Implementation of Digital Channelized Receiver for Spatial Spectrum Estimation System
He Zishu · Radar Science and Technology · 2010
According to the analysis of the theories of wideband digital receiver based on poly phase filter,and combined with the system of 9-element spatial spectrum estimation,we focuse on the implemental struc-ture of wideband digital receiver and transfer the parallel multi-channel processing into serial structure.By taking the particular data flow of the poly phase filter processing into account,a FPGA-optimized structure is derived.This paper presents the detailed derivation and implementation of the proposed structure.Finally,the system is realized in EP2S60and the running results confirm the effectiveness of the new structure.