oygx210 / QUEST

This depository deals with a popular algorithm called "Quaternion Estimator" or often abbreviated as "QUEST" used widely in satellites for the determination of their "orientation" or more appropriately, their "Attitude" w.r.t. a reference frame.

Instructions:

1. Open the 'Main_Function.mlx' file in MATLAB and choose the current path as the path to folder 'Functions'.
2. Make sure that the 'input.xlsx' file in 'Functions' folder contains the input data.
3. Run the Live script.
4. The output will be stored in 'output.xlsx' file in the same folder for next usage as well as in the 'input.xlsx' file for internal usage.

Inputs: (from 'input.xlsx')

1. The number of vectorial pairs available.
2. Vectors in both body and reference frames.
3. Weightage of each vector.

Output: (to 'output.xlsx' and 'input.xlsx') Quaternion form of the attitude of satellite.