Technique of Direction Finding by Circle Antenna Array Based on MUSIC Algorithm
Dianfa Ping · Journal of Projectiles.Rockets.Missiles and Guidance · 2007
MUSIC algorithm is the basis of the method of direction finding with space spectrum estimation.The method of direction finding is through the responses of antenna array to the signals which to be measured are composed to be a matrix.From its eigenvalue,the character vectors corresponding to the signals and noise can be obtained.And the sub-space of the signals and noise can be expanded through them.With the quadrature between the sub-space of the signals and noise,the AOA of the signals are obtained.This method of direction finding can overcome the questions in the common system of director finding by interferometer,which are the blur and the bland-section.It's a accurate and distinguishable method of director finding.