Title :
Direction finding experiments based on fourth order cumulants
Author :
Nickel, Ulrich R O
Author_Institution :
Dept. of Electron., PGAN-FHR, Wachtberg, Germany
Abstract :
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
Keywords :
Gaussian processes; array signal processing; direction-of-arrival estimation; higher order statistics; jamming; Gaussian sources; MUSIC methods; direction finding experiments; fourth order cumulants; higher order statistics; jammer suppression properties; jammer-alone covariance matrix; noise-like jammers; super-resolution; weighted HOS projection method; Covariance matrix; Higher order statistics; Jamming; Multiple signal classification; Nickel; Noise measurement; Phased arrays; Planar arrays; Radar; Signal resolution;
Conference_Titel :
Sensor Array and Multichannel Signal Processing Workshop. 2000. Proceedings of the 2000 IEEE
Conference_Location :
Cambridge, MA
Print_ISBN :
0-7803-6339-6
DOI :
10.1109/SAM.2000.878026
