Aerial target e.g. airborne radar, detecting device for protecting e.g. airplane, has antennae with reception modules connected to reception channels, and antenna beam formed through digital beam formation from signals received via modules

摘要

The device has a transmission unit formed of high power amplifiers (211, 221) for transmitting microwave signals, and a group of reception channels (201) for receiving signals reflected by a target. A set of antennae formed by a disk (2), is placed around an aircraft and coupled to the amplifiers and channels. The antennae include transmission modules (21, 22) covering an angular range and fed by the amplifiers and reception modules (23-26) connected to the channels. Antenna beam is formed through digital beam formation from signals received through the reception modules, by calculation unit.