高频超视距混合天地波雷达海杂波特点分析  

Analyse of Sea Clutter for HF over the Horizon Hybrid Sky-surface Wave Radar

作　　者：姜维[1] 邓维波[1] 杨强[1] 

机构地区：[1]哈尔滨工业大学电子工程技术研究所,哈尔滨150001

出　　处：《电子与信息学报》2011年第8期1786-1791,共6页Journal of Electronics & Information Technology

摘　　要：采用天波发射、地波接收混合体制模式的高频超视距雷达,由于收发站分置,使得其一阶海杂波谱与单一模式下相比呈现出不同的特点。该文简单介绍了这种混合体制雷达的系统构成和工作原理,针对这种体制特有的几何结构推导了其定位原理,结合这种雷达的电磁波传播路径和收发分置的工作模式,推导了一阶海杂波多普勒频率的理论计算公式,分析了一阶海杂波随不同方位而变化的现象,并通过实测数据对理论分析结果进行了验证。Compared with the single mode radar,because the transmitter and the receiver are separate,the first-order sea clutter of HF over the horizon hybrid mode radar based on sky wave transmitting and surface wave receiving presents different characteristic.This paper introduces simply elementary composing and operating principle of this hybrid mode radar system,considering the particular geometrical configuration of this system,derives its localization principle,combining electromagnetic wave propagating path and bistatic working mode of this hybrid mode radar,derives the theoretical calculation formula of the Doppler frequency of the first-order sea clutter,analyzes the phenomenon that the first-order sea clutter changes with different orientation,as well as verifies the theoretically analyzed result with practical metrical data.

关 键 词：高频超视距雷达 海杂波 方向性 双基地角 

分 类 号：TN958.93[电子电信—信号与信息处理]