Comprehensive Error Calibration Algorithm based on Non-uniform Dual Circular Array
Abstract
In this paper, a comprehensive error calibration method is proposed for non-uniform dual circular arrays in the presence of gain-phase errors, position errors and mutual coupling errors. By rotating the platform, only one auxiliary calibration source is used to construct three time-sharing calibration sources. According to the orthogonality principle of signal subspace and noise subspace, the cost function is constructed, and the coefficients of gain-phase errors, position errors and mutual coupling errors are obtained through iteration. When the mutual coupling error is estimated, the algorithm makes full use of the structural characteristics of the non-uniform dual circular array. The algorithm does not require any additional auxiliary array element, the principle is simple and easy to implement. Simulation results show that the proposed algorithm can effectively calibrate the comprehensive error of non-uniform dual circular array.
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Index Terms
- Comprehensive Error Calibration Algorithm based on Non-uniform Dual Circular Array
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Published In
November 2018
177 pages
ISBN:9781450366052
DOI:10.1145/3297067
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Published: 28 November 2018
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SPML '18
SPML '18: 2018 International Conference on Signal Processing and Machine Learning
November 28 - 30, 2018
Shanghai, China
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