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- This paper studies a auto-adapting recombine method for PD radar correlation filter matrix based on FFTU( FFT unit) or MFFTUM ( muhi-FFT unit module). 文中研究一种基于FFTU(FFT单元)或MFFTUM(多FFT单元模块)的PD雷达相关滤波矩阵接收机自适应结构重组方法。
- Doppler beam sharpening (DBS) is an effective technique to construct the high resolution ground images of airborne PD radar in its air to ground mode. 多普勒波束锐化(DBS)已成为机载脉冲多普勒雷达在空/地工作模式中对地面进行高分辨成像的有效途径,因而受到了国内外广泛的重视。
- The validity problem of active multi-decoy to ground base radar system is studied. 摘要研究了有源多假目标等欺骗性电子干扰对地基防御雷达系统的有效性问题。
- The improved PD radar can greatly enhance the aircraft's battle perfor-mance. 此方案的实施,将提高该型PD雷达的性能,扩展其功能,从而极大地提高了其载机的战斗效能。
- They can be ground based or orbiting around the Earth. 望远镜亦可固定在地面或在太空中绕地球运行。
- The detection probability calculating method about low pulse repetition frequency(LPRF) PD radar against air vehicle is studied. 提出了低脉冲重复频率(LPRF)PD雷达探测飞行器目标的发现概率计算方法。
- For HPRF PD radar, the characteristic of echo,is analyzed and how to realize precise measurement of extended spectrum of the target is discussed. 根据高重频脉冲多普勒雷达的特点,分析了在此条件下的目标回波特性,讨论了如何实现高重频脉冲多普勒雷达对频率展宽信号的精确测量。
- To solve the problem of the target s signal located in sidelobe clutters area,the sidelobe clutters of LPRF PD radar is treated as noise. 将旁瓣杂波合理等效为白噪声,处理目标频移落在旁瓣杂波区的情况。
- The design and principle of the instruction guidance frequency synthesizer of one airborne PD radar are described in delail in this paper. 对机载PD雷达指令制导频综器的设计方案和工作原理作了详细阐述,并对制导信号进行了分析和讨论。
- The approach that ravels out the issue is to develop a new sandwich dielectric material, and the material’s characters must be effectively fit to structure of radome of PD radar. 解决这一矛盾的关键是研制出一种新的介质夹层材料,使脉冲多普勒雷达罩材料的电性能与其结构形式有效地匹配。
- Unlike ground based command sites that are vulnerable to attack,the E-4B has the mobility to escape direct assault. 不像易受攻击的地面指挥所,E-4B具有躲避直接攻击的机动能力。
- The input and output carrier of SAW delay line is constant to maintain the coherence of the pulse,which can be well applied for deception jamming in PD radar. 而声表面波延迟线输入输出载频不变,并能始终保持脉冲的相参性,用于PD雷达欺骗干扰,是实用的方案。
- Ground based anti - aerial netted radar 地面防空雷达网
- Ground based anti-air like Bullfrogs and Striker VX's can be taken out if you have numbers on your side. 如果你拥有数量优势的话,地基防空武器如牛蛙和打击者VX之流是可以被消灭的。
- The data sets include the images from Landsat and ERS satellites as well as some ground based soil and plant measurements. 这些数据包括一些实测的土壤和植被的数据以及陆地卫星Landsat和欧洲遥感卫星ERS遥感影像。
- The objective of this thesis is to develop a general obstacle segmentation algorithm for use on board a ground based unmanned vehicle (GUV). 本研究的最终目标是利用建构口腔舌头模型,来研究生理语音构音的机制。
- A Simple Simulation Method for Ground Clutter of Airborne PD Radar 一种简捷的机载PD雷达地杂波仿真方法
- Aircraft with HF datalink can fly polar routes and maintain communication with ground based systems (ATC centers and airline operation centers). 安装有高频数据链系统的航空器能够执行极地航路飞行,并保持与地面系统的联系(如空中交通管制中心和航空公司的运行控制中心)。
- Some Vestian surface features have been resolved using the Hubble Space Telescope and ground based telescopes, e.g. the Keck Telescope. 使用哈柏太空望远镜和地基的望远镜,例如凯克望远镜,一些灶神星的表面特徵已经被辨认出来。
- Discussion on the Ground Base Treatment Alternatives of the Primary Material Yard Along the Yangtze River of Nanjing Steel Co. 南钢江边一次料场地基处理方案探讨。