Apparatuses and methods for measuring position and velocity

A System-on-Chip (SoC) comprising:

• a Global Navigation Satellite System (GNSS) receiver configured to:
• receive GNSS signals including a line of sight (LOS) signal and at least one multipath signal,
• receive, based on previously received GNSS signals, predicted code phase information and predicted Doppler information, and
• operate on the GNSS signals within a search space to produce measurements of the GNSS signals across a code phase domain and a Doppler domain of the search space;
• and
• a navigation filter configured to:
• define, based on the predicted code phase information and the predicted Doppler information, a LOS region of the search space, the search space including a first set of code phases and Doppler frequencies, the LOS region including a second set of code phases and Doppler frequencies, the second set of code phases and Doppler frequencies being smaller than the first set of code phases and Doppler frequencies,
• operate on the produced measurements within the LOS region of the search space to select measurements associated with the LOS signal, and
• operate on the selected measurements to produce position or velocity information associated with the LOS signal.

A Global Navigation Satellite System (GNSS) device configured to:

• receive GNSS signals including a line of sight (LOS) signal and at least one multipath signal;
• generate, based on previously received GNSS signals, predicted code phase information and predicted Doppler information;
• define, based on the predicted code phase information and the predicted Doppler information, a LOS region of a search space, the search space having dimensions in a code phase domain and in a Doppler domain, the search space including a first set of code phases and Doppler frequencies, the LOS region including a second set of code phases and Doppler frequencies, the second set of code phases and Doppler frequencies being smaller than the first set of code phases and Doppler frequencies;
• operate on the GNSS signals within the search space to produce measurements of the GNSS signals across the code phase domain and the Doppler domain of the search space;
• operate on the produced measurements within the LOS region of the search space to select measurements associated with the LOS signal;
• and
• operate on the selected measurements to produce position and/or velocity information associated with the LOS signal.