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141 ActiveXperts Hydromagic 7.0

6.5.1

Filter Data

Filter Data

The filter tool can be used to filter out unwanted data. You can use it to delete zero (invalid) soundings, position data measured with a low DOP, invalid motion sensor data and more.

To start filtering your data, click the "Filter" button from the "Data processing tools collection" screen, which can be opened by clicking the "Tools..." button on

page 5 of the sounding wizard.

(C) 2015 ActiveXperts Software B.V.

Singlebeam Processing 142

Configuring filter options

Position data

This option can be used to filter out unreliable position data, for instance when the GPS fix wasn't RTK fixed, or the DOP value was to high.

Check the "Filter position data" checkbox, and fill out the fields.

Depth data

It is recommended to use this option before the echogram editor, because you can use this to filter out spikes and zero values.

Just check the "Filter depth data" checkbox and enter the minimum and maximum expected depth for

(C) 2015 ActiveXperts Software B.V.