Method and system for target localization
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United States of America Patent
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Dec 23, 2003
Grant Date -
N/A
app pub date -
Mar 27, 2002
filing date -
Mar 27, 2002
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Abstract
The present inventions comprise a method of estimating a minimum range for a target with respect to a first point of interest, independent of actual, range to the target, comprising obtaining three bearing data points; using the three bearing data points to determine a speed contribution V.sub.os of a first point of interest to a distance from a relative velocity vector over a time frame comprising t.sub.0 to t.sub.0 '; determining an angle .theta..sub..beta. as defined by the bearing relative to ownship's heading at the point in time of closest approach to a second point of interest; and calculating a minimum range using a predetermined formula.
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