Unmanned vehicles, also known as autonomous vehicles or drones, are vehicles that operate without a human operator on board. They are controlled remotely or autonomously through pre-programmed instructions and sensors. Unmanned vehicles are used in a variety of industries and applications, including military operations, search and rescue missions, surveying and mapping, agriculture, and transportation. These vehicles are designed to perform tasks that are difficult or dangerous for humans to undertake, and offer many benefits such as increased efficiency, safety, and cost-effectiveness. Research in the field of unmanned vehicles focuses on improving the technology, navigation systems, communication networks, and regulations governing their use.