Georgia Tech Research Corporation

Shyam Kumar Devarakond

Abhijit Chatterjee

Shreyas Sen

Vishwanath Natarajan

The various embodiments of the present disclosure relate generally to power-conscious self-healing transceiver systems and methods. An embodiment of the present invention provides a method of power-consciously self-healing a transceiver system. The method comprises providing a transceiver device having a plurality of tuning elements configured to control a plurality of specifications of the device, determining initial values for the plurality of tuning elements, and performing a hardware-iterative gradient search to obtain values for each tuning element such that the plurality of specifications are within a tolerated range.

Power conscious self-healing transceiver systems and methods

An exemplary embodiment of the present invention provides a method of measuring I-Q mismatch in a system having a transmitter. The transmitter comprises an in-phase up-converter, a quadrature-phase up-converter, and a power detector. The method of measuring I-Q mismatch comprises measuring an in-phase transmit power at the power detector caused by transmitting an in-phase output signal to the in-phase up-converter, measuring a quadrature-phase transmit power at the power detector caused by transmitting a quadrature-phase output signal to the quadrature-phase up-converter, calculating a transmitter-gain-mismatch as a function of the in-phase transmit power and the quadrature-phase transmit power, measuring an I-Q transmit power at the power detector caused by simultaneously transmitting a gain-mismatch-compensated in-phase output signal to the in-phase up-converter and a gain-mismatch-compensated quadrature-phase output signal to the quadrature-phase up-converter, and calculating a transmitter-phase-mismatch as a function of the I-Q transmit power.

Systems and methods for measuring I-Q mismatch

The presently invention is directed to ways to measure distortion effects while allowing for the possibility of significant reduction in test cost. An exemplary embodiment of the present invention provides a method for amplifier distortion measurement including comparing a first amplitude response of an output signal from a power amplifier to a second amplitude response of a reference input signal to determine a set of Amplitude-to-Amplitude ('AM-AM') distortion values. Additionally, the method for amplifier distortion measurement includes equalizing the first amplitude response of the output signal to match the second amplitude response of the reference input signal based on the set of AM-AM distortion values and creating a difference signal based on a comparison of the equalized output signal to the reference input signal. Furthermore, the method for amplifier distortion measurement includes calculating a set of Amplitude-to-Phase ('AM-PM') distortion values based on a third amplitude response of the difference signal.

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Atlanta, GA, United States of America

Shyam Kumar Devarakond