Information about Transfert Fonction

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Mat R

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Nov 25, 2025, 5:43:39 AM (3 days ago) Nov 25
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Hello everyone,

I am a French student working on a project about the Heq5Pro equatorial mount. I use the software to track celestial objects and need to understand its operation in detail to clearly explain my scientific approach to the examiners. I would like to ask a few questions:

How does the software convert a target star’s spherical coordinates into an approximate x,y position?
Specifically, does it use a transformation matrix (and which one), or another method?

How can the software be modeled as a controller in the context of control theory (LTI systems)?
I aim to represent the software as a controller acting on the mount’s transfer function, linking directly to our LTI systems coursework.

Thank you very much for your time and help. I look forward to your reply.

Best regards,
Rouvroy Mathieu

Bruce Waddington

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Nov 25, 2025, 11:19:34 AM (3 days ago) Nov 25
to Open PHD Guiding
Handled via private e-mail.

Bruce
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