Performance analysis of MVDR algorithm in the presence of amplitude and phase errors

Performance analysis of MVDR algorithm in the presence of amplitude and phase errors

The sensitivity of a spectrum estimation approach, the minimum variance distortionless response spectrum estimator, to random perturbations in the amplitude and phase of array sensors and channels is studied. Analytical expressions for the mean and variance of the spatial spectrum are derived. The e...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Weimin Su, Hong Gu, Jinlin Ni, Guosui Liu
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Amplitude estimation
Analysis of variance
Computer errors
Computer simulation
Performance analysis
Phase distortion
Phase estimation
Phased arrays
Sensor arrays
Spectral analysis
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Beschreibung
Zusammenfassung:The sensitivity of a spectrum estimation approach, the minimum variance distortionless response spectrum estimator, to random perturbations in the amplitude and phase of array sensors and channels is studied. Analytical expressions for the mean and variance of the spatial spectrum are derived. The effects of the amplitude error on the spectrum is greater relatively than that of the phase error. Theoretical results are validated by computer simulation. These expressions are then used to study the characteristics of the estimator.
DOI:10.1109/ICR.2001.984833