Distributed active phased array radar and beam forming method thereof

The invention relates to distributed active phased array radar and a beam forming method thereof. A transceiving component array consists of digital transceiving components which comprise analog front ends, power amplifiers, low-noise amplifiers and front-end digital units. The distributed active phased array radar further comprises a central processor, the central processor is connected with the multiple front-end digital units through a local area network by means of the hierarchical distributed processing technology, and used for setting operating modes of all of the front-end digital units and waveform data and receiving baseband data to guarantee reliability of target echo data subjected to digital synthesis and sending public clock signals to the front-end digital units through a clock network to guarantee synchronization of clock signals of each port. The multiple front-end digital units are correspondingly distributed in an antenna array, and each front-end digital unit is matched with one transceiving component. The distributed active phased array radar and the beam forming method thereof have the advantages of high flexibility, flexibility in data processing mode and improvement of phased array radar performances.