DOA Tracking of Two-Dimensional Coherent Distribution Source Based on Fast Approximated Power Iteration

Table 1

Pseudocode of the FAPI method.

Input: , which is N snapshots of receive vectors of URA.; Output: W(t), which is the signal subspace of the covariance matrix of X(t).; Initialize: .
	Cost
1.	MKq
2.	q^2
3.	MK
4.	q
5.	1
6.	1
7.	2q
8.	2q^2
9.	2q^2
10.	MKq + MK
11.	MKq