ADAPTIVE CODE GENERATOR FOR SATELLITE NAVIGATION RECEIVER

摘要

PROBLEM TO BE SOLVED: To improve generation of pseudo random codes in a GNSS receiver without requiring extra complexity or costs in the receiver, for a circuit in the receiver that generates various different pseudo random codes corresponding to navigation signals from different satellites in a GNSS (GNSS using a code diversity multi access method for reducing interference between satellites) and different GNSS.

SOLUTION: An adjustable code generator is configurable to generate a set of spread-spectrum code signals. Each spread-spectrum code signal has length corresponding to its cycle. The set of spread-spectrum code signals include first and second spread-spectrum code signals having different first and second length.

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