Table 5.

Rank of GRG with SNRs.

Grey relational coefficient	Grey relational coefficient	Grey relational grade	SNRs(dB)	Rank
µ	Ks
0.8558	0.5993	0.7276	− 2.7625	10
0.6829	0.4715	0.5772	− 4.7738	21
0.7730	0.5591	0.6660	− 3.5304	13
0.7438	0.4006	0.5722	− 4.8494	22
0.6535	0.3333	0.4934	− 6.1358	25
0.6466	0.6615	0.6541	− 3.6877	15
0.8224	0.5020	0.6622	− 3.5805	14
0.7058	0.3982	0.5520	− 5.1615	23
0.4810	0.3859	0.4335	− 7.2606	27
0.6586	0.7703	0.7145	− 2.9205	11
0.7326	1.0000	0.8663	− 1.2467	3
0.7107	0.8213	0.7660	− 2.3155	5
0.6317	0.8452	0.7384	− 2.6339	7
0.8327	0.6697	0.7512	− 2.4846	6
0.3333	0.6925	0.5129	− 5.7994	24
0.8558	0.3478	0.6018	− 4.4108	18
0.7053	0.9609	0.8331	− 1.5862	4
0.5279	0.3686	0.4483	− 6.9692	26
0.5806	0.8827	0.7316	− 2.7141	9
1.0000	0.8847	0.9424	− 0.5157	2
0.9676	0.9503	0.9589	− 0.3642	1
0.8990	0.5685	0.7338	− 2.6889	8
0.8495	0.4856	0.6676	− 3.5099	12
0.6521	0.6060	0.6290	− 4.0264	16
0.5565	0.6996	0.6280	− 4.0404	17
0.6448	0.5106	0.5777	− 4.7657	20
0.6282	0.5427	0.5855	− 4.6499	19