Extended spatial acquisition method for tracking antennas

Details Extended spatial acquisition method for tracking antennas Extended spatial acquisition method for tracking antennas

1997-10-01

1999-09-14

Hellner, Mark

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

Directive

Including antenna orientation

342 75, H01Q 300

Patent

active

059529628

ABSTRACT:
An extended spatial acquisition method extends the spatial acquisition range for tracking antennas. The method employs a multiple feed cluster to sense the received signal with high sensitivity and to spatially acquire the received signal when uncertainty in the received signal arrival direction exceeds several beamwidths. A main beam consisting of a collection of beams including a central beam and surrounding beams of the cluster extend the spatial acquisition range to include the surrounding beams. Feed signal strengths are measured to determine where within the extended field of view a desired signal arrives and then the antenna is repositioned to point the central beam toward the desired signals after which central beam tracking occurs.

REFERENCES:
patent: 3406393 (1968-10-01), Kulik
patent: 5245348 (1993-09-01), Nishikawa et al.
patent: 5274382 (1993-12-01), Wills et al.

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