Communications: directive radio wave systems and devices (e.g. – Directive – Including a steerable array
Patent
1989-04-11
1990-10-09
Tarcza, Thomas H.
Communications: directive radio wave systems and devices (e.g.,
Directive
Including a steerable array
342374, 367103, G01S 703
Patent
active
049623818
ABSTRACT:
A rectangular antenna array includes a plurality of systolic vertical line arrays. Each vertical line array includes a plurality of signal processors. Within each line array, the signals received at any one moment are held or delayed as required, and the processors progressively form partial sums in an upward direction during first clock intervals and in a downward direction during alternate clock intervals. During each clock intervals, complete sums for one sample interval appear at an end of the vertical line array. The sums appear alternately at the top and the bottom of the line arrays. Beamforming in the horizontal direction is accomplished with systolic horizontal adders coupled to the tops and bottoms of the vertical line arrays. The horizontal adders transfer information and add in one direction during first clock intervals, and then in the other direction during third clock intervals of a four-interval cycle. In a particular embodiment of the invention, multiple inputs and outputs associated with each processor allows continued operation in the event of partial or complete failure of one or more processors.
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General Electric Company
Meise William H.
Swann Tod
Tarcza Thomas H.
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