公开(公告)号：US20240361466A1

公开(公告)日：2024-10-31

申请号：US18308095

申请日：2023-04-27

Applicant: BAE SYSTEMS Information and Electronic Systems Integration Inc.

Inventor： John Jay Weger

IPC: G01S19/13 ,  G01S19/07

CPC classification number: G01S19/13 ,  G01S19/07

Abstract: A Global Positioning System (GPS) digital antenna controller is provided, comprising antenna electronics, a code generator, and an interface. The antenna electronics can be configured to receive a GPS signal. The code generator can be configured to generate a pilot code signal that is synchronized to the DAE local clock reference. The interface can be configured to send the GPS signal and the code signal to a GPS receiver. A system may comprise the GPS digital antenna controller and GPS receiver. The GPS receiver can comprise a second code generator and a processor configured to resolve a timing difference based on the pilot code signal and a second code signal of the second code generator. The controller may be remote from the receiver. The interface may comprise an asynchronous data interface (e.g., Ethernet, USB, Infiniband, or Firewire). To resolve the timing difference may involve GPS code and carrier tracking.

公开(公告)号：US20250004140A1

公开(公告)日：2025-01-02

申请号：US18331491

申请日：2023-06-27

Applicant: BAE SYSTEMS Information and Electronic Systems Integration Inc.

Inventor： John Jay Weger

IPC: G01S19/01 ,  H01Q3/34

Abstract: Techniques for satellite signal authentication. In an example, a Global Positioning System (GPS) or global navigation satellite system (GNSS) includes antenna electronics, a processor, and a GPS or GNSS receiver. The antenna electronics is configured to provide, to the GPS or GNSS receiver, signals, wherein the signals comprise GPS or GNSS satellite signals received from a set of GPS or GNSS satellites and/or one or more falsified signals, such as spoofer signals (falsified). The processor is configured to determine, based on an expected location of a respective GPS or GNSS satellite of the set of GPS or GNSS satellites, an expected gain or expected power for a respective signal of the signals. The GPS or GNSS receiver is configured to measure a power of the respective signal, compare the measured power to the expected gain or expected power, and determine whether the respective signal is falsified based on the comparison.