Dynamic Reconfigurable Channelization Technology Based On Frequency Response Masking

In the process of studying dynamic reconfigurable channelization, it is found that the non-ideal characteristics of the filter can easily cause the energy overlap of adjacent channels to produce several spikes in the spectrum after reconstruction, commonly known as the rabbit-ear phenomenon [1]. To solve the problem, a new dynamic reconfigurable channelization design method based on frequency response masking (FRM) is proposed. The FRM technology is used to reduce the computational complexity of the overall filter. It is applied to the reconstruction filter bank to seek to reduce the impact of the rabbit-ear phenomenon without increasing the amount of computation. The simulation analysis and the comparison of complexity verify the effectiveness of this method. This method has a certain value in engineering application.

[1]  D. M. Klionskiy,et al.  Application of polyphase filter banks to wideband monitoring tasks , 2014, Proceedings of the 2014 IEEE NW Russia Young Researchers in Electrical and Electronic Engineering Conference.

[2]  Si Xi-cai.  An efficient dynamic digital channelizer , 2009 .

[3]  Shilian Zheng,et al.  Wideband spectrum sensing based on group testing utilizing polyphase filter banks , 2014, 2014 19th International Conference on Digital Signal Processing.

[4]  Ge Lin-dong.  Dynamic Channelization Based on NPR Modulated Filter Banks , 2007 .

[5]  Chen Qiang.  Design of an efficient and dynamic channelized receiver , 2010 .

[6]  Gordon L. Stüber,et al.  Efficient wideband channelizer for software radio systems using modulated PR filterbanks , 2004, IEEE Transactions on Signal Processing.