【计】 时移键控

double frequency shift keying phase shift keying time-shift plus time shift keying shift plate keying keying absorber chroma keying phase keying frequency keying keying relay time-shift keying shift keying phase-shift keying differential phase-shift keying phase-shift keying (PSK) quarternary phase-shift keying frequency shift keying telegraph amplitude shift keying (ASK) frequency shift keying coherent phase-shift keying