Reconfigurable correlator for a navigation system

A method comprising:

• selecting, for each of the plurality of correlators, a code from a plurality of provided codes at a first set of associated multiplexers;
• selecting, for each of a subset of the plurality of correlators, a carrier from a plurality of provided carriers at a first set of associated multiplexers;
• and
• combining, for each of the subset of the plurality of correlators, the selected carrier and the selected code to provide a replica signal for the correlator.

A method comprising:

• generating an early global navigation satellite system (GNSS) replica code, a prompt GNSS replica code generated as a delayed version of the early GNSS replica code, a late GNSS replica code generated as a first delayed version of the prompt GNSS replica code, and a flanking GNSS replica code generated as a second delayed version of prompt GNSS replica code having a delay greater than that of the late GNSS replica code;
• generating a first carrier signal having a first frequency;
• generating an early minus late code representing a difference between the early GNSS replica code and the late GNSS replica code;
• selecting the early GNSS replica code at a first multiplexer receiving at least the early GNSS replica code and the prompt GNSS code as inputs;
• selecting the prompt GNSS replica code at a second multiplexer receiving at least the prompt GNSS replica code and the early minus late code as inputs;
• selecting the late GNSS replica code at a third multiplexer receiving at least the late GNSS replica code, and the flanking GNSS replica code as inputs;
• and
• combining each of the early GNSS replica code, the prompt GNSS replica code, and the late GNSS replica code with the first carrier signal to provide early, prompt, and late replica signals at respective first, second, and third correlators.