查询词典 radars

Clutter is connatural condition of signal measuring and processing , which affect the radars detectability and tracking ability of low-altitude target seriously.

杂波是雷达信号检测和处理的固有环境，严重影响了雷达低空目标探测与跟踪的性能。

It is billions of times more efficient and more sensitive than the radars and sonar contrived by man.

它的效率和敏感度比人类制造的雷达和声纳强数十亿倍。

This paper makes an analysis of the Doppler speed charts of clear weather and the echoes of large-area precipitation. It also singles out the Doppler speed charts of typical wind fields. In addition, this paper analyzes Doppler radars detecting process of the strong convection current weather system. It also conducts a thorough analysis of Doppler echo features of some hazardous weather, such as cell storm and downward storms. Based on this research and analysis, the paper reaches some important conclusions concerning the detecting methods using Doppler radar and the analysis of the information gathered by Doppler radar.

本文通过分析晴空和大面积降水回波的多普勒速度图像，归纳总结出了典型风场的多普勒速度图象，并着重分析了多普勒雷达对严重危害飞行安全的强对流天气系统的探测，特别是深入分析了超级单体风暴、下击暴流等灾害性天气的多普勒回波特征，得出了多普勒雷达对灾害性天气进行探测的方法、雷达资料分析应用等方面许多有益的结论。

Recently for the applications such as modern communications, synthetic aperture radars , electronic detect, electronic counterplot, and radar polarmeters, etc., the dual-polarization and polarization-agile functions of antennas are demanded and their optimization designs of systems are required. Their theory and further applications are being in the process of developing.

近年来在现代通信系统、合成口径雷达、电子探测、电子对抗、极化测量等应用中，要求天线具有双极化、变极化功能，而且整个系统需要优化设计，其理论与应用均处于发展之中。

The drone flies autonomously enroute to its patrol area its radar seeker head constantly search for hostile radars.

无人飞行器飞行中自主到它的巡逻区域，它的雷达搜索头不停地寻找敌方雷达。

The characteristics of the ground and sea clutter have some important effects on the airborne PD radars with look-down mode.

地海面杂波特性对主要采用下视工作方式的机载脉冲多普勒雷达具有十分重要的影响。

Using the latest windprofiler radars, together with ozonesonde launches and computer modelling, Hocking et al .

这里，Hocking等人介绍了利用现代化windprofiler雷达、并将它们与频繁的臭氧探空仪发射和计算机模拟结合起来分析平流层臭氧对对流层臭氧可能产生的影响的研究工作。

High effective howitzer s and their layout projects were designed,and frequency conversion radars was used as search and identification of attacking missile.

文中研究了坦克主动防护的基本原理，设计了避免雷达"盲区"的天线和高效榴弹炮及它们的布局方案，并利用了毫米波变频雷达作为搜寻和识别来袭导弹的新技术。

When Sri Lanka needed air defense radars and patrol boats, in a hurry, India came through.

当斯里兰卡需要防空雷达和巡逻船时，立刻，印度提供。

As the sophisticated theory coming and electronic technology developing, radar polarimetry has become a indispensable tool, and polarimetric radars have been applied in several fields such as military, remote sensing, agriculture, hydrology and monitor, and so on.

近年来随着理论的不断完善和电子技术的飞速发展，极化雷达发挥着不可替代的作用，在军事、遥感、农业、水利和监测等方面得到广泛的应用。

Fancy gold-plated dangling earrings with facetted White Opal crystals.

花式镀金悬垂耳环与facetted白欧泊水晶。

This essay chooses the study aim from biology teachers in middle school in Shi Jiazhuang which tells us that most of the middle school biology teachers in Shi Jiazhuang have the"burnout", lower successfulness, individualize.

本文选取石家庄市初中生物教师作为研究对象，运用问卷调查的方法对石家庄市初中生物教师职业倦怠的现状进行调查，调查结果发现，石家庄市初中生物教师这一群体普遍存在职业倦怠，情感枯竭程度偏高，成就感偏低，去个性化程度最为严重。