Position location using ghost canceling reference television signals
AssigneeRosum Corporation
InventorsMatthew Rabinowitz, James J. Soilker JR.
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Abstract
A method, apparatus, and computer-readable media for determining the position of a user terminal comprises generating a correlation reference signal based on known characteristics of a chirp-type signal present in a broadcast analog television signal; receiving, at the user terminal, a broadcast analog television signal comprising the chirp-type signal; and correlating the broadcast analog television signal with the correlation reference signal, thereby producing a pseudorange; and wherein the location of the user terminal is determined based on the pseudorange and a location of the transmitter of the broadcast analog television signal.
Claims1
A method for determining the position of a user terminal, comprising:
- generating a correlation reference signal based on known characteristics of a broadcast analog television ghost canceling reference signal;
- receiving, at the user terminal, a broadcast analog television signal comprising the ghost canceling reference signal;
- and
- correlating the broadcast analog television signal with the correlation reference signal, thereby producing a pseudorange;
- and wherein
- the location of the user terminal is determined based on the pseudorange and a location of the transmitter of the broadcast analog television signal.
Dependencies are inferred from the claim text.