GDP-32
II
INSTRUCTION MANUAL
October 2002 Section 12, Page 20
12.9 WINDOW CENTERS AND WIDTHS
32, 16, 8 and 4 HZ REPETITION RATES
WINDOW CENTERS WINDOW WIDTHS
WINDOW POINTS 32, 16, 8 BEGINNING END
#'S PER WINDOW and 4 Hz
1 1 0.0 µ sec 0.0 µ sec 0.0 µ sec
2 1 30.5 30.5 30.5
3 1 61.0 61.0 61.0
4 1 91.6 91.6 91.6
5 1 122.1 122.1 122.1
6 1 152.6 152.6 152.6
7 2 197.8 183.1 213.6
8 2 259.0 244.1 274.7
9 2 320.1 305.2 335.7
10 3 395.6 366.2 427.3
11 3 487.3 457.8 518.8
12 5 607.3 549.3 671.4
13 6 774.5 701.9 854.5
14 7 972.3 885.0 1.068 m sec
15 9 1.215 m sec 1.099 m sec 1.343
16 11 1.518 1.373 1.678
17 15 1.911 1.709 2.136
18 19 2.426 2.167 2.716
19 23 3.064 2.747 3.418
20 29 3.852 3.449 4.303
21 36 4.838 4.334 5.402
22 47 6.094 5.432 6.836 — 32 Hz
23 58 7.687 6.867 8.606
24 72 9.659 8.637 10.803
25 92 12.14 10.834 13.611 — 16 Hz
26 116 15.30 13.642 17.151
27 145 19.25 17.182 21.576
28 184 24.24 21.607 27.192 — 8 Hz
29 231 30.53 27.222 34.241
30 289 38.42 34.272 43.061
31 369 48.38 43.091 54.322 — 4 Hz
To find the window centers or beginning and ending sample points for the windows, just take
these values and multiply them by the ratio of 4 Hz divided by the frequency of interest. For
example to determine the window widths for a 2 Hz repetition rate, multiply the above numbers
by 4/2 = 2, so for the 20th window the center would be 2 x 3.852 = 7.704 ms, and the beginning
of the window would be at 2 x 3.449 = 6.898 ms, and ending at 8.606 ms.
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