Direction finding experiments based on fourth order cumulants
Ulrich R. O. Nickel · 2002
This paper considers high resolution direction finding in the presence of noise-like jammers for the case where the jammer-alone covariance matrix cannot be measured. We apply two versions of fourth order cumulant based higher order statistics (HOS) MUSIC methods to real data, discuss the super-resolution and the jammer suppression properties, and introduce a weighted HOS projection method which overcomes the deficiencies of standard HOS MUSIC with respect to remainders of Gaussian sources.