Efficient Digital Channelized IFM Receiver Research

In this paper, we use a common deducing method to acquire an efficient architecture based DFT polyphase filter banks to realize wideband digital channelized receiver. Furthermore, by applying instantaneous frequency measurement (IFM) technology to that architecture, an approach of digital channelized IFM receiver is proposed. The simulation in MATLAB software indicates that approach has increased frequency resolution of channelized receiver to distinguish simultaneous two signals in one channel. And it is an efficient approach of receiver for reconnaissance which can adapt to the insensitive signals environment of modern EW for its low computing complexity and high hardware realizing efficiency.