A Sliding Window Data Compression Method for Spatial-Time DOA Estimation

Table 1

Main steps of the proposed method.

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(1) Calculate the time average function using (3)

(2) Perform sliding window data compression processing on x_i(t) and x_j(t) via (4) and rewrite (3) using (5)

(3) Construct the conjugate augmented vector g(τ)using (6)

(4) Construct the pseudodata matrix G using (8) and calculate its covariance matrix

(5) Vectorize the covariance matrix of G using (9)

(6) Perform spatial smoothing MUSIC method or sparse construction techniques on q_s

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