To obtain a signal processor for a DBF (Digital Beam Forming) antenna device capable of easily corresponding to a change in the number of antenna elements.
The signal processor for a DBF antenna device is provided with a plurality of signal processing units 8 provided in each antenna element 1 of an array antenna having a plurality of antenna elements 1 to convert a received signal of each antenna element 1 into a baseband signal and subsequently execute beam synthesis processing, serial ports 7 for sequentially making connection between the signal processing units 8, and data transfer controller 12 respectively provided in the plurality of signal processing units 8 to control the transmission and reception of the baseband signal through the serial port 7 on the basis of multiplexing information and transmission and reception destination information determined in accordance with the baseband signal.
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Tadahiko Inaba
Kanako Murakami
Nakatsuru Kazutaka