Table 14.

Filter type.

Filter	Articles
FIR (26)	[39, 40, 42, 77, 80, 85, 86, 95, 96, 102, 108–111, 118–122, 127, 131, 140, 141, 145, 169, 171]
HOLS (1)	[124]
IIR (19)	[58, 78, 84, 90, 101, 112–114, 123, 125, 134–139, 172]
Not reported (68)	[26, 37, 38, 41, 66, 79, 81–83, 87–89, 91–94, 97–100, 103–107, 115–117, 126, 128–130, 132, 133, 142–144, 146–168, 170, 173–179]