Communications: directive radio wave systems and devices (e.g. – Return signal controls radar system – Receiver
Reexamination Certificate
2006-08-14
2009-10-20
Tarcza, Thomas H (Department: 3662)
Communications: directive radio wave systems and devices (e.g.,
Return signal controls radar system
Receiver
C342S095000, C342S097000, C342S106000, C342S109000, C342S113000, C342S115000, C342S133000, C342S140000, C342S145000, C342S146000, C342S189000, C342S195000, C342S451000
Reexamination Certificate
active
07605747
ABSTRACT:
A method for determining or compensating for the positional errors of a sensor tracking a target comprises the steps of operating the sensor to generate sensed information relating to the target and adding any sensor positional bias update information to produce updated sensed information. The target state is propagated to produce time updated state estimates. The Jacobian of the state dynamics and the state transition matrix for the extended Kalman filter algorithm are computed. The covariance of a state vector is time propagated using the state transition matrix.
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Boka Jeffrey B.
Mookerjee Purusottam
Duane Morris LLP
Galt Cassi
Lockheed Martin Corporation
Tarcza Thomas H
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