Autonomous navigation system and method for a maneuverable platform

A system comprising:

• a situation awareness module configured to receive platform and obstacles data relating to at least one of:
• position, speed, and direction of said platform and of obstacles;
• and
• a decision module configured to:
• obtain a plurality of objectives relating to a maneuverable platform, wherein the objectives comprise mission related and non-mission related objectives and wherein the objectives are weighted in accordance with a grading scheme;
• determine a plurality of options of direction and speed for the platform;
• autonomously select, one option of the plurality of options, in order to achieve said objectives, by calculating a weighted grade of each option based on the weights of the objectives and said grading scheme, wherein the selecting includes, for each obstacle, calculating projected positions of the platform and of that obstacle to determine the distance between the platform and the obstacle at the closest point of approach and estimated time to arrive to the closest point of approach, and determining, with respect to an early reaction time and an avoidance distance suitable for that obstacle and the platform, whether that distance is smaller or greater than the avoidance distance;
• and
• periodically repeat:
• the receiving with updated platform and obstacles data and the autonomously selecting with the updated platform and obstacles data.