Method and system for measuring receiver mixer IQ mismatch
First Claim
Patent Images
1. A method for measuring receiver mixer IQ mismatch in a transceiver, the method comprising:
- providing a training signal for a receiver mixer, the training signal having periodic, uncorrelated I and Q signals;
determining a phase mismatch in the receiver mixer from IQ correlation over a unit period; and
determining a gain mismatch in the receiver mixer from a power estimate of both I and Q signals for the unit period.
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Abstract
Aspects for measuring receiver mixer IQ mismatch in a transceiver are described. The measuring includes providing a training signal for a receiver mixer, the training signal having periodic, uncorrelated I and Q signals. A phase mismatch in the receiver mixer is determined from IQ correlation over a unit period. A gain mismatch in the receiver mixer is determined from a power estimate of both I and Q signal for the unit period.
57 Citations
18 Claims
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1. A method for measuring receiver mixer IQ mismatch in a transceiver, the method comprising:
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providing a training signal for a receiver mixer, the training signal having periodic, uncorrelated I and Q signals; determining a phase mismatch in the receiver mixer from IQ correlation over a unit period; and determining a gain mismatch in the receiver mixer from a power estimate of both I and Q signals for the unit period. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A system for estimation of receiver mixer IQ mismatch during signal modulation, the system comprising
a transceiver, the transceiver including a transmitter and a receiver, the transmitter providing a training signal for a receiver mixer, the training signal having periodic, uncorrelated I and Q signals; - and
a processor coupled to the transceiver, the processor determining a phase mismatch in the receiver mixer from tO correlation over a unit period, and determining a gain mismatch in the receiver mixer from a power estimate of both I and Q signals for the unit period. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A method for measuring receiver mixer IQ mismatch in a transceiver, the method comprising:
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utilizing a transmitter to provide a training signal for a receiver mixer, the training signal having periodic, uncorrelated I and Q signals; and utilizing a processor to determine a phase mismatch in the receiver mixer from IQ correlation over a unit period, and to determine a gain mismatch in the receiver mixer from a power estimate of both I and Q signals for the unit period. - View Dependent Claims (14, 15, 16, 17, 18)
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Specification