CARIS BASE Editor : CARIS Batch Utility : HIPS Processes : Compute Boresight Calibration
 

Compute Boresight Calibration

Description

The ComputeHIPSBoresightCalibration process first automatically selects the best planar areas from the sea floor, using recursive division based on the density of soundings and whether or not the patch is selected for sensitivity to pitch, roll or yaw. The selected data then feeds an iterative least-squares algorithm based on the georeferencing equation that computes an estimate of the boresight calibration values

Inputs

HIPS track lines

Command Line Syntax

carisbatch -r ComputeHIPSBoresightCalibration --extent 500000 50000000 501000 50010000 --head-number TWO --max-patches 30 --min-observability 1 --update-vessel SVP --report-file C:\temp\report.txt file:///C:/temp/input/input.hips?Day=2000-001

User Interface Command

Automatic Boresight Calibration

Options

The following table describes the parameters for this process.

Parameter

 

Long

Short key

Description

Can Repeat

Notes

 

--extent

E

The extents that defines the window.

<LowerX> - A number specifying the lower left X origin in the coordinate reference system of the output.

<LowerY> - A number specifying the lower left Y origin in the coordinate reference system of the output.

<UpperX> - A number specifying the upper right X origin in the coordinate reference system of the output.

<UpperY> - A number specifying the upper right Y origin in the coordinate reference system of the output.

The unit is assumed to be that of the output's coordinate reference system, unless otherwise specified. When specifying units for un-projected data, an angle type unit is required. The order for un-projected coordinates is longitude followed by latitude. Supported units: cable, ch, cm, fm, ft, in, inm, km, m, mi, mm, nm, usfm, usft, usmi, usnm, usyd, yd, deg and rad.

--head-number

The transducer head number on which to execute the boresight estimation algorithm.

ONE

TWO

The default value is ONE.

FALSE

--max-patches

The maximum number of patches, which meet density and planarity criteria, to use for boresight computation.

The default value is 25, integer values greater than 1. Increasing this value will increase processing time, but may yield better results when the survey pattern is not optimal, e.g. slope less than 10 degrees.

FALSE

Default 25, values must be positive integers greater than 1.

--min-observability

Minimum observability criteria for each angle individually in a given patch to be considered in the boresight computation.

The default value is 0.

FALSE

Default 0, values must be positive, decimals allowed.

--update-vessel

Update the selected section of the HIPS Vessel File associated with the source data.

TRANSDUCER

SVP

If not set, the HVF is not updated.

FALSE

--report-file

If set, a report of the calibration results is output to the file name and path specified.

FALSE