A Real-Time Digital Telephone Simulation on the Lincoln Digital Voice Terminal (1975)
Defense Technical Information Center · leaf 32
F(w) (transform of f(t)) F (o>) (transform of cos to ) COS v 1 M -U) 0) c c a) Modulated up 1 -w 0) c c b) Band pass filtered to exclude frequencies below c) Modulated down at receiver d) Low pass filtered to restore F(co) Fig. 1. Single side band modulation demodulation technique. 24
Seneff, Stephanie · Massachusetts inst of tech lexington lincoln lab · Telephone systems · Amplitude modulation · Computerized simulation · Degradation · Digital systems · Distortion · Multiplexing · Real time · Single sideband communications · Speech · Vocoders
Internet Archive · Defense Technical Information Center · Public domain (US government work). Free to use for anything.
