您要查找的是不是：
- Passive radar imaging algorithm based on external illuminator requires large accumulated rotating angle of target. 在基于外辐射源的无源雷达成像算法中，获得方位向的高分辨率需要大的目标累积转角，然而在实际系统中，一方面大转角需要时间长，难以满足实时要求；
- This paper studies the performances of GPS signals as the illuminator of bistatic passive radar. 该文研究了GPS卫星信号作为照射信号的双基无源雷达信号性能。
- It is very important for passive radar seekers (PRS) to identify and track one of sources correctly among multi-sources. 因此，被动导引头(Passive-Radar-Seeker，即PRS)正确分辨和跟踪其中一个辐射源尤其重要。
- A passive radar imaging algorithm based on coherent doppler tomography(CDT) imaging(using) multiple illuminators and single receiver is presented. 提出了一种在多发单收模式下基于相干多普勒层析(CDT)成像的无源雷达成像算法。
- Target detection by non-cooperative illumination is currently a hotspot of study in electronic warfare because of its potential advantages in passive radar ECM. 利用非合作照射源对目标探测的雷达具有良好的“四抗”性能,是目前电子对抗研究的一个热点。
- Abstract: A passive radar imaging algorithm based on coherent doppler tomography（CDT） imaging using multiple illuminators and single receiver is presented. 摘 要: 提出了一种在多发单收模式下基于相干多普勒层析（CDT）成像的无源雷达成像算法。
- The passive radar based on external illuminator has many advantages, such as good invisibility, anti-stealth, anti-jamming capability, and it is simple and reliable. 摘要外辐射源雷达系统具有隐蔽性好、反隐身能力及抗干扰能力强、系统简单可靠等优点，近年来受到各国的重视，得到了较快的发展。
- On the bases of theory analysis, using bispectrum estimation of HOS, signal detection and processing system for ultra-wide band passive radar seeker is researched in the paper. 本文在理论分析的基础上，利用了高阶统计量中的双谱变换，对超宽带被动雷达导引头信号检测和处理系统进行了研究。
- Along with the development of radar technology and radar ECM, passive radar has been an important detecting measure of modem air defense information system. 摘要随着雷达技术和雷达对抗技术的不断发展，无源雷达逐步成为现代防空情报系统的一种重要探测手段。
- Passive radars have become an important research area of modern radars for their excellent performance advantages in anti-elint, anti-electronic counter-countermeasure, anti-stealth targets, anti-radiation missile, anti-extra low flight. 无源雷达具有反侦察、反干扰、反隐形、反辐射导弹、反低空突防方面等诸多优势，是现代雷达研究的一个重要领域。
- This paper studies the ambiguity performances of different commercial radio (broadcast, television, mobile communication and satellite) signals as the illuminator of passive radar. 摘要研究了可用于无源雷达照射源的各类商业无线电（广播、电视、移动通信和卫星）信号的模糊函数。
- A new method for passive radar MTD based on fractional correlation is presented by introducing the fractional correlation into the computation of the cross-ambiguity function(CAF). 本文将分数阶相关引入到互模糊函数的计算中,提出了一种基于分数阶相关的无源雷达动目标检测方法。
- Study on Active and Passive Radar Seeker of AAM 空空导弹主被动雷达多模导引头研究
- passive radar based on external emitters 基于外辐射源无源雷达
- passive radar based on opportunity transmitter 机会发射无源雷达
- They picked up the yacht on their radar screen. 他们在雷达屏上看到了那艘游艇。
- He played a passive role in the marriage. 他在婚姻中扮演了一个被动的角色。
- The radar scanned the sky for enemy planes. 雷达密切监视天空，搜索敌机。
- He had a passive expression on his face. 他脸上有一种漠然的表情。
- The watchtower followed the aircraft by radar. 瞭望塔通过雷达追踪这架飞机的行踪。
