GSSI SIR 30, Руководство пользователя

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Geophysical Survey Systems, Inc. SIR® 30
Manual
MN 93-101 Rev E 99
Chapter 6: Configuring the SIR 30 with a GPS
The SIR 30 is designed to work with a wide variety of GPS units. In order to operate correctly with the
SIR 30, your GPS must be able to output the NMEA GGA string through a 9-pin serial port or a USB to
serial connector.
The GPS data is saved along with the radar *.DZT file as a separate file with the same root name as your
GPR data file. A profile collected with GPS will thus have three files associated with it:
FILE____001.DZT (RADAR data), FILE____001.DZW (filter and gain settings for the raw data), and
FILE____001.DZG (GPS data).
Step 1: Hardware Setup
1
Securely attach your GPS receiver to your survey vehicle or the GPR antenna.
2
Measure the in-line (front-back) and cross-line (left-right) offset from the center of the GPR antenna
connected to Channel 1 of the SIR 30 to your GPS antenna.
3
Connect the serial port from your GPS to the GPS port on the back of the SIR 30.
Step 2: Initial System Settings
1
The User will see the Systems Settings screen on startup. The User can also access it by clicking
RADAR CONFIG > SYSTEM SETTINGS.
Figure 148: Systems Setting Screen – CUSTOM GPS.
2
Change GPS Type to CUSTOM.
3
Enter the In-Line (front-back) and Cross-Line (left-right) distance from the center of the antenna
connected to channel 1. If the antenna is in front of the GPS receiver, the In-Line value is negative. If
it is to the left of the antenna (facing the direction or survey) than the Cross-Line value is positive.
4
Select ACCEPT.