General Improvements of Heuristic Algorithms for Low Complexity DOA Estimation

Table 2

Comparison of computational complexity of original GA, PSO, and the improved GA and PSO for SML estimation.

	Original PSO	Original GA	Improved PSO	Improved GA
Population size	30	30	5	5
Average iteration times	128	148	22	25
Total calculating time (seconds)	0.45	0.51	0.031	0.039