Triton Isis Manual do Utilizador descarregar pdf (Página 156)

June 2004 Isis® Sonar User's Manual, Volume1

142

Figure 8-14: Trackpoint-enabled layback correction method

The two methods of computing the towfish position are mutually exclusive.

That is, enabling the Trackpoint option disables the Layback/Cable method

and vice versa. Both types of data may be recorded in the

.XTF file. The

user chooses which method to apply in the Layback Correction dialog box.

•

Current Delta X: The X-offset (East or West) in meters from the

Trackpoint head to the towfish.

•

Current Delta Y: The Y-offset (North or South) in meters from the

Trackpoint head to the towfish.

•

Error code: The Trackpoint system transmits an error code for each

update. This value represents the confidences that the Trackpoint

system has in each update — the higher the value the better the

position.

•

Ignore vals with code less than: A zero here will allow all updates to be

used. Higher values (

vals) will filter out poor positions. See the

Trackpoint manual for more information.

Chapter 8: Using the View Menu

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