Abstract: In this paper,we analysis several bottom processing algorithms on target recongnition and propose spatial filtering calculation model,and implement a set of real-time hardware architecture for spatial filtering algorithms with VerilogHDL.The advantage of this structure is that it has a good configurability which can make users to choose proper filtering methods and calculated parameters according their needs.At present,we have completed digital IC front-end design process of the module,such as the structure design,RTL coding,function verification,etc.Simultaneously,we completed the work of Circuit synthesis and formality verification with Design Compiler Under the SMIC 0.18μm CMOS process,and obtained the area and power are 1.9mm² equal to 114.2kGates,30 mW respectively at the frequency of 120 MHz.The design has fast speed,low-power,highly configurable advantages compared with the published similar designs.