That is, the time waveform of the signal that is decoded by the analog matched filter and output is a signal that reflects {(D1???C1)+(D2???C2)+(D3???C3)+ . . . }???C1=(D???C1)???C1+(D2???C2)???C1+(D3???C3)???C1+ . . . =D1???C1 2+(D2???C2???C1)+(D3???C3???C1)+ . . . .