Table 1. Experiment results. (unit: meter).

Filter result	Not moving state	Moving state
#1	1.839	3.645
#2	1.699	3.738
#3	1.701	3.596
#4	1.914	3.883
#5	1.779	3.741
#6	1.688	3.850
#7	1.776	4.060
#8	1.883	3.788
#9	1.703	3.668
#10	1.587	3.551