Design and Implementation of FRM-Based Filter Bank With Low Complexity for RJIA

In this brief, we propose a design method of frequency response masking (FRM)-based filter bank for reconnaissance and jamming integrated architecture (RJIA) to solve the problems of low sensitivity and inability to process simultaneous arrival signals of conventional RJIA. The perfect reconstruction filter bank (PRFB) is adopted to increase sensitivity and provide the ability to process simultaneous arrival signals and jam multiple signals. The FRM approach is used to reduce the complexity of the RJIA to ensure the realizability on single field programmable gate array (FPGA). The design and FPGA implementation are presented, and experimental results show that the proposed FRM-based filter band for RJIA offers 60.63% reduction in multipliers complexity and 38.14% reductions in chip power than PRFB, which has advantages of high sensitivity and ability of multiple signals reconnaissance and jamming.