VIA Technologies EPIA SN-Series Specifications download pdf (Page 23)

Background

STARS

Simulator

Camera Model

Attitude and Orbit

Simulator

Earth Model

Image Sequqencies

Generator

Images Dataset

Attitude Estimation

Algorithm

Figure 9: STARS simulation environment diagram

The output of the model was used as a reference to test the image processing

algorithms employed to retrieve the spacecraft attitude from Earth image pairs. Synthetic

Earth images were extracted from the Landsat 7 database that has a global coverage and it

is based on visible panchromatic frames with 15 m of ground sampling distance. Most of

the effort of the simulation part was spent to determine what type (and their magnitude)

of errors were involved in the entire process.

Figure 10: STARS laboratory test-bed

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VIA Technologies EPIA SN-Series Specifications Page 23