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 μm 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 1.5×10-7. 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.
Original language | English |
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Title of host publication | Optical Sensors 2021 |
Editors | Francesco Baldini, Jiri Homola, Robert A. Lieberman |
Publisher | SPIE |
ISBN (Electronic) | 9781510643789 |
DOIs | |
State | Published - 2021 |
Publication series
Name | Proceedings of SPIE - The International Society for Optical Engineering |
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Volume | 11772 |
ISSN (Print) | 0277-786X |
ISSN (Electronic) | 1996-756X |
Bibliographical note
Publisher Copyright:© 2021 SPIE.
Keywords
- Avalanche photodiode
- Counting
- Display
- Laser
- Range finder
- Time-of-flight
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Computer Science Applications
- Applied Mathematics
- Electrical and Electronic Engineering