Best approach for the design of the Radial Image - sector scanning Sonar

This is not a problem, but you are asked to think about the best approach.

I need a sector sonar image data.  This device runs on 360 (degree sub-segments) and generates a set of data from the origin - radially outwards at an angle of no - to an endpoint.  Therefore, for each 'ping' sonar I need data points in the center of a circle graph, a radial angle on the outside.

I don't know if I should use LabView vi for the drawing tools, or go to ActiveX or?

Anyone has a suggestion on the best approach to this?

Thank you
Peter

Peter,

You can use a chart of the LabVIEW intensities for this kind of display.

Maybe not the best way, but it is possible.

As an attachment, I did an example with your specifications.

datapoints 1024 by degree

See example image:

Basic principle:

-Create the matrix of 2048 x 2048 points database

-For each 'line of angle' calculate which pixel to replace each data point in the line

-Because "datapoints" becoming bigger, far from the Center, repeat the action for several "sup angles. for example, to 85 deg also Calc. 84.6, 84.8, 85, 85.2 85.4

It gives you an idea of the possibilities, but performance may be necessary.

-Only external Calc x pixels more degrees

-Do some kind of anti-aliasing to avoid the pixelated lines.

See attached example. (LV 8.6)

Tags: NI Software

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