Progress-Report-1.md

 # Progress Report 1:
 
+We are developing a ROS package for obstacle avoidance drones.
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+We are doing system integration and implementation of a obstacle avoidance system for drones, which support mavlink.
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+We compare and make use of existing algorithm, and also combine and enhance existing algorithm to achieve the goal.
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 ## Introduction:
 - Obstacle Avoidance System For Drones
 - 4 Stages of the project