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

Table 12

Statistical parameters of FIR HP filters for different algorithms.

Algorithm	FIR HP filter of order 20
	Pass band ripple (normalized)				Stop band attenuation (dB)
	Maximum	Mean	Variance	Standard deviation	Maximum	Mean	Variance	Standard deviation
PM	0.0663	0.06612	2.16𝑒−8	0.000147	23.55	23.560	0.00012	0.010954
RGA	0.1170	0.11262	6.64𝑒−6	0.002577	25.25	32.110	20.59505	4.538177
PSO	0.1249	0.11820	3.12𝑒−5	0.005590	28.1	35.396	16.09082	4.011337
DE	0.1360	0.12060	0.000137	0.011693	29.16	37.058	18.3217	4.280385
OHS	0.1400	0.12228	0.000191	0.013819	33.86	35.728	1.474056	1.214107