Hi.(adsbygoogle = window.adsbygoogle || []).push({});

Ok, so I'm trying to understand the "navigation equations".

n: frame traveling on earth with vehicle.

e: frame centered in earth, rotating with it.

P: Position of vehicle center of gravity.

v[itex]^{n}_{P/e}[/itex] = (vn,ve,vd): velocity of P w.r.t to e-frame, expressed in n-frame.

Normally you don't integrate this, but uses vn,ve,vd to calculate the derivative of longitude,latitude,height and then integrate these to get position in longitude,latitude,height.

BUT, my question is: what do you get if you integrate vn,ve,vd?

I mean, normally when you integrate vectors:

- the frame is fixed in space

- you have a velocity w.r.t this frame

- and you just integrate each component separately

But now

- the frame is rotating

- velocity is not w.r.t this frame

Any thoughts?

/Jonas

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# Integrate vector in rotating frame?

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