关于双曲面单天线双波束比相测高的研究  

A Study on Height Finding by Comparing the phases of Two Beams Radiated by a Single Doubly-Curved Antenna

作　　者：陈乾 

机构地区：[1]南京长江机器制造厂

出　　处：《电子学报》1990年第6期40-46,共7页Acta Electronica Sinica

摘　　要：本文提出了一种比相测高体制——双弯曲面单天线双波束比相测高简易三座标新体制。阐明了双波束相位差产生的原理和计算方法。简析了信噪比对测高精度的影响,对低仰角测高起点和双值问题进行了分析,提出了相应的解决办法。实验证明,该体制简单易行,造价低,测高精度能满足目标指示雷达的要求。A new simple system of 3-D radars-the system of height finding by comparing phases of two beams radiated by a single doubly-curved antenna-is presented. The principle of producing phase difference of two beams and its algorithm are studied. A brief description is given to the effect of S/N on the height finding accuracy. The problems of height finding starting point of low elevations and dual values are analyzed and the corresponding solutions given. The trials of prototypes and the practical tests with aircrafts have proved that the system is feasible and completely fulfils the requirements of indicating radars with targets. This system is simple in structure, easy to realize and low in cost.

关 键 词：双曲面 单天线 比相测高 雷达 

分 类 号：TN958.8[电子电信—信号与信息处理]