INTERFEROMETRIC GPS ATTITUDE: A STOCHASTIC ERROR MODEL

Authors
  1. McMillan, J.C.
Corporate Authors
Defence Research Establishment Ottawa, Ottawa ONT (CAN)
Abstract
Data was collected from a relatively new type of GPS (Global Positioning System) receiver which measures attitude (heading, pitch and roll) as well as the usual GPS measurements of position and velocity. GPS attitude has the potential to provide rapid and precise attitude for a relatively low cost. Attitude is conventionally determined using inertial equipment, which for precise work is very expensive, large and requires a long "settling time" after turn-on. The receiver being evaluated on this sea trial was an Ashtech Three-Dimensional Direction Finding System (3DF). This report provides some general background on GPS attitude technology, presents the attitude errors observed during this ea trial and characterizes these errors as stochastic processes.
Keywords
ASHTECH THREE-DIMENSIONAL DIRECTION FINDING SYSTEM (3DF)
Report Number
DREO-1168 —
Date of publication
01 Feb 1993
Number of Pages
79
DSTKIM No
94-02199
CANDIS No
131338
Format(s):
Hardcopy;Originator's fiche received by DSIS

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