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Spatial signature estimation for uniform linear arrays with unknown receiver gains and phases

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3 Author(s)
Astely, D. ; Dept. of Signal Sensor and Syst., R. Inst. of Technol., Stockholm, Sweden ; Swindlehurst, A.L. ; Ottersten, B.

The problem of spatial signature estimation using a uniform linear array (ULA) with unknown receiver gain and phase responses is studied. Sufficient conditions for identifying the spatial signatures are derived, and a closed-form ESPRIT-like estimator is proposed. The performance of the method is investigated by means of simulations and on experimental data collected with an antenna array in a suburban environment. The results show that the absence of receiver calibration is not critical for uplink signal waveform estimation using a plane wave model

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Signal Processing, IEEE Transactions on  (Volume:47 ,  Issue: 8 )