- 空間向量
- spatial: adj. 1.空間的；在空間中存在[發(fā)生，占有位置]的。 ...
- vector: n. 1.【數(shù)學(xué)】向量，矢量，動徑。 2.【航空】飛機航 ...
- magnitude of spatial vector: 空間向量振幅
- maximal spatial vector to the left: 向左最大空間向量
- mean spatial qrs vector: 平均qrs空間向量
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spatial vector中文什么意思
- 空間向量
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例句與用法
- The paper analyzes the structure of grass ' s vector files and several basic indexes " methods for spatial data . lt also compares the characteristics of the postgis , peegree , openmap , etc . on the other hand , mis paper researches the spatial vector data index arithmetic
除此之外，本課題對于空間矢量數(shù)據(jù)的索引算法進(jìn)行了一定的研究，并詳細(xì)介紹了r樹模型的基本算法，同其他空間索引算法進(jìn)行了一定的比較，簡要總結(jié)了各種算法的基本特征。 - In the paper , the principle and actualizing means of spatial vector control have been systemically discussed and the control software has also been designed . the magnitude of both the rotor flux and the current in torque component have been estimated by using a flux observer , which is developed based on field orientation control principle . the results show that the observer has a good feature due to its speed being calculated without speed sensor or additional hardware
本文對矢量控制的原理、控制方法以及控制實施策略進(jìn)行了較為系統(tǒng)的分析與研究，利用速度間接觀測理論，建立了異步電機的磁通觀測器，電機的定子磁通和電流的轉(zhuǎn)矩分量可以通過磁通觀測器估算出來，從而得到電機的轉(zhuǎn)速，并由此建立了異步電機無速度傳感器矢量控制的理論數(shù)學(xué)模型和相應(yīng)的控制算法，在此基礎(chǔ)之上，利用工程中常用的電機專用dsp芯片tms320lf2407作為處理器，對異步電機進(jìn)行變頻調(diào)速控制。 - The main technical module of processing gis spatial information of land desertification is designed , which can carry out the spatial overlay of vector data in three periods , extract as well as process attributative information and transform the spatial vector data into visualizing data . the gis database of land desertification is established
本研究設(shè)計了土地沙漠化gis空間信息處理的主要技術(shù)模塊，即三期矢量數(shù)據(jù)的空間疊加、屬性的信息提取與處理、空間矢量數(shù)據(jù)向可視化數(shù)據(jù)庫的轉(zhuǎn)化，建立了土地沙漠化gis數(shù)據(jù)庫。