A Two-Step Compressed Sensing Approach for Single-Snapshot DOA Estimation of Closely Spaced Signals

Table 1

Memory cost of the proposed matrix and Gaussian matrix.

M	N	Proposed matrix (bytes)	Gaussian matrix (bytes)
10	40	1128	3200
20	40	3000	6400
30	40	4520	9600
40	40	6600	12800