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Add storage of split-aperture data #29
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- Pointing direction of beams changed from a vector to a rotation of the platform coordinate system, - Definition of the various types of split-aperture transducers - backscatter beam data now has sub-beams
Continue working on split-aperture text
Add angle factor variables to beam_group
A note: the proposed way to store backscatter power and split-aperture phase angles uses much more space than the same data in the EK60 .raw format. This needs to addressed (perhaps by supporting the compressed form of data that the EK60 .raw format uses). |
Hi Gavin, please fin below a first set of comments from our Ifremer's side. (we will make detailled comments field by field once we agree on those ones)
Two remarks aside :
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For the minor and major angles, I chose two words that deliberately did not convey a particular direction (and are the words used by Echoview). For example, alongship and athwart don't quite work if a beam is pointing horizontally; horizontal and vertical confuse when a beam is pointing directly down; x&y would cause confusion with the platform coordinate system. |
minor and major are good naming, better than along, athwart, vertical and horizontal. I will try to make a drawing to clarify things for me (maybe with some example with beam pointing vertically or horizontally) |
Rename beam_type enums to fit the use of sub-beams instead of sectors
fix some of the type 1 equation layouts Add in type 3 equations add placeholders for sonar beam coordinate system section remove odd characters in a .svg figure
force maths into svg format
# Conflicts: # SISP_formatted/TG-AcMeta.html
Tweak layout add build status for previews
A proposal to address issue #3 (add storage of split-aperture data). Made up of these changes:
A potentially significant change to come after this pull request is to support multi-channel sonar systems (e.g., multi-frequency EK60 echosounders).