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GNSS Positioning Basics

Core GNSS terminology, satellite signals, coordinate concepts, and embedded use cases.

This English edition retains the original diagrams and practical code or command examples.

Reference diagram 1

Reference diagram 2

Reference diagram 3

Reference diagram 4

Commands and examples

This article is a conceptual reference; review the hardware documentation for platform-specific details.

Practical notes

Validate pin multiplexing, clocks, power sequencing, kernel configuration, and device-tree bindings on the target board before drawing conclusions from a test result.