Calculate S/N ratios and create an S/N response table. What is the confirmation formula?

Noise Factors L8 Outer Array ExFxG 1 N 2 1 2 1 1 N 2 S/N FXG 1 N 2 2 1 1 2 2 NN (db) 1 1 1 2 1 1 2 EXG G ExF 2 1 1 1 2 1 N 2 1 N N N N NNNN 1 2 2 1 2 1 1 2 F 1 1 N 2 2 1 2 NN A E 1 1 1 1 2 2 2 Control Fators L9 Inner Array A B D 1 2 3 4 1 1 1 1 Uml No. w N O 15.6 9.5 16.9 19.9 19.6 20.0 19.1 WN16 19.6 19.8 1 2 15.0 19.4 19.2 21.9 Nm 2 3 Nm 2 3 16.2 16.7 19.7 22.6 24.2 23.3 1 3 16.3 19.1 15.6 18.2 20.4 4 2 1 2 17.4 18.6 18.9 23.2 24.7 Nm 2 18.9 19.4 2 3 3 1 2 5 6 18.3 19.7 16.2 25.1 w N 18.6 16.3 21.0 25.6 14.7 21.4 19.6 27.5 22.5 25.3 24.7 2 3 1 20.0 19.8 7 3 1 3 18.4 18.6 Nm 2 3 8 19.1 15.6 m N 3 16.8 17.8 2 1 WN 12.0 14.2 15.0 NH 23.6 16.8 17.3 15.1 19.3 19.6 22.7 24.3 23.2 22.6 21.6 24.2 28.6 9 3 3 2 1 19.9 23.1 Noise Factors L8 Outer Array ExFxG 1 N 2 1 2 1 1 N 2 S/N FXG 1 N 2 2 1 1 2 2 NN (db) 1 1 1 2 1 1 2 EXG G ExF 2 1 1 1 2 1 N 2 1 N N N N NNNN 1 2 2 1 2 1 1 2 F 1 1 N 2 2 1 2 NN A E 1 1 1 1 2 2 2 Control Fators L9 Inner Array A B D 1 2 3 4 1 1 1 1 Uml No. w N O 15.6 9.5 16.9 19.9 19.6 20.0 19.1 WN16 19.6 19.8 1 2 15.0 19.4 19.2 21.9 Nm 2 3 Nm 2 3 16.2 16.7 19.7 22.6 24.2 23.3 1 3 16.3 19.1 15.6 18.2 20.4 4 2 1 2 17.4 18.6 18.9 23.2 24.7 Nm 2 18.9 19.4 2 3 3 1 2 5 6 18.3 19.7 16.2 25.1 w N 18.6 16.3 21.0 25.6 14.7 21.4 19.6 27.5 22.5 25.3 24.7 2 3 1 20.0 19.8 7 3 1 3 18.4 18.6 Nm 2 3 8 19.1 15.6 m N 3 16.8 17.8 2 1 WN 12.0 14.2 15.0 NH 23.6 16.8 17.3 15.1 19.3 19.6 22.7 24.3 23.2 22.6 21.6 24.2 28.6 9 3 3 2 1 19.9 23.1