Accession Number : AD0476790


Title :   A METHOD FOR SYNCHRONIZING AN OSCILLATOR WITH A NONSINUSOIDAL PERIODIC WAVEFORM OF VARYING FREQUENCY.


Descriptive Note : 10 T. B.


Corporate Author : NAVAL ORDNANCE LAB WHITE OAK MD


Personal Author(s) : Whiteley, T. B.


Report Date : 10 MAY 1951


Pagination or Media Count : 15


Abstract : A synchronized oscillator method has been devised for interpolating phase angles between the peaks of a nonsinusoidal input signal. Tests show that the oscillator will synchronize with input frequencies between 5 and 60 cps and will follow a step frequency change of 2 cps without loss of synchronism. The feedback loop is analyzed to show the limitations of gain and steady state error. The experimental model is found to have a maximum steady state phase error of six degrees when operating over the range from 10 to 20 cps. A method for reducing this error is suggested. (Author)


Descriptors :   , (*OSCILLATORS, SYNCHRONIZATION(ELECTRONICS)), PROJECTILES, MOTION, ROTATION, RADAR SIGNALS, PERIODIC VARIATIONS, RADAR CROSS SECTIONS, PHASE(ELECTRONICS), SIMULATION, RADAR RECEIVERS, FIRING TESTS(ORDNANCE), CIRCUITS, CLIPPER CIRCUITS.


Distribution Statement : APPROVED FOR PUBLIC RELEASE