Research on Broadband Channelized Receiver Technology Based on DBF

摘要

The complex electromagnetic environment in the battlefield requires radar reconnaissance receivers to have high instantaneous bandwidth, high sensitivity, high resolution and large dynamic range. In addition, it must have the ability to process simultaneous arrival signals and real-time processing. Beam forming is a process in which a multi-sensor array spatially enhances a desired signal, suppresses an interference signal, and a noise signal. Through the beam forming technology, the receiving gain of the antenna can be improved, and the electronic reconnaissance receiver has higher sensitivity. The wideband digital channelized receiver is a very practical receiver system in the reconnaissance system. It has complex environmental adaptability, rapid response capability and simultaneous signal processing capability. Therefore, the broadband receiver technology based on DBF is a commonly used receiving system in the field of electronic reconnaissance.