder

Khaled Gasmi

Proceedings Volume 11772, Optical Sensors 2021; 1177219 (2021) https://doi.org/10.1117/12.2588197
Event: SPIE Optics + Optoelectronics, 2021, Online Only

Conference Poster

Abstract

A digital counting and display circuit for long distance laser rangefinder is presented. The laser rangefinder uses a pulsed Nd:YAG laser emitting in the near-infrared spectral region at the wavelength of 1.06 micrometer to measure distances to targets with a resolution of 5 m, an accuracy of +/- 1.5 m, and a maximum range of 15 km based on a direct time-of-flight method. The detection is achieved with a probability of detection of 0.99 and a probability of false alarm of 1.5X10^-7. The digital circuit is characterized by its simplicity, versatility and reliability. It is placed at the end of an optoelectronic detection chain formed by a silicon avalanche photodiode, a low-noise and fast multistage amplifier, and a fast analog-to-digital converter.

Conference Presentation

Citation Download Citation

Khaled Gasmi "A simple and reliable counting and display circuit for laser rangefinder", Proc. SPIE 11772, Optical Sensors 2021, 1177219 (18 April 2021); https://doi.org/10.1117/12.2588197

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