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Over-The-Air Identification of Coupled Nonlinear Distortion in a MIMO Radar | IEEE Conference Publication | IEEE Xplore

Over-The-Air Identification of Coupled Nonlinear Distortion in a MIMO Radar


Abstract:

Compensation for nonlinear distortion caused by power amplifiers being driven into compression is a field that has been extensively explored by a number of authors. More ...Show More

Abstract:

Compensation for nonlinear distortion caused by power amplifiers being driven into compression is a field that has been extensively explored by a number of authors. More complex models describing the coupled nonlinear distortion that can occur in an active antenna array also exist. To identify these models most authors assume that the output of each power amplifier can be measured directly. For a system with many antennas over-the-air identification might be favorable. The problem of identifying a system describing the joint effects of coupled nonlinear distortion over-the-air has been solved by other authors assuming model or setup simplifications. To tackle the problem with a more accurate model, an algorithm for identifying parameters of a Volterra series model describing coupled non-linear distortion in a digital radar is explored and illustrated with simulated data.
Date of Conference: 20-23 June 2022
Date Added to IEEE Xplore: 22 July 2022
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Conference Location: Trondheim, Norway

References

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