Instead of an exhaustive search, you might try a genetic algorithm.
73,
Steve
AA4AK
At 11:51 PM 9/13/2005 -0400, Mike WA8BXN wrote:
Don -
If you can easily tune the tuner by hand .... I always teach my
programming students to just watch themselves manually performing the task,
then write down a set of instructions so someone else could do that, and
then write the program to follow those steps.
Seems to me an exhaustive search trying all combinations has to find the
lowest SWR, but that would take time. You could perhaps first run through
your smart search method and if it gets close enough stop there, and if not,
try all values.
If you could get an approximation of the complex impedance of the load (not
exactly sure how to do that offhand) you could then calculate what is
approximately needed to best match it, and search around there.
I will be interested in reading the ideas of others on this topic!
73/72 - Mike WA8BXN
-------Original Message-------
From: Don
A few months ago I maintained a brief correspondence with some on this list
with an interest in a homebrew balanced autotuner. The project is nearing
the point where I will be installing it into a K2 case. At the moment,
though, I am having trouble coming up with a software algorithm that finds
minimum swr and this message is a request for suggestions.
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