The present invention relates to a pixel data generating device for generating pixel data that is generated according to a distance from a transmitting source, as pixel data in an XY rectangular coordinate system, based on an echo signal of {HEAD ~ a detection signal} discharged from {TAIL ~ the transmitting source} 
discharged from
The present invention relates to a pixel data generating device for generating pixel data that is generated according to a distance from a transmitting source , as pixel data in an XY rectangular coordinate system , based on an echo signal of { HEAD ~ a detection signal } discharged from { TAIL ~ the transmitting source }
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