Maximum-likelihood rocket identifier

Details Maximum-likelihood rocket identifier Maximum-likelihood rocket identifier

2004-08-13

2008-08-12

Chambers, Troy (Department: 3641)

Communications: directive radio wave systems and devices (e.g.,

Return signal controls radar system

Receiver

C342S095000, C342S096000, C342S097000, C342S101000, C342S195000, C089S001110

Reexamination Certificate

active

07411543

ABSTRACT:
A sensor suite determines location and velocity information relating to a missile threat, which is converted to missile or rocket state estimates. The state estimates are transformed into time-invariant dynamic parameters, unique for each missile type. Estimated rocket dynamic parameters are computed for each target type being considered, and compared with a reference set of rocket parameters representing different target types. The estimated rocket parameters are compared with the reference parameters in a maximum-likelihood sense, and combined using fuzzy logic to identify the rocket type and the likelihood. The identified rocket type and likelihood is used to aid in determining the future location of the missile so countermeasure can be applied.

REFERENCES:
patent: 5631653 (1997-05-01), Reedy
patent: 5798942 (1998-08-01), Danchick et al.
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patent: 6262680 (2001-07-01), Muto
patent: 6278401 (2001-08-01), Wigren
patent: 6564146 (2003-05-01), Meyer et al.
patent: 6714155 (2004-03-01), Rose
patent: 6825792 (2004-11-01), Letovsky
patent: 2004/0056792 (2004-03-01), Miron

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