Accession Number : AD0825169

Title :   A STUDY OF FILTERING TECHNIQUES APPLIED TO THE DART ANGULAR RATE SENSOR.

Descriptive Note : Master's thesis,

Corporate Author : AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING

Personal Author(s) : Selberg, Ronald L. ; Smith, Douglas L.

Report Date : SEP 1967

Pagination or Media Count : 139

Abstract : The DART is a transducer that converts a two dimensional angular rate vector into a phase and amplitude modulated sinusoidal voltage. The DART output statistics indicate that a valid model for the output is the signal plus additive noise that is independent of the signal, Gaussian, and white in a frequency band centered on the signal. A zero-suppression filter as well as least-mean-square error linear and nonlinear filters are designed and tested. The best filtering technique applied to the output of a particular model of the DART, decreased the lowest rate detected from 21 degrees/second to 0.002 degrees/second. (Author)

Descriptors :   (*DETECTORS, ROTATION), TRANSDUCERS, DEMODULATORS, POWER SUPPLIES, STATISTICAL ANALYSIS, SIGNALS, NOISE, ELECTRIC FILTERS, MATHEMATICAL MODELS, MEASUREMENT, THESES.

Subject Categories : Electrical and Electronic Equipment
      Test Facilities, Equipment and Methods

Distribution Statement : APPROVED FOR PUBLIC RELEASE