16.5. Multipath analysis datafiles

16.5.1. Introduction

The Multi Path Analysis view (see Section 11.2.7, “Multipath analysis”) allows a target depth to be estimated by visually aligning a calculated set of time delays with a measured set. This view requires two additional data files to be loaded. Both of these files are in textual csv format.

16.5.2. SVP file

The Sound Velocity Profile file is a two-column csv text file:

depth

floating point depth (m)

sound speed

floating point sound speed (m/s)

16.5.3. Time delays file

The time-delays data file is a multi-column csv text file:

YYYY,MM,DD,HH,MM,SS,mmm,TIME_DELAY(msec),POWER(dB)
2009,04,22,18,37,00,254,6.797688,22

date

Series of fields recording date and time (including milliseconds) of observation

time-delay

floating point time delay (mSecs)

power

ignored in current implementation

Note, you can determine the timestamp using the unix timestamp web site.

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