Context (archaeology)

Robot

Engineering

Computer security

Archaeology

Computer science

Collision

Collision avoidance

Mechanical engineering

Remotely operated underwater vehicle

Geography

Work (physics)

Mobile robot

Artificial intelligence

Collision avoidance system

Aeronautics

IEEE Access

Moving towards autonomy, unmanned vehicles rely heavily on state-of-the-art collision avoidance systems (CAS). A lot of work is being done to make the CAS as safe and reliable as possible, necessitating a comparative study of the recent work in this important area. The paper provides a comprehensive review of collision avoidance strategies used for unmanned vehicles, with the main emphasis on unmanned aerial vehicles (UAV). It is an in-depth survey of different collision avoidance techniques that are categorically explained along with a comparative analysis of the considered approaches w.r.t. different scenarios and technical aspects. This also includes a discussion on the use of different types of sensors for collision avoidance in the context of UAVs.

Unmanned Aerial Vehicles (UAVs): Collision Avoidance Systems and Approaches