U.S. Geological Survey Data Series 772

Acquisition Parameters

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Table 1. 11BIM01 chirp data acquisition parameters.

Sample
Frequency
(kHz)
 Frequency
Range*
(kHz)
Record
Length
(ms)
Shot
Rate
(s)
Shot
Spacing**
(m)
Navigation
System
Navigation
Receiver
Accuracy
(m)
 Navigation
Fix
Interval
(s)
43
 4 - 24; 4 -20 and 4 - 16
75
0.250
0.450
OmniSTAR HP DGPS
0.20
 1

* See the operation log for lines where changes occur.
**Shot spacing was highly variable and based on a survey speed of approximately 3.5 knots.

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