Enhanced ldacs that uses doppler shifts in carrier signals for positioning and navigation
AssigneeSkystream LLC
InventorsIvica KOSTANIC, Edward PAULSEN, Daniel SCHWINN
Life of this patent
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Abstract
An enhanced L-band Digital Aeronautical Communications System (LDACS) includes a plurality of LDACS ground stations, each transmitting a respective carrier signal. An LDACS airborne station may be configured to communicate with the plurality of LDACS ground stations and determine position information based upon respective Doppler shifts in the plurality of carrier signals.
Claims29
An enhanced L-band Digital Aeronautical Communications System (LDACS) comprising:
- a plurality of LDACS ground stations, each transmitting a respective carrier signal;
- an LDACS airborne station configured to
- communicate with the plurality of LDACS ground stations, and
- determine position information based upon respective Doppler shifts in the plurality of carrier signals.
An L-band Digital Aeronautical Communications System (LDACS) airborne station for an enhanced LDACS comprising a plurality of LDACS ground stations, each transmitting a respective carrier signal;
- the LDACS airborne station comprising:
- radio frequency (RF) circuitry configured to communicate with the plurality of LDACS ground stations and receive transmissions of the carrier signals;
- and
- a controller coupled to the RF circuitry and configured to
- communicate with the plurality of LDACS ground stations, and
- determine position information based upon respective Doppler shifts in the plurality of carrier signals.
A method of operating an L-band Digital Aeronautical Communications System (LDACS) airborne station for an enhanced LDACS comprising a plurality of LDACS ground stations, each transmitting a respective carrier signal;
- the method comprising:
- operating radio frequency (RF) circuitry to communicate with the plurality of LDACS ground stations and receive transmissions of the carrier signals;
- and
- operating a controller coupled to the RF circuitry to
- communicate with the plurality of LDACS ground stations, and
- determine position information based upon respective Doppler shifts in the plurality of carrier signals.
Dependencies are inferred from the claim text.