Accession Number : AD0753612

Title :   The Design and Performance of a Circuit to Measure the Tuning Error of Single-Sideband Radio Receivers.

Descriptive Note : Master's thesis,

Corporate Author : NAVAL POSTGRADUATE SCHOOL MONTEREY CALIF

Personal Author(s) : Jones,David Allan

Report Date : SEP 1972

Pagination or Media Count : 43

Abstract : A circuit which generates a sinusoidal voltage of the same frequency as the tuning error is examined analytically and experimentally. The design of the circuit is based on the principle that vowel sounds in human speech are periodic. The inputs to the circuit are the audio output of the SSB receiver for which the tuning error is desired and the audio output of an envelope detector which amplitude demodulates the SSB radio signal. The envelope detector provides a reference signal which is a harmonic of the fundamental modulating frequency of the SSB radio signal. This reference signal and the SSB receiver audio are nonlinear processed to generate the error voltage. Receiver tuning errors as small as 0.1 Hertz were measured using this circuit. (Author)

Descriptors :   (*RADIO RECEIVERS, SINGLE SIDEBAND COMMUNICATIONS), TUNING DEVICES, ERRORS, MONITORS, RADIOFREQUENCY, THESES

Subject Categories : Radio Communications

Distribution Statement : APPROVED FOR PUBLIC RELEASE