Abstract: A method for detecting Global Navigation Satellite System (GNSS) spoofing is provided. The method includes receiving signals at a GNSS receiver; processing the signals to determine a calculated position; searching a list of distance measuring equipment (DME) transponders around the calculated position to select a set of DME transponders; sorting the set of DME transponders based on a respective distance between the calculated position and a respective position of each of the DME transponders; selecting a subset of the DME transponders based on the sorting; for each of the subset of the DME transponders, incrementing a counter when a difference between a real slant range, determined by communicating with the DME transponder, and an expected slant range based on height, position and known location of the DME transponder, exceeds a first threshold; and when the counter is greater than a second threshold, indicating that the position is spoofed.

Abstract: Disclosed are methods, systems, and non-transitory computer-readable medium for vehicle information reporting of a vehicle using Global Navigation Satellite System (GNSS) receivers and a satellite communication transceiver for a satellite system. For instance, the method may include obtaining GNSS data, the obtained GNSS data being received by the GNSS receivers; storing a portion of the obtained GNSS data in a memory as historical position information; receiving inputs from timers, sensors, or a user interface of the vehicle; determining whether to transmit a message based on rules applied to the obtained GNSS data and the received inputs; in response to determining to transmit the message, compiling the message based on a message content rule, the message including a historical position data message based on the message content rule and the historical position information; and transmitting the message via the satellite communication transceiver to a satellite of the satellite system.

Abstract: Disclosed are methods, systems, and non-transitory computer-readable medium for vehicle information reporting of a vehicle using Global Navigation Satellite System (GNSS) receivers and a satellite communication transceiver for a satellite system.

Abstract: Display systems and methods for generating a display providing runway illusion alleviation are disclosed herein. An exemplary method for generating a display includes the steps of determining a position of the aircraft in a vicinity of an approaching runway, retrieving terrain data regarding the vicinity of the approaching runway and retrieving runway data regarding the approaching runway, determining the existence of a runway illusion effect by analyzing the terrain data and the runway data. The method further includes the steps of rendering graphical terrain imagery and rendering graphical runway imagery on the flight display in accordance with the terrain data and the runway data and rendering a graphical runway illusion alleviation object on the flight display.

Abstract: Display systems and methods for generating a display providing runway illusion alleviation are disclosed herein. An exemplary method for generating a display includes the steps of determining a position of the aircraft in a vicinity of an approaching runway, retrieving terrain data regarding the vicinity of the approaching runway and retrieving runway data regarding the approaching runway, determining the existence of a runway illusion effect by analyzing the terrain data and the runway data. The method further includes the steps of rendering graphical terrain imagery and rendering graphical runway imagery on the flight display in accordance with the terrain data and the runway data and rendering a graphical runway illusion alleviation object on the flight display.