基于FPGA的单脉冲雷达接收机幅相不平衡校正  

Correction of Amplitude-Phase Imbalance between Sum-Difference Channels Based on FPGA for Monopulse Radar Receivers

作　　者：曾维贵[1] 蔡天一[1] 刘明刚[1] 

机构地区：[1]海军航空工程学院科研部,山东烟台264001

出　　处：《仪表技术》2013年第1期25-27,31,共4页Instrumentation Technology

摘　　要：文章分析了末制导雷达接收机和差通道幅相不平衡对角度误差信号测量的影响,提出了一种数字和差通道幅相失衡校正方法并利用FPGA(Field Programmable Gate Array,现场可编程逻辑阵列)进行了硬件实现。测试结果表明设计的校正系统校正精度高、校正速度快。该校正系统硬件资源消耗小,且不改变雷达接收机系统结构。In this paper, the influence on angle error measurement which is caused by amplitude-phase imbalance between sum-difference channels in a terminal guided radar receiver was analyzed. A digital correction method of ampli- tude-phase imbalance was proposed and realized in FPGA （Field Programmable Gate Array）. The testing results showed that the correction system was very precise and the correction speed was fast. The hardware consumption of correction system was little. And it did not change the receiver structure.

关 键 词：中频接收机 和差通道 幅相不平衡 角度误差 

分 类 号：TN957.5[电子电信—信号与信息处理]