Combining with the actuality of highway design, this paper gave a brief talk on the setup of vector digital map in highway design.
结合目前公路设计的现状,浅谈公路设计中数字地图的建立。
Because of their advantages such as small data size, high precision, lossless scaling and easiness to manipulate, vector digital maps are the most important resources in GIS.
其中矢量形式的数字地图由于具有数据量小,精度高,可以无损缩放,便于进行各种操作等优点,是GIS中最重要的资源。
This paper discusses the above problems basing on Husuzhe electric map exploring practices, summarizes the design principle and method of common vector digital map on map design.
本文以沪苏浙电子地图的开发实践为基础,对上述问题进行了探讨,并从地图设计的角度总结了通用型矢量电子地图的设计原理与方法。
TMS320F240 digital signal processor that is selected as the main CPU in the system realizes the full digital vector control system.
论文中选用TMS320F 240数字信号处理芯片作为系统的主控芯片,实现了全数字化的直接磁场定向的矢量控制系统。
A classification method based on Support Vector Machine (SVM) is given in the digital modulation signal classification.
给出了一种基于支持向量机的数字调制信号分类器设计方法。
A parallel arithmetic method for performing digital filtering in parallel computer or vector computer system is put forward in this paper. The calculation is fast and effective.
本文提出在并行计算机或向量计算机上进行数字滤波的一种并行计算方式。这种方式具有很高的处理速度和效率。
Based on the difference expansion and difference shifting, a novel reversible watermarking algorithm for digital vector map is proposed.
利用差分平移和差分扩张,提出一种新的应用于数字矢量地图的可逆水印算法。
This method USES digital image processing techniques to reconstruct the vector of the airplane. Then the pitching, yawing and roll angel are computed.
在终端机中利用图像处理技术重构出机身和机翼的空间向量,计算出无人机的俯仰角、偏航角和翻滚角。
And according to the mathematical model, vector control principle and minimal direct axis current control and its digital realized method were discussed.
结合数学模型,讨论了有关矢量控制的原理和直轴电流最小控制的数字实现方法。
Based on vector control theory, a fully digital variable speed system is designed.
基于矢量控制理论设计了一套全数字变频调速系统。
This paper analyzes the problems in data input of digital map publish especially in vector data input, and indicates the importance of multi-source vector data use.
文中分析了当前数字地图出版中数据输入尤其在矢量数据输入方面存在的诸多问题,指出了多源矢量数据利用的重要性。
This paper studies a test vector generation algorithm for digital circuits which can locate the component faults.
结合一个实际电路,研究了一种可把数字电路故障定位到器件级的测试向量生成算法。
Based on vector control theory, a full digital variable speed system is designed. The system structure and method for designing the software and hardware are introduced.
基于矢量控制理论设计了一套全数字变频调速系统,介绍了系统结构及软硬件设计方案。
Two types of digital negative sequence strainer using vector method and sampling method are researched in this paper.
本文对向量法和采样点计算法两种数字式负序滤过器进行研究。
Besides, Moving vector analysis is introduced to compute the digital curvature of the profile.
采用移动向量法求取轮廓曲线的数字曲率。
All of these two modules achieve unified management and scheduling about remote sensing images, vector maps, digital elevation models and three-dimensional scene data.
这两个模块的结合,实现了遥感影像、矢量地图、数字高程模型以及三维场景数据的统一管理和调度。
To improve the efficiency of automatic maps edge matching of massive digital map data of great regions even global ones, virtual stitching algorithm based on vector ID mapping is presented.
为了改善数字地图图幅自动接边算法在处理大区域甚至全球范围的大数据量图幅接边时效率低的问题,提出了基于矢量id映射的“虚拼接”算法。
Then, by applying this algorithm to the picture after pretreatment, we realize its edge-detection and get vector graphical data. As a result, we solve digital problem of geological contour-map.
然后,对预处理后的图像运用此算法实现了地质等值线图的边缘探测,并得到矢量图形数据,从而解决了地质等值线图件数字化问题。
The more you can do this the less sterile your digital art will be, since vector art runs the risk of looking too good, too clean at times.
你的矢量作品越追求几何上的完美,你的作品就越没有效果,因为看起来太好太干净了,这样也是在冒险有时候。
This paper presents a method which can realize vector control system based on dual digital signal processor. The system structure and method for designing the software and hardware are introduced.
提出了一种基于双数字信号处理器的矢量控制系统实现方案,介绍了系统结构及软硬件设计方案。
Digital watermarking technology is a common scheme to secure the copyright of digital vector map.
数字矢量地图水印技术是一种解决数字矢量地图版权保护问题的常用手段。
Combining with compute technologies, the author puts forward a microcomputer based digital vector voltage measurement sys...
结合计算机技术,提出了微机辅助的数字式矢量电压测量系统的设计方案。
Digital vector map has great economical value and strategy significance for its accurate content.
数字矢量地图的地理信息详实准确,具有巨大的经济价值和战略意义。
Implementation and application of high voltage large capacity synchronous machine with digital vector control.
高压大功率同步机采用全数字化矢量控制方法控制的实现及其应用。
In planar design, the lattice form and vector form of digital figure are as the model the most.
平面设计中的数字图形以点阵形式数字图形和矢量形式数字图形最为典型。
Combining with compute technologies, the author puts forward a microcomputer based digital vector voltage mea...
结合计算机技术,提出了微机辅助的数字式矢量电压测量系统的设计方案。
An all-digital vector control system of three-phase induction motor is presented.
提出了一种全数字式的三相异步电机矢量控制系统。
And its fabricating cost is huge. On the other hand, illegal copying and stealing of digital vector map are becoming increasingly rampant.
同时,数字矢量地图制作成本极高,针对数字矢量地图的非法拷贝、窃取等侵权行为也日益猖獗。
And its fabricating cost is huge. On the other hand, illegal copying and stealing of digital vector map are becoming increasingly rampant.
同时,数字矢量地图制作成本极高,针对数字矢量地图的非法拷贝、窃取等侵权行为也日益猖獗。
应用推荐