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Interference Characteristics of Pulse-Time Modulation

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1 Author(s)
Kretzmer, E.R. ; Formerly, Massachusetts Institute of Technology, Cambridge, Mass., now, Bell Telephone Laboratories, Inc., Murray Hill, N.J.

The interference characteristics of pulse-time modulation are analyzed mathematically and experimentally; particular forms examined are pulse-duration and pulse-position modulation. Both two-station and two-path interference are considered. Two-station interference is found to be characterized by virtually complete predominance of the stronger signal, and by noise of random character. Two-path interference, in the case of single-channel pulse-duration modulation, generally permits fairly good reception of speech and music signals.

Published in:

Proceedings of the IRE  (Volume:38 ,  Issue: 3 )