摘要:
Systems and methods for advising a flight crew member that an enhanced ground proximity warning system (EGPWS), for example, may continue to provide terrain alerts, cautions, warnings, or the like because an intended landing site for the aircraft is not recognized within a database of airports. An unknown airport advisory is generated and broadcast after the aircraft is in a landing configuration, when the aircraft is greater than a threshold distance from the nearest landing site in the database, but before the terrain alerts are broadcast. The pilot may actuate a “terrain inhibit” selection device after receiving the advisory. The inhibit device may deactivate or mute subsequent alerts generated by the EGPWS during that particular landing sequence.
摘要:
An apparatus and method for automatically adjusting for data protocol discrepancies. The apparatus includes a unit that receives a signal from GPS receiver. The signal was formatted according to a transmission protocol. The unit includes a first component that estimates User Equivalent Range Error (UERE) based on the received signal and adjusting at least one value of the received signal based on the estimated UERE and one or more predefined scale factor and a second component that uses the adjusted at least one value.
摘要:
The present invention includes a system, method and computer program product for reducing nuisance warnings during low altitude flight conditions and in the presence of low position uncertainty. The system includes a first component that determines whether the aircraft is in a low altitude flight condition and a second component that determines the position, positional uncertainty, and the heading. The system also includes a third component that attenuates and refines the look-ahead envelope in accord with the determined condition of flight and positional uncertainty.
摘要:
Systems and methods for alerting for potential tailstrike during landing. A processing device located onboard an aircraft determines whether the aircraft is in a landing operational mode. If the aircraft is determined within the landing operational mode, the processing device determines whether aircraft speed is less than a previously defined threshold speed and generates an alert signal if it is determined that the aircraft's speed is less than the previously defined threshold speed. An output device located onboard the aircraft, outputs an alert based on the generated alert signal.
摘要:
Systems and methods for monitoring Required Navigational Performance (RNP) Procedures and reducing nuisance Enhanced Ground Proximity Warning System warnings including a processor, a memory with RNP instructions and data, and a communication device. The processor accesses the RNP data and instructions from the memory, and uses the communication device to obtain flight information from a Flight Management System of an aircraft. When the processor determines that the aircraft is in RNP space, the processor projects an RNP envelope and modifies a warning envelope of an EGPWS to coincide with the RNP envelope if the EGPWS warning envelope extends farther than the RNP envelope.
摘要:
Systems and methods for controlling activation of a look-ahead function of a terrain alert and warning system. The system receives rate of climb and aircraft speed information, compares the rate of climb and aircraft speed information to a predefined threshold, and deactivates a look-ahead function based on the comparison.
摘要:
Methods, systems, and computer program products for using airport information based on the flying environment. In one embodiment, a method of using airport information based on the flying environment includes determining height, ground speed, and if a helicopter is taking off based on determined height, determined ground speed, a takeoff height value and a takeoff speed value. In one embodiment, the helicopter is determined to be taking off when the determined height is less than the takeoff height value and when the determined ground speed is less than the takeoff speed value.
摘要:
A method for locating aircraft with respect to airport runways and taxiways, generating and annunciating situational awareness advisories as a function of aircraft state parameters relative to a determination of the aircraft location.
摘要:
A method for locating aircraft with respect to airport runways and taxiways, generating and annunciating situational awareness advisories as a function of aircraft state parameters relative to a determination of the aircraft location.
摘要:
A system, method, and computer program product for alerting an aircraft flight crew of an inconsistency during an instrument landing system (ILS) approach to a selected runway. The system includes a component configured to receive glideslope and localizer signals, and a component configured to determine aircraft approach angle to runway end. Also, a component configured to alert the aircraft flight crew of an approach inconsistency, if the determined aircraft approach angle to runway end is less than a threshold angular value and one or more parameters based on aircraft position and the received glideslope and localizer signals are met. The component configured to determine aircraft approach angle to runway end determines the aircraft approach angle to runway end based on aircraft geometric altitude, a vertical figure of merit, a horizontal figure of merit, runway elevation, and aircraft distance to runway threshold.