Sensory system for vehicle navigation
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United States of America Patent
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-
Jul 18, 1995
Issued Date -
N/A
app pub date -
Jun 15, 1994
filing date -
Nov 1, 1991
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An improved accuracy sensory system for vehicle navigation employs a sensor, such as a compass (515), or an odometer (509), for sensing a navigation parameter of a vehicle. A signal is provided from the sensor, having an erroneous component. A model free recognizer, such as a fuzzy inferencing navigation computer (501), is employed to recognize this erroneous behavior. After recognition, the sensor can be recalibrated, or assigned a clearness coefficient. The signal is then combined with other measurements of the same parameter and subjected to map matching before deriving the final navigation variable.
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