Communications: directive radio wave systems and devices (e.g. – Directive – Including antenna orientation
Patent
1994-11-01
1997-05-13
Issing, Gregory C.
Communications: directive radio wave systems and devices (e.g.,
Directive
Including antenna orientation
H01Q 300
Patent
active
056297092
ABSTRACT:
An antenna tracking control device includes detectors for detecting speed and the steering angle of a movable body, a device for calculating the estimated azimuth angle of the movable body based on the detected speed and steering angle, and a detector for detecting the azimuth angle of the movable body. Also, an azimuth angle error estimator is provided for calculating the error between the calculated estimated azimuth angle and the detected azimuth angle. In addition, a directing angle error detector is used for detecting antenna directing angle error, and a directing angle error corrector is used for correcting the detected antenna directing angle error, with the result that the antenna tracking control device causes an antenna mounted on a moveable body, such as an automobile, to track a wave generating source based on the corrected antenna directing angle error.
REFERENCES:
patent: 4630056 (1986-12-01), Noguchi et al.
patent: 4725843 (1988-02-01), Suzuki et al.
patent: 4841303 (1989-06-01), Anderson
patent: 5241319 (1993-08-01), Shimizu
Issing Gregory C.
NEC Corporation
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