Abstract

A 6-bit sensor processing method based on a digital, memory-aided phase-locked loop (MAPLL) and BCD rate multiplier clock synchronizing, provides building blocks for low-cost Omega receivers. The method has been implemented in flight-test hardware to provide raw Omega phase data suitable for direct interface with a microcomputer navigation processor. Experimental results and simulation studies of airborne systems will be presented. This work has been supported by NASA Langley Research Center Grant NGR 36-009-017 for application to low-cost VLF methods for the general aviation pilot.

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