How Much More DOA Information In Higher-order Statistics ?

We consider the use of 2nd-and 4th-order cumulants for estimating the direction-of-arrival (DOAs) in narrow band array processing. The Fisher information about the DOAs contained in several cumulant statistics is computed. Numerical evaluation of the related Cram er-Rao bound is then used to point out, in this limited study, some advantages and drawbacks of using higher-order statistics.

[1]  Benjamin Friedlander,et al.  Direction finding algorithms based on high-order statistics , 1991, IEEE Trans. Signal Process..

[2]  Eric Moulines,et al.  Asymptotic performance analysis of direction-finding algorithms based on fourth-order cumulants , 1995, IEEE Trans. Signal Process..

[3]  Chrysostomos L. Nikias,et al.  Harmonic decomposition methods in cumulant domains (array processing) , 1988, ICASSP-88., International Conference on Acoustics, Speech, and Signal Processing.