Method and apparatus for accurate aircraft and vehicle tracking
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United States of America Patent
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Nov 7, 2006
Issued Date -
N/A
app pub date -
Dec 23, 2003
filing date -
Mar 5, 1999
priority date (Note) -
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Abstract
A direct multilateration target tracking system is provided with the TOA time stamp as an input. A technique of tracking targets with varying receiver combinations is provided. Methods of correlating and combining Mode A, Mode C, and Mode S messages to enhance target tracking in a passive surveillance system are provided. A direct multilateration target tracking system is provided by TOA tracking and smoothing. A technique for selecting best receiver combination and/or solution of multilateration equations from a multitude of combinations and/or solutions is provided. A technique for correcting pseudorange values with atmospheric conditions is provided. A technique for improving height determination for regions of poor VDOP in a 3D multilateration system is provided.
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