基于ZYNQ的DOA估计算法硬件架构设计

Hardware Architecture Design of DOA Estimation Algorithm Based on ZYNQ

超分辨率波达方向(Direction Of Arrival,DOA)估计是车载毫米波雷达重要的研究方向。为提升角精度,工程应用中需要采用复杂DOA算法进行测角,此时将导致工程实现困难,耗时增加,延长了目标检测、跟踪的响应时间。选用ZYNQ平台,提出一种DOA估计算法架构,降低了复杂DOA估计算法的工程实现难度,同时保证了算法的实时性要求。相比于常规的数字信号处理(Digital Signal Processing,DSP)方案,该方案具备更高的实时性;相比于现场可编程逻辑门阵列(Field Programmable Gate Array,FPGA)方案,该方案提高了算法开发效率,缩短了算法开发时长。该算法硬件架构已在ZYNQ开发平台得到实现和验证,具有重要的工程应用价值。

Super-resolution Direction Of Arrival(DOA)estimation is an important research direction of vehicleborne millimeter-wave radar.In order to improve the angle accuracy,complex DOA algorithm is needed to measure the angle in engineering applications,which will lead to difficulties in engineering implementation,increase time consumption and prolong the response time of target detection and tracking.Choosing ZYNQ platform,a DOA estimation algorithm architecture is proposed,which reduces the engineering difficulty of complex DOA estimation algorithm and ensures the real-time requirement of the algorithm.Compared with the conventional Digital Signal Processing(DSP)scheme,this scheme has higher real-time performance.Compared with the Field Programmable Gate Array(FPGA)scheme,this scheme improves the algorithm development efficiency and shortens the algorithm development time.The hardware architecture of the algorithm has been implemented and verified in ZYNQ development platform,and it has important engineering application value.