Robust Adaptive Beamforming Algorithm for Sparse Array Based on Covariance Matrix Reconstruction Technology

Algorithm 2

The second proposed algorithm steps.

	Step 1: estimate the DOA of the signals and reconstruct the direction vector by (3)
	Step 2: deduce the corresponding relationship between eigenvalues and power in (28)
	Step 3: find the corresponding relationship between power and direction vector
	Step 4: use (30) to reconstruct INCM and calculate the weight vector in (31)