i want to do a project on anteena tracking based on maximum recieved signal strength so if any body provide me the circuit as well as the software because i am much confused about how to move anteena automatically with the moving object please help me out
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The one way I had thought of to do this would end up being a little complicated. If you just want to worry about horizontal at first, you would need three antennas to receive. You would then have to compute the difference in the times that each ant. receives the signal (which means down to probably the nano second), then do some calculations to get an azimuth.
I know the tech exists, because I know the Military has such systems to track radio transmissions. Building it would be the hard part.
Do you by any chance have some code you could share? I think this would be a great addition to the community if it isn't already floating around somewhere in these forums...
That is what we did. We used Trig and a trajectory prediction to control the antenna. the antenna was moved 15 times a second even though we were only getting position updates once per second.
Does it have to be based on recieved signal strength? As far as I know these tend to be unreliable, especially in the GHz range, because of reflections. Most DIY trackers use GPS coordinates and a little bit of trigonometry to solve the IK equation and point each servo in the right direction. For added kick you might implement some kind of trajectory prediction to improve the accuracy and stability of the link.
Replies
I know the tech exists, because I know the Military has such systems to track radio transmissions. Building it would be the hard part.
http://readymaderc.com/store/index.php?main_page=product_info&c...
@Michael
Do you by any chance have some code you could share? I think this would be a great addition to the community if it isn't already floating around somewhere in these forums...