Efficient and Accurate Optimal Linear Phase FIR Filter Design Using Opposition-Based Harmony Search Algorithm

Table 11

Statistical parameters of FIR LP filters for different algorithms.

Algorithm	FIR LP filter of order 20
	Pass band ripple (normalized)				Stop band attenuation (dB)
	Maximum	Mean	Variance	Standard deviation	Maximum	Mean	Variance	Standard deviation
PM	0.0664	0.06616	3.84𝑒−8	0.000196	23.54	23.572	0.000696	0.026382
RGA	0.1142	0.11224	5.11𝑒−6	0.002261	26.11	33.056	20.5999	4.538712
PSO	0.1230	0.11714	1.55𝑒−5	0.003939	28.03	35.588	18.6021	4.313015
DE	0.1360	0.12152	6.56𝑒−5	0.008099	29.53	36.784	13.30738	3.647929
OHS	0.1400	0.12195	17.3𝑒−5	0.013171	35.16	37.014	1.804384	1.343274