Design, Implementation And Improvement Of Miniaturized Phased Array Radar Beam Control Syste

The phased array radar system replaces the mechanical scanning method of the traditional radar with electrical scanning,and realizes non-inertial scanning.It has the advantages of flexible beam scheduling,large coverage airspace,and the ability to search and track multiple targets.On the other hand,today’s radar systems are developing in the direction of miniaturization,and the internal space of the equipment is limited,which puts forward requirements for miniaturization,high integration,and easy expansion of the radar sub-systems.As an important part of the phased array radar,the beam steering system still has a lot of room for improvement in terms of improving system performance and optimizing implementation methods.The research work of this thesis is mainly divided into three parts: the first is the realization scheme of the beam steering system based on FPGA;the second is the improvement scheme of the beam steering system based on the ZYNQ platform;the third is the performance test of the beam steering system.This thesis aims at the performance index requirements of the miniaturized phased array radar beam steering system,combined with the implementation of common beam steering systems,summarizes its system characteristics.Based on this,the overall design of the beam steering system,hardware selection,the design of the software flow,programming and debugging work have been completed.The FPGA-based beam steering system realization part includes system index demonstration,hardware selection,working mode design,and detailed description of the system software module design and realization;the improvement of the beam steering system based on the ZYNQ platform includes the division,implement and interaction of the system on the PS side and the PL side,and summarizes the advantages of using the ZYNQ platform to achieve beam steering functions.In addition,this thesis also conducts module verification of the system and overall performance test of the radar related to the beam steering system.The results show that the internal communication quality of the beam steering system is good,and the performance indicators of some radar front ends closely related to the beam steering,for example,the quality of the transmit/receive pattern and the accuracy of beam pointing can meet the requirements of the antenna front system.The FPGA-based beam steering system implementation solution has the advantages of fast development speed and parallel implementation.On this basis,the algorithm implementation,functional verification and system design of the beam steering system based on the ZYNQ platform are improved.The design and implementation of the system provide a new solution,both of which have practical application value and research significance.