Systems and methods for selecting accurate runway records for use in cockpit display systems

A method for selecting a runway record for a target runway, comprising:

• at a computer system onboard an aircraft, receiving an ILS signal;
• processing the ILS signal to determine when the ILS signal is substantially zero;
• and
• when the ILS signal is substantially zero,
• identify an aiming point on a target runway;
• receiving from one or more databases, a plurality of runway records including corresponding runway thresholds;
• and
• selecting a most accurate runway record from the plurality of runway records based, at least in part, on which of the corresponding runway thresholds deviates least from the aiming point.

An aircraft, comprising:

• a transceiver for receiving an ILS signal;
• and
• a computer system operationally coupled to the transceiver, the computer system configured to:
• process the ILS signal to determine when the ILS signal is substantially zero;
• and
• when the ILS signal is substantially zero,
• identify an aiming point on the target runway;
• receive, from one or more databases, a plurality of runway records including corresponding runway thresholds;
• and
• select a most accurate runway record from the plurality of runway records based, at least in part, on which of the corresponding runway thresholds deviates least from the aiming point.