Arrival direction estimation method combining matrix pencil and root extraction MUSIC
A direction-of-arrival estimation and matrix beam technology, which can be used in direction-determining orientators, radio wave measurement systems, measurement devices, etc., can solve the problem of low spatial angular resolution
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[0131] Such as image 3 As shown, in this embodiment, the antenna array is composed of M×N uniformly distributed array elements at equal distances. Based on the antenna array, the present invention provides a method for estimating the direction of arrival of a matrix beam combined with root-finding MUSIC, such as figure 1 As shown, the DOA estimation method includes the following steps:
[0132] S1, construct block Hankel matrix (as figure 2 shown), and further obtain the autocorrelation data matrix, obtain the noise subspace and signal subspace by singular value decomposition, and construct the matrix bundle equation;
[0133] Further, the step S1 specifically includes:
[0134] S11. According to the matrix sequence {D 0 (t),D 1 (t)...,D M-1 (t)} and the noise-free signal sequence {z (m,0) (t),z (m,1) (t),...,z (m,N-1) (t)} to process and construct the block Hankel matrix; as figure 2 Shown is a schematic diagram of the structure of the block Hankel matrix in the p...
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