Re: [amsat-bb] Lock on Tracking

[Ed Manuel <emanuel@xxxxxxxxxxxxxxxxx>]

Another problem is that if you don't have any prediction for direction of 
motion, which way do you correct when the signal level fades.  You may end 
up slewing the array several times to determine which way it went.  And you 
only have two ways to slew the array.  Sounds like something like this 
might really wear out rotors.

A combination of predictive tracking and signal level feedback might be an 
interesting approach.

Ed


At 08:17 AM 12/11/02 -0600, you wrote:
>Hi Rod
>   I have thought about building a system that would work by using the signal
>strength from the satellite as reference than a simple error amplifier
>circuit to drive the AZ-El. But this may be very difficult if the signal
>from the satellite fluxuates allot. With fast enough circuits and motors, it
>seems possible, but it would probably take a good computer programmer to
>develop a workable algorithm.
>My thoughts
>Ben K9BF
>----- Original Message -----
>From: "Rod Smallwood" <Rod@sbs293.customer.demon.com>
>To: <amsat-bb@AMSAT.Org>
>Sent: Wednesday, December 11, 2002 4:16 AM
>Subject: [amsat-bb] Lock on Tracking
>
>
> > Unless I am much mistaken everybody uses predictive tracking.
> > Has anybody had any experience with Radar style tracking
> > where the system locks on to the target (ie AO40) and follows
> > it?
> >
> > Rod (G8DGR)
> >
> >
> >
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> >
>
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