Development of a laser range finder using a phase difference method

Heesun Yoon; Kyihwan Park

doi:10.1117/12.648820

6 December 2005 Development of a laser range finder using the phase difference method

Heesun Yoon, Kyihwan Park

Proceedings Volume 6049, Optomechatronic Sensors and Instrumentation; 60490R (2005) https://doi.org/10.1117/12.648820
Event: Optomechatronic Technologies 2005, 2005, Sapporo, Japan

Abstract

Making a map by using global sensor information is a mainstream tool in a mobile robot's navigation. It requires specific vision system such as a CCD camera, range finding system, and many other things. A laser range finder has highly collimated beams that can be obtained easily, thus achieving high lateral resolution, and the short wavelengths involved cause the light to be backscattered, rather than reflected by the target. For signal processing, the phase difference method using frequency modulation/demodulation is addressed in this paper. We used a diffused reflected beam to detect the phase shift in this system. But this beam has a minute signal and can be easily buried in nose. A modulation/demodulation method is used to measure the signals which are buried in noise.

Citation Download Citation

Heesun Yoon and Kyihwan Park "Development of a laser range finder using the phase difference method", Proc. SPIE 6049, Optomechatronic Sensors and Instrumentation, 60490R (6 December 2005); https://doi.org/10.1117/12.648820

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available