Optimization of transmit signal polarization of an adaptive polarization array (APA)
First Claim
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1. A method comprising:
- receiving a first wireless signal in a non-coherent manner at a receiver;
determining a received polarization state of the first wireless signal;
adjusting a transmit polarization state of a transmitter to an adjusted transmit polarization state based at least in part on the determined received polarization state; and
transmitting a second wireless signal at the adjusted transmit polarization state, wherein determining the received polarization state of the first wireless signal is based at least in part on a mean of a complex array of a vertical component of the first wireless signal and a complex array of a horizontal component of the first wireless signal.
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Abstract
An Adaptive Polarization Array (APA) Algorithm is described for analyzing a wireless signal transmitted by an entity to determine a received polarization of the received wireless signal at a non-coherent receiver. The APA Algorithm determines a transmit polarization state for a transmitter to transmit signals to the entity based in part on the determined received polarization. The transmitter is an arbitrary-polarized transmitter configured to transmit signals at any polarization.
16 Citations
17 Claims
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1. A method comprising:
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receiving a first wireless signal in a non-coherent manner at a receiver; determining a received polarization state of the first wireless signal; adjusting a transmit polarization state of a transmitter to an adjusted transmit polarization state based at least in part on the determined received polarization state; and transmitting a second wireless signal at the adjusted transmit polarization state, wherein determining the received polarization state of the first wireless signal is based at least in part on a mean of a complex array of a vertical component of the first wireless signal and a complex array of a horizontal component of the first wireless signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A system comprising:
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a receiver; an arbitrary-polarized transmitter having adjustable transmit polarization states; and control logic configured to; calculate a polarization state of a first dual-polarized signal received in a non-coherent manner at the receiver; and adjust a transmit polarization state of the arbitrary-polarized transmitter to transmit a second dual-polarized signal having a polarization at the calculated polarization state, wherein the transmit polarization state of the arbitrary-polarized transmitter is adjusted based at least in part on; applying a first normalized magnitude weight to a vertical transmitter channel of the arbitrary-polarized transmitter; applying a second normalized magnitude weight to a horizontal transmitter channel of the arbitrary-polarized transmitter; and applying the carrier phase shift to at least one of the vertical transmitter channel or the horizontal transmitter channel of the arbitrary-polarized transmitter. - View Dependent Claims (13, 14, 15)
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16. Control logic comprising:
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memory; one or more processors; at least one module stored on the memory and executable by the one or more processors, the at least one module configured to; estimate a received polarization state of a first wireless signal received in a non-coherent manner at a receiver from an entity; determine values associated with the estimated received polarization state; and apply the values to adjust an arbitrary-polarized transmitter to transmit a second wireless signal at the estimated received polarization state to the entity, wherein the values include weighting values and a carrier phase shift. - View Dependent Claims (17)
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Specification