7.2.Non-linearity of gain-frequency descriptions
We will remind that non-linearity of AFC (amplitude-frequency characteristic) is calculated as a relation of difference of maximal and minimum values of the calculated powers of spectrum in relation to the mean value of the calculated power (0 is absolute linearness)
Numbers of test samples on which was calculated a parameter
|
P adjusted(ms2) |
Non-linearity (%) |
CardioLab+ |
CardioSpectrum |
UM300 |
OrtoScience |
CARDIO-10DX |
МАК-3 |
fVLF_fLF_fHF_P |
|
|
|
|
|
|
|
1 |
3*2 |
111,4 |
50,00 |
191 |
60 |
75,00 |
11,0 |
2 |
3*200 |
24,4 |
46 |
119 |
89 |
22,60 |
1,2 |
3 |
3*5000 |
10,7 |
46 |
135 |
85 |
17,67 |
1,4 |
4 |
3*1000 |
45,1 |
54 |
76 |
23 |
14,09 |
42 |
5 |
3*1000 |
56,9 |
145 |
101 |
145 |
225,59 |
1,04 |
fVLF_P |
|
|
|
|
|
|
|
6 - 9 |
2 |
88,9 |
29 |
68 |
no data |
zero |
2,4 |
7 -10 |
200 |
1,8 |
13,7 |
152 |
no data |
2,84 |
0,3 |
8 -11 |
5000 |
1,3 |
13,8 |
113 |
0,031 |
2,36 |
0,5 |
fLF_P |
|
|
|
|
|
|
|
12 - 15 |
2 |
9,8 |
0,0 |
59 |
no data |
zero |
0,2 |
13 - 16 |
200 |
6,6 |
4,2 |
11,4 |
no data |
3,86 |
0,4 |
14 -17 |
5000 |
1,5 |
4,1 |
6,8 |
14 |
3,84 |
0,3 |
fHF_P |
|
|
|
|
|
|
|
18 - 21 |
2 |
34,0 |
0,0 |
36 |
120 |
66,7 |
2,9 |
19 -22 |
200 |
10,3 |
10,0 |
2,5 |
105 |
28,4 |
0,5 |
20 - 23 |
5000 |
2,3 |
10,1 |
4,1 |
108 |
28,2 |
0,3 |
Notes:
1. By a grey color is selected tests with the extremely low set powers which actual for the special objects of researches (look the chapter);
2 no data - the program did not execute calculations with this selection;
3.zero - in the results of test program reported about zero-mistake.
|