DWT      Kb = 7      mid-point estimators
P	δ		Dsig	∆Dsig		Dref	∆Dref
6	0.5	9557.333	9216.0
5	0.5	2389.333	2304.0	341.333	256.0
4	0.5	597.333	576.0	85.333	64.0
3	0.5	149.333	144.0	21.333	16.0
2	0.5	37.333	36.0	5.333	4.0
1	0.5	9.333	9.0	1.333	1.0
0	0.5	2.333	2.25	0.333	0.25