查询词典 navigation radar

The dynamic precision adjusting shipboard radar based on differential GPS is proposed in this paper,algorithm of conversion GPS-80 coordinate into distance and bearing of target relative with shipboard radar is given.

提出了一种基于差分GPS技术的舰载雷达动态标校方法，给出了根据大地坐标计算目标真值的算法；设计了一种舰载搜索雷达与跟踪雷达之间同步测量和适用于海上活动平台多传感器之间动态标校的数据处理方法；海上实践表明，这种方法具有精度高、实时性强的特点。

Climatic feature of hail is introduced., Using the data of 711 radar echoes , rawinsonde and hail shooting observations from 1988 to 1997 in delta region of the Yellow River, the radar echo parameters and ambient field elements of hailcloud are analyzed statistically.

介绍了冰雹的气候特征，利用黄河三角洲地区1988-1997年的711雷达回波、降雹资料及有关的高空探测资料，对冰雹云的雷达回波参数和环境场要素进行了统计分析。

Interferometric Synthetic Aperture Radar is one of the most important part in the field of Synthetic Aperture Radar.

合成孔径雷达干涉测量是合成孔径雷达领域诸多应用中的一个重要方面，能够全天候、全天时地提供高分辨率的雷达图像，是目前获取三维数字高程模型最有效的技术手段。

ABSTRACT Synthetic Aperture Radar imaging is an important evolvement in modern radar technology, which plays a key role in both milit...

机载合成孔径雷达成像是现代雷达技术的一项重大发展，它在军用和民用领域都发挥了重大的作用，在国内外都受到相当程度的重视。

However, the latter more complicated, contrasted between radar data and routine observatory data. It can be seen that the classification of the storm rainfall echo according to 850hPa effective system is more ideal, the storm rainfall echo is classified into storm rainfall of trough and storm rainfall of shear line, while storm rainfall of shear line includes storm rainfall of warm shear line and storm rainfall of cold shear line, and their radar echo features are investigated. It is shown that different storm rainfall style is distinct clearly on the echo structure and feature.

而伴有低空急流暴雨的回波特征较复杂，通过对雷达资料及常规观测资料的对比分析，发现利用850hPa的影响系统对暴雨回波分类比较理想，将暴雨过程分成低槽暴雨和切变线暴雨回波两类，切变线暴雨又可以分为冷式切变线暴雨和暖式切变线暴雨，分别分析、研究了不同类型暴雨的多普勒天气雷达回波特征，结果表明不同类型暴雨的回波结构和特征具有明显的区别。

In Chapter 2, description on the FMCW radar principle and the schematics of level radar are presented.

论文之第二章叙述频率调变连续波雷达的基本原理，与液面雷达的电路规划。

The results show that the simulated track of Bilis has about 39% and 16% improvement averaged during the 72 h forecasts after the assimilation of dropsonde and QuikSCAT data, respectively. The simulation of radar reflectivity is also improved. Similarly, the simulated track of Kaemi is improved by 26% and 21% by assimilating dropsonde and QuikSCAT data, respectively. However, the data assimilation appears to have no improvement in terms of radar reflectivity simulation for the Kaemi case.

结果显示，碧利斯台风在加入投落送资料与QuikSCAT资料后，对模拟6至72小时的平均路径误差除分别有52 km及16 km的改进外，对雷达回波强度之模拟也有所改善，而凯米台风在加入上述两种资料后，对模拟路径误差之整体改进则分别达到71 km及42 km；6月中旬梅雨锋面个案同化该两种资料后之雷达回波模拟强度也有所改善，而与观测较为接近。

Due to improved navigation system,it is a common thing to fly in a fog and a violent storm.

由于改进了导航系统，所以在大雾和狂风暴雨中飞行早已成常事。

In the draught of fact demands, the application of fault diagnosis become more and more abroad, has filted into the Mechanics and Electronics system, Industry Automatization system, computer system, and all kinds of dynamic system in abroad way, including abjection identify system, combination navigation system and so on from traditional machine system and electron system.

在实际需求的牵引下，故障诊断技术的应用越来越广泛，论文网，已经从传统的机械系统和电子系统，渗透到机电一体化系统、工业自动化系统、计算机系统，以及各种广泛意义上的动态系统，包括目标识别系统、组合导航系统等。

In the draught of fact demands, the application of fault diagnosis become more and more abroad, has filted into the Mechanics and Electronics system, Industry Automatization system, computer system,发表论文, and all kinds of dynamic system in abroad way, including abjection identify system, combination navigation system and so on from traditional machine system and electron system.

在实际需求的牵引下，故障诊断技术的应用越来越广泛，已经从传统的机械系统和电子系统，渗透到机电一体化系统、工业自动化系统、计算机系统，以及各种广泛意义上的动态系统，包括目标识别系统、组合导航系统等。

You can snipe the second and third union leaders from this position.

您可以鹬第二和第三工会领袖从这一立场出发。

Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.

针对当前XML数据流质量检测存在的不足，提出构建XML键的矢量矩阵作为窗口，利用矢量积小波变换多级分解与重构XML数据流，再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法，满足XML数据流质量重构时实时检测的要求，保证XML数据的约束性、一致性与完整性；为了更好的适应网络负载，采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。