Model of Non-leaking-Alarms and Non-aliasing Channelized Digital Receiver

摘要

Because the ability of handling multiple signals at the same arriving time and has a high intercept probability, wideband Channelized receiver has become a hot research topic in domestic and foreign. Channelized receiver based on polyphase filtering has less computational and more channels. In this paper, a new efficient structure model based on real signal non-maximally decimated channelization is derived, it has a wide applicability, and we analyzed the advantages and disadvantages of this model. The leaking-alarming phenomenon of the channelized receiver is discussed in this paper. In this paper, the aliasing phenomenon caused by part-overlapping polyphase filtering structure is solved by a new method of extending the processing bandwidth. Simulation analysis for the non-maximally decimated non-leaking-alarming and non-Aliasing channelized digital receiver model presenting by this paper, the consequence of the simulation confirms the model is accurate and reliable.