Communications: directive radio wave systems and devices (e.g. – Return signal controls radar system – Antenna control
Reexamination Certificate
2007-03-06
2007-03-06
Gregory, Bernarr E. (Department: 3662)
Communications: directive radio wave systems and devices (e.g.,
Return signal controls radar system
Antenna control
C342S073000, C342S075000, C342S077000, C342S089000, C342S094000, C342S095000, C342S104000, C342S106000, C342S109000, C342S118000, C342S175000, C342S195000, C367S087000, C367S089000, C367S095000, C367S099000, C367S103000
Reexamination Certificate
active
10928853
ABSTRACT:
A target tracking arrangement predicts the state of a target. The predictor may be a Kalman filter. In the presence of a target which is maneuvering, the prediction may be in error. A maneuver detector is coupled to receive residuals representing the difference between the predictions and the target state. The maneuver detector is matched to the predictor or Kalman filter to thereby tend to reduce the undesirable effects of system noise. The matching may be of the frequency response.
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Duane Morris LLP
Gregory Bernarr E.
Lockheed Martin Corporation
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