Hi,

Apologies for not updating to this thread sooner - thanks to everyone for their input, particularly BB for taking the time to produce an example radar.

I now have a system that works well on my development machine, I now need to optimise it for slower processors (the target is an Intel Atom based single board computer)

I am currently working through the best way to implement BB's multiple lines in each pass with the real data I am processing - I will post back with the results and my code when I have got a bit further with it.

Thanks

Chris