Interval modulation (IM) of a sinusoidal carrier

Resource Information

The work Interval modulation (IM) of a sinusoidal carrier represents a distinct intellectual or artistic creation found in Internet Archive - Open Library. This resource is a combination of several types including: Work, Language Material, Books.

Label

Interval modulation (IM) of a sinusoidal carrier

Statement of responsibility

by Glen A. Myers and Edgar Leslie Kilborn, Jr

Creator

• Myers, Glen A

Contributor

• Naval Postgraduate School (U.S.)
• Kilborn, Edgar Leslie

Subject

• Telecommunication
• Carrier waves
• Phase-locked loops
• Modulation (Electronics)

Language

eng

Summary

Interval Modulation (IM) of a sinusoidal carrier is a modulation technique unlike AM, FM, or PM. IM conveys the information of a message waveform by modulating an interval between bursts of a sinusoidal carrier. IM is accomplished by sampling the message waveform, producing a delay proportional to the amplitude of the sampled message waveform and, upon the completion of the delay, initiating a burst of a fixed number of full cycles of a sinusoidal carrier. With the completion of the burst, another sample of the message waveform is taken and the sequence of events repeats. Because the length of a burst is fixed and because the delay between bursts is dependent upon the sampled value of the message waveform, the IM signal is non-periodic. An analysis is made of the IM signal modulated by a constant voltage modulating waveform and by general modulating waveforms. Descriptions are given for the circuits used in generation and detection of the IM signal. IM signal parameters are also considered for use with message waveforms in the audio frequency range. (Author)

Cataloging source

AD#

Government publication

federal national government publication

Illustrations

illustrations

Index

no index present

Literary form

non fiction

Nature of contents

• dictionaries
• bibliography
• technical reports

Type of report

Technical report; 1977.