converted to a ENU coordinate system (AQP-1017)

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EDGAR OSORIO

• May 06, 2020 17:54

I am reading a AQP10571 . I sent AS command and returned :

5 5 2020 13 12 27 0 232 14.6 1509.2 136.1 -24.1 -161.5 0.278 15.83 0 0␍␊

1 966 669␍␊

2 5425 1858␍␊

3 936 2014␍␊

How can i converted to a ENU coordinate system ?.

 

VelEN :?    Dir EN:?   Vel IE:?     Vel IN:?    Vel IU:?

 

 

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• Official comment

  

  Ellie Best

  • May 07, 2020 07:18

  Hi Edgar,

  This will depend on how you configured the instrument before you deployed. If you chose to collect in Beam coordinates, you will need to convert to XYZ before you can then convert to ENU. The FAQ "How is a coordinate transform done" has the maths you need to do this: 

  https://support.nortekgroup.com/hc/en-us/articles/360029820971-How-is-a-Coordinate-transformation-done-

  The FAQ includes a link to download a MATLAB file that describes how to do the transformation as well. Bear in mind that the ASCII data you are collecting has the speed in mm/s and the direction in tenths of degrees to avoid decimal numbers (see Integrators Guide for data structures), so you may want to convert these to m/s and degrees.

  Ellie

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