A MIMO radar for Sense and Avoid function: A fully static solution for UAV

Up to now, UAV are employed in crisis or war times. For training purposes, some areas are especially attributed for UAV deployment in a limited space area and in a limited time slot. In the future, both for emerging civilian applications and for training purpose, these limitations will no longer be acceptable and UAV will have to be inserted in the general air traffic. Thus, “Sense and Avoid” systems will be mandatory. The radar is the most pertinent non-cooperative “all-weather” sensor because it provides, by essence, accurate ranging, direction and closing speed. In this paper, we propose a low cost radar solution based on the coherent “MIMO” principles. This design allows the implementation of the radar within the UAV airframe without any moving part.