NASA NTRS · 19890000277
Counterrotator And Correlator For GPS Receivers
Abstract
Accurate, all-digital, high-speed processor comprising correlator and down-converter developed for receivers in Global Positioning System (GPS). Processor reduces roundoff and commensurability errors to extremely small values. Use of digital chip and phase advancers provides outstanding control and accuracy in phase and feedback. Great flexibility imparted by provision for arbitrary starting time and integration length. Minimum-bit design requires minimum number of logical elements, thereby reducing size, power, and cost.
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Thomas, J. Brooks, Srinivasan, Jeffrey M., Meehan, Thomas K.. 1989-06-01. Counterrotator And Correlator For GPS Receivers. https://ntrs.nasa.gov/citations/19890000277
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