ADU2 datasheet(48/162 Pages) ETC

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Page 36

ADU2 Operation and Reference Manual

Use the arrow keys to highlight the B-file for calibration. If there is only one

B-file listed it is automatically selected.

Press F10 to accept the selection and open the Program Options Menu

(Figure 4.5).

The calibration program first checks a collected ADU2 B-file for adequate

good measurement data to allow the program to provide the correct relative

antenna positions. Next, the double difference phase ambiguities are

determined, or fixed. After these ambiguities have been fixed, they are used

along with the carrier phase measurements to determine the relative position

vectors with respect to a defined body-fixed reference frame (BRF). You can

complete these steps in a single step by selecting Option E, however running

each step manually allows for more user control.

Use the arrow keys to select Option A, Determine Good Period of Data, and

press <ENTER>.

Option A scans the selected ADU2 B-file to determine if a good data period of

1800 seconds exists with no cycle-slips from at least five satellites. At the same

time, the satellite with the highest elevation over the whole period is chosen as

the reference. The results are displayed on the screen (Figure 4.6) and saved in

Figure 4.5: Calibration Program Options

ADU2 Datasheet(PDF) 48 Page - List of Unclassifed Manufacturers