振幅和差式单脉冲二次雷达幅相不一致分析和改进方案  

Amplitude-Phase Consistency Analysis and Improvement Scheme for Sumdifference Patterns of Amplitude Mono-pulse Secondary Radar

作　　者：邱伟杰 Qiu Weijie(Technical Support Department, CAAC Zhanjiang Air Traffic Management Station, Zhanjiang 524017, Chin)

机构地区：[1]中国民用航空湛江空中交通管理站技术保障部,广东湛江524017

出　　处：《航空科学技术》2018年第3期46-51,共6页Aeronautical Science & Technology

摘　　要：单脉冲二次监视雷达(MSSR)已成为我国空中交通管理(ATM)系统的重要组成部分,不仅具备常规雷达的跟踪定位、目标识别和高度确认功能,同时还具有更快的数据获取速度及更高的测量精度,大大提高ATM的能力。振幅和差式单脉冲测角技术是通过比较和差通道的幅度而得到,因此,雷达接收机的动态范围内其振幅特性和相位特性必须保持一致。但在实际应用系统中,由于雷达零件制造存在公差,部件使用过程中不可避免地会逐渐老化从而引起参数的改变,元器件使用过程因温度变化引发电路失调和失配,以及外界杂波的相互影响等,雷达接收机通道之间幅相不一致难以避免。The Mono-pulse Secondary Surveillance Radar （MSSR） is as an important part of the current Air Traffic Management （ATM） system, not only has tracldng functions as the conventional radar, target recognition and flight altitude measurement, but also faster data acquisition and higher measuring accuracy, it has greatly improved the capacity of the ATM. The technology of measuring angles for sum-difference patterns of amplitude mono-pulse secondary radar is through comparing the amplitude belween the sum channel and the difference one, therefore the amplitude and phase characteristics in the dynamic range of the radar receiver must be consistent. But in actual application systems, it is difficult to avoid due to manutactudng tolerances of components, parameter changed owing to parts aging, circuit imbalance and mismatch caused by temperature changed, and extemal clutter influence.

关 键 词：单脉冲.振幅和差式 高频相移 中频相移 AGC S曲线 

分 类 号：TN957.5[电子电信—信号与信息处理]