Gain and Phase Calibration Algorithm of Near-field Source Based on Instrumental Sensors

Mengyu NI; Hui CHEN; Song XIAO; Liuliu NI; Jiajia ZHANG

doi:10.11999/JEIT180032

Volume 40 Issue 10

Sep. 2018

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Article Navigation > Journal of Electronics & Information Technology > 2018 > 40(10): 2415-2422

Mengyu NI, Hui CHEN, Song XIAO, Liuliu NI, Jiajia ZHANG. Gain and Phase Calibration Algorithm of Near-field Source Based on Instrumental Sensors[J]. Journal of Electronics & Information Technology, 2018, 40(10): 2415-2422. doi: 10.11999/JEIT180032

Citation:

Mengyu NI, Hui CHEN, Song XIAO, Liuliu NI, Jiajia ZHANG. Gain and Phase Calibration Algorithm of Near-field Source Based on Instrumental Sensors[J]. Journal of Electronics & Information Technology, 2018, 40(10): 2415-2422. doi: 10.11999/JEIT180032

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Gain and Phase Calibration Algorithm of Near-field Source Based on Instrumental Sensors

doi: 10.11999/JEIT180032

Key Research Laboratory, Air Force Early Warning Academy, Wuhan 430019, China

Received Date: 2018-01-09
Rev Recd Date: 2018-06-06

Available Online: 2018-07-30

Publish Date: 2018-10-01

Abstract

Abstract

In order to solve the problem of near-field source localization and array gain-phase error calibration, a method of gain-phase error calibration is proposed based on uniform array symmetry. The distance parameter is separated by reconstructing the virtual array, and then the decoupling between azimuth and error is realized by transforming the steering vector of the virtual array. Through the transformation of the real array steering vector, the decoupling between the distance and the gain-phase error is realized, and the cascade estimation of the azimuth and distance of the near-field source and the gain-phase error coefficient of the array is achieved. The simulation results show that compared with the exist algorithms, the proposed algorithm has less computational complexity, more accurate azimuth and distance parameters estimation, and higher accuracy of gain and phase error calibration.
- Symmetrical array,
- Near-field,
- Instrumental sensors,
- Vector reconstruction,
- Gain and phase error calibration

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References(15)

References

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