【作者】 王锦华；

【导师】 石振华；

【作者基本信息】 武汉大学 ， 无线电物理， 2004， 硕士

【摘要】 针对高频地波雷达测试的要求以及目标信息的提取依据，设计应答器来完成雷达定标、多同道接收机校准和回波模拟的任务，同时结合二次雷达的工作原理来实现目标管理的目的。 作为高频频地波雷达的配套器件，应答器的工作方式和雷达密切相关。文章首先分析了雷达回波信号中有用信息提取方式，给出了模拟回波信号的实现方案；然后从应答器的作用出发，分析了应答器结构，给出了各部分的具体设计。 文章详细说明了延时、信号标志和系统同步控制的设计，介绍了设计实现采用的器件的原理和器件结构，说明了设计中应注意的问题。给出了仿真和实测结果并对其进行分析；在最后讨论了应答器的发展方向和用作二次雷达的可行性。更多还原

【Abstract】 According to the requirement of high frequency ground wave radar’s test and the extraction reference of target information in HF ground wave radar, a responder is designed to complete the tasks of radar scaling, multichannel receiver calibration, echo simulation, and target management combining with the secondary radar’s work principle.As a device match of the high frequency ground wave radar, the responder’ working is correlating with the radar. The paper introduces the method of the HF ground wave radar to pick-up the usable information, gives the detailed scheme to obtain the simulant echo. Bottom on the responder’s function, the article analyses the structure of responder, gives the design of circuit.The designs of echo delay, signal modulating, and the synchro controller are explained as the emphases. The devices’ theory, structure, and the problem must be pay attention to are expounded. The simulation and the measured results are proposed. Finally, the development of responder and the feasibility of using responder as secondary radar are discussed.更多还原