Receive Technique integrated radar and radar countermeasure reconnaissance based on dynamic channelization
Jifei Pan · Journal of Circuits and Systems · 2012
A receive technique integrated radar and radar countermeasure reconnaissance based on dynamic channelization is proposed to resolve the problem of deferent characteristics between radar and radar countermeasure reconnaissance receiver.First,the intermediate frequency bandwidth is decomposed to many subbands using cosine modulaed filter banks.Further,the nonuniform dynamic channelization is realized by using the technique of spectrum sensing and adjacent channel merging.At last,the echo of radar and radiation of emitter can be received integrated based on nonuniform dynamic channelization.A method of design high-complexity prototype filter is introduced to satisfy the request of integrated receiver on instantaneous dynamic range,sensitivity,surveillance bandwidth and frequency resolution.Theoretical analysis and computer simulation illustrate efficiency of this integrated receive technique.