Efficient wideband digital channelized monobit receiver
Zhao Guo-qing · Shenyang Gongye Daxue xuebao · 2010
To meet the requirement of efficient realization structure and high performance of electronic war receiver,a scheme for digital channelized monobit receiver was proposed.An efficient structure based on WOLA filter banks to realize wideband digital channelized receiver was derived from the traditional STFT algorithm structure.By using the non-constraint relationship between decimation rate and channel number,the monobit receiving technology was applied in the present structure without data interpolation.Thus,such disadvantages as low instantaneous dynamic range of wideband monobit receiver and frequency resolution limitation of channelized receiver can be avoided.The simulation results indicate that the proposed scheme can improve the frequency resolution of channelized receiver.The hardware realizing efficiency is high,the computing complexity is low,and the instantaneous dynamic range is dependent on the filter shape,which can meet the real-time requirement of electronic war.