Africa: the world’s second largest and second most-populous continent.
An unmanned aerial vehicle (UAV), commonly known as a drone, is an aircraft without a human pilot aboard. UAVs are a component of an unmanned aircraft system (UAS); which include a UAV, a ground-based controller, and a system of communications between the two. The flight of UAVs may operate with various degrees of autonomy either underremote control by a human operator, or fully or intermittently autonomously, by onboard computers.
A microwave link is a communications system that uses a beam of radio waves in the microwave frequency range to transmit information between two fixed locations on the earth. They are crucial to many forms of communication and impact a broad range of industries. Broadcasters use microwave links to send programs from the studio to the transmitter location, which might be miles away. Microwave links carry cellular telephone calls between cell sites. Wireless Internet service providers use microwave links to provide their clients with high-speed Internet access without the need for cable connections. Telephone companies transmit calls between switching centers over microwave links, although fairly recently they have been largely supplanted by fiber-optic cables. Companies and government agencies use them to provide communications networks between nearby facilities within an organization, such as a company with several buildings within a city.
当前,无人机系统已成为信息化作战条件下夺取和保持信息优势的重要装备,而无 人机数据链是无人机系统将信息优势转化为战斗力的关键设备和有效手段。大型 预警、战略侦察以及高分辨率对地观察飞行器作为信息化战场信息获取的主力军,而 空前巨大的信息量需求与数据链传输能力不足的矛盾日益尖锐。
美媒发表题为《全世界无人机需求高涨》的文章称，在全球市场上，目前已经有 4000种无人机在销售。美国仍将是最大的无人机客户，占据全球市场的45%。但 无人机的制造和采购增长并不局限于西方。中国对无人机的投入，从量上说甚至 超过美国。