Joint DOD and DOA Estimation of Bistatic MIMO Radar for Coprime Array Based on Array Elements Interpolation

Algorithm 1

Array elements interpolation algorithm.

	Input: receive signal: x(t) = As(t)+n(t), t = 1,2, …, L;
	Output: DODs and DOAs: ;
	Step:
(1)	estimate covariance matrix based on continuous virtual array as in (12);
(2)	build the selection matrix of the transmit array as in (14) and the selection matrix of receive array as in (15);
(3)	rebuild a new Toeplitz matrix as in (17);
(4)	form a spatial smoothing matrix as in (18);
(5)	utilize the RD-MUSIC algorithm, to estimate DODs and DOAs ;