Available Technology

Video guidance sensor system with integrated rangefinding

A video guidance sensor system for use, e.g., in automated docking of a chase vehicle with a target vehicle. The system includes an integrated rangefinder sub-system that uses time of flight measurements to measure range. The rangefinder sub-system includes a pair of matched photodetectors for respectively detecting an output laser beam and return laser beam, a buffer memory for storing the photodetector outputs, and a digitizer connected to the buffer memory and including dual amplifiers and analog-to-digital converters. A digital signal processor processes the digitized output to produce a range measurement.
Inventors: 

Fred D. Roe, Jr.

Joseph L. Bell

Michael L. Book

Richard T. Howard

Thomas C. Bryan

Patent Number: 
US7006203
Patent Issue Date: 
March 28, 2006
Agency
NASA
Region
Southeast
State: 
Alabama
Phone: 
256-544-9151
Email: 
terry.taylor@nasa.gov
Lab Representatives
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