Double-difference

Double-difference

A data processing procedure by which the pseudo-range or carrier phase measurements made simultaneously by two GPS receivers are combined so that, for any measurement epoch, the observations from one receiver to two satellites are subtracted from each other (in a so-called "between-satellite single-difference") to remove that receiver's clock error (or bias).

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Part of Speech: noun
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Industry/Domain: Telecommunications
Category: GPS (global positioning system)
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