Spatial signature estimation for uniform linear arrays with unknownreceiver gains and phases

  • Authors:
  • D. Astely;A.L. Swindlehurst;B. Ottersten

  • Affiliations:
  • Dept. of Signal Sensor and Syst., R. Inst. of Technol., Stockholm;-;-

  • Venue:
  • IEEE Transactions on Signal Processing
  • Year:
  • 1999

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Abstract

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