Title :
Performance analysis of MVDR algorithm in the presence of amplitude and phase errors
Author :
Su, Weimin ; Gu, Hong ; Ni, JinLin ; Liu, GuoSui
Author_Institution :
Electro-Photo Inst., Nanjing Univ. of Sci. & Technol., China
fDate :
12/1/2001 12:00:00 AM
Abstract :
The sensitivity of spectrum estimation approach, the minimum variance distortionless response (MVDR) spectrum estimator, to random perturbations in the amplitude and phase of array sensors 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 the computer simulation. These expressions are then used to study the characteristics of the estimator
Keywords :
array signal processing; direction-of-arrival estimation; error analysis; spectral analysis; MVDR algorithm; amplitude error; array sensors; array signal processing; computer simulation; mean; minimum variance distortionless response; performance analysis; phase error; random perturbations; spatial spectrum variance; spectrum estimation; Amplitude estimation; Analysis of variance; Computer errors; Performance analysis; Phase distortion; Phase estimation; Phased arrays; Sensor arrays; Sensor phenomena and characterization; Spectral analysis;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
