Signal generation apparatus, signal generation method, and computer program

Abstract

A signal generation device that includes a digital signal processing unit, a plurality of digital-analog conversion units that respectively converts a plurality of digital signals output from the digital signal processing unit into analog signals, and an analog multiplexer that interleaves the analog signals respectively output from the plurality of digital-analog conversion units to generate a broadband signal, in which the digital signal processing unit includes a serial-parallel conversion unit that divides an input signal into a number according to a ratio between a sampling frequency of the plurality of digital-analog conversion units and a clock frequency of the analog multiplexer in a time domain to generate a plurality of divided signals, and a plurality of convolution arithmetic operation units that receives the plurality of divided signals generated by the serial-parallel conversion unit as inputs and generates a plurality of digital signals corresponding to the respective digital-analog conversion units.