Patent ID: 8331888

Claim:
A method, comprising: maintaining, in a memory module coupled to a reference system, a set of programmable reference signal parameters, the set of programmable reference signal parameters including a reference signal frequency and a specific antenna band designation; generating, in the reference system, a reference signal from the set of programmable reference signal parameters; transmitting the reference signal from the reference system to an aircraft platform according to: (1) a transmission schedule stored at the reference system and (2) the specific antenna band designation; receiving, at the reference system, an updated set of programmable reference signal parameters from the aircraft platform; generating, in the reference system, a modified reference signal at the reference system based on the received updated set of programmable reference signal parameters, wherein the modified reference signal describes a positioning of the aircraft platform with a greater accuracy than the reference signal; and transmitting the modified reference signal from the reference system to the aircraft platform.