Determining Sun-O'-Plane Angle with Rolling Motion Correction

In summary, the conversation discusses the scenario of an airplane traveling at an axis with a signal projecting vertically down along AF axis. The plane is affected by rolling motion at a known angle, causing the axis to shift to A'F' and the point O to become O'. The goal is to find a correction formula to determine the new Sun-O'-Plane angle, with the known information being the S-o-P angle and the plane's altitude. The conversation also clarifies that PO and PO' are different and O and O' are on the ground, making the shaded triangle right-angled with a vertical leg.
  • #1
jskillz411
3
0
so imagine you have an airplane traveling at an axis projecting a signal vertically down along AF axis and you have some point O on AF axis and a refference angle Sun-O-Plane . the plane gets affected by some rolling motion at a certain known angle... now the axis shifts to A'F' and O become O' I drew a little picture to show my idea. I'm trying to come up wit a correction formula to find out what the new Sun-O'-Plane angle would be .The sun could be at any position. and the information known would be the S-o-P angle along with the planes altitude.

any feed backs guys would be great =)
 

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  • #2
I'm not sure exactly what you mean.
is the distance PO and PO' the same? Or are we to assume O and O' are on the ground (meaning the height doesn't vary)?
If the first case is correct then your shaded region should be an isosceles triangle.
If the second case is correct then you would have a right triangle.
and in both cases one leg of the triangle is completely vertical.
So, which case is it?

Or am I way off?
 
  • #3
PO is different from PO' and O and O' lay on ground level which truly makes the shaded triangle right angled. also the height does not varry !
The signal is projected vertically down at first than at an angle when roll motion takes place.

thank you...
 
Last edited:

Related to Determining Sun-O'-Plane Angle with Rolling Motion Correction

1. How is the sun-o'-plane angle calculated?

The sun-o'-plane angle is calculated using a mathematical equation that takes into account the rolling motion of the object and the position of the sun in the sky. This equation is based on trigonometry and can be solved using data collected from sensors or manually measured.

2. Why is it important to correct for rolling motion when determining the sun-o'-plane angle?

Rolling motion can significantly affect the accuracy of the sun-o'-plane angle measurement. Without correction, the angle calculated may be incorrect and lead to errors in other calculations and data analysis. By correcting for rolling motion, the accuracy and reliability of the measurement can be improved.

3. What are the different methods used for rolling motion correction?

There are several methods for rolling motion correction, including using gyroscopes, accelerometers, and GPS sensors. These sensors can measure the movement and orientation of the object and provide data that can be used to correct for rolling motion in the calculation of the sun-o'-plane angle.

4. How does the position of the sun in the sky affect the determination of the sun-o'-plane angle?

The position of the sun in the sky is a critical factor in determining the sun-o'-plane angle. The angle is calculated based on the relationship between the object, the sun, and the horizon. Therefore, if the sun's position changes, the angle will also change, and this must be taken into account for accurate measurements.

5. Can the sun-o'-plane angle be determined without any sensors?

Yes, it is possible to determine the sun-o'-plane angle manually without the use of sensors. This requires measuring the object's position and orientation relative to the sun and horizon using tools such as a protractor and inclinometer. However, using sensors can provide more precise and efficient measurements.

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