查询词典 navigation radar

It is a new-type high-performance radar of meeting the needs of war in the future and national economic development that wideband phased-array radar, It have a very important function in such respects as the formation of goal' image , classify discerning , following of low angle of elevation , counter-jamming and deal with antiradiation missiles.etc.

摘要宽带相控阵是适应未来战争需要和国民经济发展的新型高性能雷达，在目标成像、分类识别、低仰角跟踪以及反干扰，对付反辐射导弹等方面都有十分重要的作用。

The most notable feature is the indigenously developed four-array multifunction active phased array radar Type 348 Radar similar to the Netherlands APAR system.

而052C型则基本基于国内生产的技战设备，这说明了中国已将引自西方及独联体诸国的技术充分吸收并能为自己所用。

The multipath effect is an avoidless problem which the tracking radar and the searching radar among CIWS has to face. This paper analyses the form of the multipath effect on geometry, emphasizes the distance difference between the direct wave and the reflected wave, according to this inherent characteristic, the paper introduces the theory of HRR to the design of radars among CIWS, discusses the spike pulse technology and ultra wide hand technology which often be used, finally proposes the method of time-frequency code to obtain the high range resolution and avoid the multipath effect.

多路径效应是近程反导武器系统中的搜索雷达和跟踪雷达均无法避免的问题，文中分析了多路径效应形成的几何原理，并根据多路径效应中的直射波与反射波具有路程差的固有特性，将高距离分辨率雷达信号理论引入到近程反导武器系统的雷达中，讨论了实现高距离分辨率的窄脉冲和超宽带技术，最后提出了目前较易实现的时间－频率码合成高距离分辨率的办法。

OTH-SW systems diffract radar waves around the Earth along the surface of the ocean, allowing them to travel beyond the traditional radar horizon.

OTH-SW系统沿着海洋表面绕地球衍射雷达波，使雷达波能够在传统的雷达水平线以下传送。

The method of radar optimize embattle and the detection techniques for radar networks are studied in this paper.

本文研究雷达组网优化布站方法和融合检测技术。

Multi radar signal and AIS data can be merging displayed and integrated display radar signal, video map, hydrographical meteorology data and database file of the ship.

可将多雷达信号、AIS数据进行融合显示，并综合显示雷达信号、视频地图、水文气象数据及船舶档案数据。

Netlike Radar System is the trend of radar development at present.

组网雷达是目前雷达发展的趋势。

Non-cooperative bistatic radar plays an important role in Netlike Radar System for its excellent performance.

非合作式双基雷达由于其优良的&四抗&特性，在组网雷达中占有重要地位。

Since the remote distance from radar target and the great variety in modern war fields, the nonintegrity and complexity from radar echoes bring many difficulties for analyzing and recognizing object. So it is the important foundation for us to make optimizing analyse of the scattering echoes.

由于雷达远距离遥感以及现代战场条件下场景复杂多变，使得从目标所获得的信息具有不完整性和多变性的特点，这给进一步的分析和处理带来相当困难，因此对雷达目标散射回波信号的优化分析和处理便成为雷达目标识别系统的重要基础。

Therefore, a polarimetric radar can obtain times of information than a traditional radar.

因此，全极化雷达可以提供数倍于传统雷达的信息量。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48