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US 10,868,609 B1Granted
Diversity polarization modulation
AssigneeEagle Technology, LLC
InventorsPhilip Kossin, Brett Pigon
Life of this patent
Estimating the term…
Abstract
A method includes transmitting a digital code from a transmitter to a receiver. Information is transmitted via electromagnetic waves from the transmitter to the receiver. The transmission of the information includes transmitting a first portion of the information using electromagnetic waves with a first polarization in response to a first value of the digital code, and transmitting a second portion of the information using electromagnetic waves of a second polarization in response to a second value of the digital code. The first information may include a first navigational code and the second information may include a second navigational code.
Claims18
A method comprising:
- transmitting a digital code that comprises a pseudo-random code from a transmitter to a receiver;
- transmitting information including a first navigational code and a second navigational code via electromagnetic waves from the transmitter to the receiver, wherein transmitting the information comprises:
- transmitting the first navigational code using electromagnetic waves with a first polarization in response to a first value of the digital code;
- and
- transmitting the second navigational code using electromagnetic waves of a second polarization in response to a second value of the digital code,
- wherein the transmitting the first navigational code and the transmitting the second navigational code result in polarization hopping of the first polarization and the second polarization between different types of polarization over time according to a random pattern of the pseudo-random code.
3 more elements
A method comprising:
- receiving, at a receiver from a transmitter, a digital code comprising a pseudo-random code;
- receiving, at the receiver, first electromagnetic waves;
- decoding, using correlation, a first navigational code from the first electromagnetic waves corresponding to a first polarization in response to a first value of the digital code, wherein the first polarization includes polarization hopping between different types of the first polarization over time according to a random pattern of the pseudo-random code, and the decoding includes determining the different types of the first polarization using the pseudo-random code;
- receiving, at the receiver, second electromagnetic waves;
- and
- decoding, using correlation, a second navigational code from the second electromagnetic waves corresponding to a second polarization in response to a second value of the digital code, wherein the second polarization includes polarization hopping between different types of second polarization over time according to the random pattern of the pseudo-random code, and the decoding the second navigational code includes determining the different types of second polarization using the pseudo-random code.
3 more elements
A method comprising
- encoding a first signal of a first channel of a transmitter with a first navigational code;
- encoding a second signal of the first channel of the transmitter with a second navigational code;
- encoding a first signal of a second channel of the transmitter with the first navigational code;
- encoding a second signal of the second channel of the transmitter with the second navigational code;
- phase shifting the first signal of the first channel by 90 degrees relative to the first signal of the second channel;
- phase shifting the second signal of the second channel by 90 degrees relative to the second signal of the first channel;
- combining the first signal of the first channel with the second signal of the first channel to generate a first channel combined signal;
- combining the first signal of the second channel with the second signal of the second channel to generate a second channel combined signal;
- and
- transmitting the first channel combined signal and the second channel combined signal such that the first signal is transmitted with right hand elliptical polarization and the second signal is transmitted with left hand elliptical polarization.
7 more elements
Dependencies are inferred from the claim text.