Accession Number:

AD0751639

Title:

An Optical Object Detection System for Sensing Obstructions to Low Speed Vehicles.

Descriptive Note:

Master's thesis,

Corporate Author:

NAVAL POSTGRADUATE SCHOOL MONTEREY CALIF

Personal Author(s):

Report Date:

1972-06-01

Pagination or Media Count:

53.0

Abstract:

An object detection system to sense obstructions in the path of low speed vehicles is described. The system uses a pulsed GaAs diode laser as an illuminator, and a PIN photodiode as a detector. Reliable detection of objects with an effective area as small as 0.5 sqft was achieved. A signal processor using active filters and a phase-locked loop tone decoder was employed for both phase and frequency rejection of undesired signals, and detection of objects under high ambient light conditions. Author

Subject Categories:

  • Surface Transportation and Equipment
  • Safety Engineering

Distribution Statement:

APPROVED FOR PUBLIC RELEASE