公开(公告)号：US20240094409A1

公开(公告)日：2024-03-21

申请号：US18220729

申请日：2023-07-11

Applicant: Apple Inc.

Inventor： Anjan Ramakrishnan ,  Aditya N Srivastava ,  Harsha Shirahatti ,  Mojtaba Bahrami

IPC: G01S19/30

CPC classification number: G01S19/30

Abstract: A receiver device includes a first antenna, a second antenna, a first receiver, a second receiver, and processing circuitry. The first receiver is coupled to the first antenna and configured to receive a first signal from a Global Navigation Satellite System (GNSS) satellite via the first antenna. The second receiver is coupled to the second antenna and configured to receive a second signal indicative of a secondary code boundary corresponding to a secondary code in the first signal from a second receiver device via the second antenna. The processing circuitry is configured to receive a primary code by removing the secondary code from the first signal based on the secondary code boundary, perform coherent integration on the primary code, and output a geographic position of the receiver device based on the coherent integration.