Abstract:

A five dimensional parameter joint estimation method for near field sources was proposed based on cross array. The method adopts centralsymmetric cross array, each array consists of orthogonal dipolepairs with the same axis direction. The dipolepairs measure the xaxis and yaxis electricfield components of the nearfield signals. Six matrixes pencils can be constructed by receiving polarized array data. The range, elevation, azimuth and polarization parameters of the signal sources can be jointly estimated by generalized eigenvalue of the matrix pencil decomposition. The proposed method does not require any spectral peak search, does not construct highdimensional cumulant matrix, and has simple parameter pairing. It can be applied to additive Gaussian noise environment. The performance of the method is verified by computer simulation.

Key words: information processing technology, polarization, fourorder cumulant, elevation estimate, azimuth estimate, range estimate