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ASME Press Select Proceedings
International Conference on Instrumentation, Measurement, Circuits and Systems (ICIMCS 2011)
By
Chen Ming
Chen Ming
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ISBN:
9780791859902
No. of Pages:
1400
Publisher:
ASME Press
Publication date:
2011

The Capon beamformer usually uses the diagonal loading approach to improve the robustness. However, the main shortcoming of the diagonal loading approach is that there is no easy and reliable way of choosing the loading level. In this paper, we construct a cost function based on the noise and signal subspace, which is a convex problem, and can be solved by CVX program. Based on our cost function, we can choose the appropriate loading level easily. Using the appropriate loading level, the proposed robust capon beamformer can be efficiently computed at a comparable cost. Its excellent performance for SOI power estimation is demonstrated via a number of numerical examples.

Abstract
Keywords:
Introduction
Problem Formulation
Proposed Algorithm
Simulation
Conclusion
Acknowledgments
References
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