基于时差测量的旋转式被动雷达相位干涉技术  

Theoretical Analysis of Direct-finding Targets with Rolling-airframe Passive Radar by Phase Interference Technique

作　　者：奚玮[1] 俞卞章[1] 汪凯斌[1] 李海宁[1] 王松山 

机构地区：[1]西北工业大学电子信息学院,西安710072 [2]西安导航技术研究所,西安710068

出　　处：《弹箭与制导学报》2007年第2期137-139,147,共4页Journal of Projectiles,Rockets,Missiles and Guidance

摘　　要：比较了旋转式相位干涉仪与一般单基线相位干涉仪优缺点,建立了旋转式被动雷达导引头相位干涉仪的数学模型,推导出目标瞄准线与导弹中心线的夹角检测公式;分析了单基线相位干涉测角模糊的原因并比较了测时差法相对于测相法的优越性;并对旋转式干涉仪的时差检测方法进行了仿真;提出了一种新的利用光纤真延迟技术完成被动雷达导引头的时差测量方法。从而为旋转式相位干涉仪的研制提供了新的技术途径。From the point of positioning principle regard to the passive with rolling-airframe, this article derives a new testing formula for the angle between aim line of target and axis of missile, introduces a measurement method of timedifference by using true time delay with optical fiber. Authors analyze the reason of angle ambiguity phase interferome- ter with single baseline, and also compare the advantage of measuring time-difference method with phase-difference. We simulate the process of the phase interferometer of the rolling-airframe missile. This approach provides a new access to develop and manufacture phase interferometer with rolling-airframe.

关 键 词：旋转弹体 被动雷达 相位干涉仪 时差测量 

分 类 号：TJ765.3[兵器科学与技术—武器系统与运用工程] TN953[电子电信—信号与信息处理]