Accession Number : ADD003655
Title : High Accuracy Sweep Oscillator System.
Descriptive Note : Patent,
Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C
Personal Author(s) : Sandford,Wayne H , Jr ; Bates,Albert M
Report Date : 04 Jan 1977
Pagination or Media Count : 9
Abstract : A voltage controlled sweep oscillator system which is stepped in frequencies is described. Only discrete frequencies are provided by dividing the system into two segments wherein each segment comprises a voltage-controlled oscillator (VCO) in a phase-locked loop. A multiplexer provides one VCO signal to the output while the other VCO is stepping its frequency, and vice versa. Frequency control in each segment is achieved by comparing the divided output of a VCO with a reference frequency signal and making adjustments to cancel any errors that may appear.
Descriptors : *Patents, *Sweep generators, *Voltage controlled oscillators, *Sweep frequency techniques, *Phase locked systems, Multiplexing, Waveforms
Subject Categories : Electrical and Electronic Equipment
Distribution Statement : APPROVED FOR PUBLIC RELEASE