Autonomy in Guidance Using Image-based Terrain Recognition and Optical Navigation
نویسندگان
چکیده
In this paper, we propose a scheme of autonomous guidance of spacecraft based on grayscale image. The autonomous guidance consists of 2 key technologies; topographic recognition and optical navigation. First, the pixel brightness in an image of the target surface is directly evaluated (without shape reconstruction) using a look-up table. A fuzzy-like logic determines an appropriate target site for landing, scientific observation, etc. Then, the spacecraft autonomously navigates itself by fixating visually characteristic areas in the surface image. The on-off thruster control is used to guide the spacecraft to the target site. By repeating the target designation and the optical navigation, we can guide the spacecraft to various interesting sites safely. Computer simulations showed its validity and capability for practical applications.
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