Self Calibration of Mutual Coupling for Dual Uniform Circular Array

ZHANG Jiajia; CHEN Hui; LI Shuai; JI Zhengyan

doi:10.11999/JEIT161137

Volume 39 Issue 7

Jul. 2017

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Article Navigation > Journal of Electronics & Information Technology > 2017 > 39(7): 1539-1545

ZHANG Jiajia, CHEN Hui, LI Shuai, JI Zhengyan. Self Calibration of Mutual Coupling for Dual Uniform Circular Array[J]. Journal of Electronics & Information Technology, 2017, 39(7): 1539-1545. doi: 10.11999/JEIT161137

Citation:

ZHANG Jiajia, CHEN Hui, LI Shuai, JI Zhengyan. Self Calibration of Mutual Coupling for Dual Uniform Circular Array[J]. Journal of Electronics & Information Technology, 2017, 39(7): 1539-1545. doi: 10.11999/JEIT161137

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Self Calibration of Mutual Coupling for Dual Uniform Circular Array

doi: 10.11999/JEIT161137

Received Date: 2016-10-25
Rev Recd Date: 2017-02-26
Publish Date: 2017-07-19

Abstract

Abstract

Based on the dual uniform circular array, a self-calibration algorithm is proposed in the presence of mutual coupling, which can calibrate the mutual coupling in circular array and between two circular arrays at the same time. The algorithm utilizes the special mutual coupling matrix characteristic of dual uniform circular array to decouple angle information and mutual coupling coefficients. With less amount of calculation, the signal angle and the mutual coupling coefficients are estimated in turn. Finally, the cascade estimation is completed. The algorithm reduces the dimension of searching without any prior information about mutual coupling coefficient matrix and need not extra auxiliary source. So it can be easily implemented. Theory analysis and simulation results illustrate that the new algorithm has high precision and resolution, hence, it can effectively solve the problem of mutual coupling for the dual circular array.
- Dual circular array,
- Direction of Arrival (DOA) estimation,
- Mutual coupling,
- Self-calibration

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References(23)

References

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