Apparatus and method for measuring the azimuth and elevation of an object
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United States of America Patent
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-
Oct 1, 1991
Grant Date -
N/A
app pub date -
Jun 7, 1990
filing date -
Jun 14, 1989
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention concerns an apparatus and method for measuring the azimuth and elevation of an object. The apparatus includes a platform; a base plate arranged to the construction of the platform rotatably in a plane, which is essentially horizontal; a sensor frame attached to the base plate; at least three sensor elements attached to the sensor frame; and an electronics unit for the control of the sensor elements, capable of performing the processing of signals received by the sensors. The sensor frame is rigidly attached to the base plate and the directional pattern of the sensor elements is such as to cover the entire angle span of interest in the elevation plane, while the pattern covers an essentially narrower angle in the azimuth plane. The direction finder does not easily lose the tracked object performing movements particularly in the elevation plane.
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