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A Practical Simple Geometry and Gain/Phase Calibration Technique for Antenna Array Processing

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4 Author(s)
Boon Poh Ng ; Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore, Singapore ; Lie, Joni Polili ; Meng Hwa Er ; Aigang Feng

A calibration technique is proposed in this paper for an arbitrary array. This technique estimates the array sensor gain/phase and geometry with a set of simultaneous equations formed by using the MUSIC null spectrum property. Note that the technique does not use iterative calculation in estimating the array parameters and hence it has no convergent problem; however, it requires that n directions of arrival (DOAs) of signal sources to be known to calibrate the array which is perturbed n-dimensionally. The efficacy of the method is demonstrated by means of simulations and on experimental data collected with an antenna array operating in high-frequency radio band.

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Antennas and Propagation, IEEE Transactions on  (Volume:57 ,  Issue: 7 )