【作者】 严伟星； 严粤飞； 张英驰； 王艳； 王登峰； 踪念科； 王志海； 于坤鹏； 吴文志； 王从思；

【Author】 Yan Weixing;Yan Yuefei;Zhang Yingchi;Wang Yan;Wang Dengfeng;Zong Nianke;Wang Zhihai;Yu Kunpeng;Wu Wenzhi;Wang Congsi;Hangzhou Research Institute,Xidian University;Guangzhou Institute of Technology,Xidian University;School of Information and Control Engineering,Xi’an University of Architecture and Technology;Xi’an Institute of Space Radio Technology;CETC No.38 Rescarch Institute;

【机构】 西安电子科技大学杭州研究院； 西安电子科技大学广州研究院； 西安建筑科技大学信息与控制工程学院； 西安空间无线电技术研究所； 中国电子科技集团公司第38研究所；

【摘要】 基于数字移相器应用在单脉冲测角中伴随的馈相量化误差导致波束的指向偏移这一问题,本文验证了包括就近舍入法、递推补偿馈相法与递推比较补偿馈相法在内的量化方法应用在半阵法测角中波束的指向性能,通过遍历递推的起点阵元,改进了其中的递推比较补偿馈相法,提出了循环递推比较补偿馈相法。结果显示以采用就近舍入法为参照,采用递推比较补偿馈相法与循环递推比较补偿馈相法下波束指向性能的提升分别为59.09%和6 0.3 0%。本文的工作可为工程中数字移相器量化误差的补偿奠定理论基础。更多还原

【Abstract】 According to the problem that Digital phase shifter applied in the monopulse radar is accompanied with the phase quantization error which leads to the pointing deviation of the beam,this paper simulates the pointing performance of the methods including rounding method,shift and compensate phase feeding method and shift compare and compensate phase feeding method in monopulse angle measurement.Based on shift compare and compensate phase feeding method,a new method named loop recursion comparison compensation phase feeding method is proposed by traversing the starting unit of the recursion.The result shows that compared with rounding method,shift compare and compensate phase feeding method and loop recursion comparison compensation phase feeding method achieve an improvement of 59.09% and 60.30% in pointing performance.The work in this paper can lay a theoretical foundation for the compensation of quantization errors of digital phase shifters in engineering.更多还原