Multi-dimensional sensor array information source direction finding method based on degraded space ARMA model

The invention relates to a multi-dimensional sensor array information source direction finding method based on a degraded spatial ARMA model, and belongs to two-dimensional information source direction finding based on a multi-dimensional array in array signal processing. The method comprises calculation of a three-dimensional array model, information source phase difference estimation of any ULA in a multi-dimensional array, a ULA classification criterion in the multi-dimensional array, an information source phase difference (or angle) pairing scheme in the multi-dimensional array, and an information source elevation angle and an information source azimuth angle in the multi-dimensional array. The method has the advantages that any ULA in the multi-dimensional array can be processed, and the two-dimensional information source direction finding method can be matched with and give play to the advantages of the multi-dimensional array ULA and data richness of the multi-dimensional array ULA; a ULA combination c