Phase Error Criterion Based Adaptive Algorithm for Frequency Estimation

Table 1

The computational complexity and computational time.

Algorithm	Computational complexity		Phase evaluation	Computational time
	Multiplication	Addition
PEC	3L	2L	L	O (6L)
CDFE	4L	2L	—	O (6L)
MCPG	6L	3L	—	O (9L)
CPG	7L	4L	—	O (11L)
Regalia	10L	3L	—	O (13L)