Patent ID: 11899118
Assignee: SMARTSKY NETWORKS LLC
Field: Measurement (Instruments)
Classification: CPC G  H | IPC G  H

Claim 0:
1. A global positioning system (GPS) receiver comprising:
an antenna configured to receive GPS signals from GPS satellites;
a radio frequency (RF) front end configured to pre-process signals received by the antenna;
a demodulator/converter configured to perform demodulation and analog-to-digital conversion of output signals received from the RF front end;
a clock configured to provide a consistent clock signal;
a digital signal processor configured to receive the clock signal and make time and code measurements associated with determining a location of the GPS receiver based on the signals received by the antenna; and
an optimization module in communication with the digital signal processor, the optimization module being configured to identify reflected or indirect signals originating from one or more of the GPS satellites,
wherein the GPS receiver is configured to eliminate the reflected or indirect signals identified by the optimization module from the time and code measurements,
wherein the antenna is a directive antenna configured to form a null in a direction of the reflected or indirect signals, and
wherein the GPS receiver is disposed on an aircraft, and wherein the null is formed at a nadir relative to the aircraft.