doppler velocity 中文意思是什麼

doppler velocity 解釋
多普勒速度
  • doppler : 多普勒效應
  • velocity : n. 1. 迅速;快速。2. 速度,速率。3. 周轉率。
  1. Time intervals in systolic period of cardiac cycle assessment by velocity doppler tissue imaging : characteristic findings in normal subjects

    用組織多譜勒評價左右心室收縮期時間間期
  2. The energy centrobaric method is made use of correcting the doppler spectrum, the simulation predicted value of the target velocity is obtained

    用能量重心校正法對多普勒頻移校正,進而得到物體的運動速度的模擬計算值。
  3. Doppler flow - velocity distributive resolution

    多普勒流速分佈分辨力
  4. The typical velocity field and the pressure on the step surface of the stepped spillway are measured using the laser doppler anemometer and the piezometer tube respectively

    採用多普勒激光測速儀和測壓管分別對階梯溢流壩面典型速度場和階梯表面壓力進行詳細測量。
  5. A doppler radar only measures the component of the velocity in the line of sight, the so - called radial velocity

    因為多普勒雷達探測到的僅僅是風矢量在徑向上的分量。
  6. The wind field retrieval data are obtained by plied muscat technique to transact the rude radial velocity data which were observed by dual - doppler radar volume scans

    該資料是用雙多普勒天氣雷達同步立體掃描數據,通過muscat技術,反演出風場。
  7. First, in order to verify the correct of this retrieval month, by using the data of three - dimensional wind field, raininess field and temperature field that are output by mm5 numerical simulation, we climate the radial velocity field and echo intention field in the in - phase observation area of dual - doppler radar, then, on the base of the upwards retrieval theory and using the radial velocity field and echo intention field in the in - phase observation area of dual - doppler radar, we retrieve the atmospheric three - dimensional wind field

    首先,為檢驗此種反演方法的可靠性,我們使用mm5數值模式輸出的三維風場、雨強場、溫度場等數據,分別模擬生成兩部雷達同步觀測區的徑向速度場和回波強度場,然後根據以上的反演理論利用模擬的雙多普勒天氣雷達觀測到的徑向速度場和回波強度場反演出大氣三維風場。
  8. Because of the presence of the first - order sea echoes with dominant amplitude, the doppler resolution technique which based on the range - velocity transformation is needed to extract the targets information in hf radar

    高頻雷達工作在擁擠的短波波段,由於絕對占優的一階海浪回波的存在,必須採用基於距離?速度譜變換的多普勒頻率分辨技術來處理雜波,以提取目標信息。
  9. The findings show that there exists overlap between macroscale convergence and warm advection if the degree of clock - wise turn dosen " t keep constant on both sides of zero doppler velocity contour about the near range of the observational site. the overlap produces vertical vapor transport and upward convergence movement favorable for formation and continuation of rain gush

    結果表明:零速度帶在測站近距離兩側的彎曲程度不一致是暖平流與大尺度輻合運動的迭加所造成,這一結構為暴雨產生和維持提供了有利的水汽垂直輸送和輻合上升運動。
  10. La dead reckoning algorithm has been developed based on the doppler velocity log ( dvl ) and fiber optic gyrocompass. 2. since the basic kalman filter will become lapsed, strong tracking filter theory has been inducted, and a new strong adaptive kalman filter algorithm has been developed. further more an adjust gene has been imported, and gets a new arithmetic

    針對傳統的卡爾曼濾波演算法中由於噪聲統計特性未知而容易引起的濾波發散的缺點,引入強跟蹤濾波理論,提出了帶次優漸消因子的擴展卡爾曼濾波演算法,並進一步對該演算法進行改善,加入了調整因子,使濾波演算法得到較好的改善。
  11. The main tasks of this thesis are : discussing the dead - reckoning theory of doppler velocity log and compass, decreasing location error methods, emulating several ship tracks ; discussing several aspects influencing the velocity precision of doppler velocity log ; in a pool trial, processing the trial data and achieving some conclusions

    本論文主要研究工作包括:對羅經和多普勒計程儀推算輔助導航系統的工作原理,及減小定位誤差的兩種方法和幾種軌跡進行了研究;對影響多普勒計程儀測速誤差的各個方面進行了綜述;最後對多普勒計程儀水池試驗的數據進行了處理,得出所要結論。
  12. There are two parts in this paper : firstly, a set of single doppler velocity models are presented for typical ambient windfields that include those of being uniform horizontally, macroscale convergence and divergence, which overlap warm and cold advection. which are marked by different signatures in the single doppler velocity field. the models proposed can help users identify useful information from the dopple velocity patterns

    本論文包括兩個部分:第一篇通過對典型風場的單多普勒天氣雷達徑向速度圖象進行模擬,典型風場包括水平均勻一致的風場、非均勻水平風場的大尺度運動的輻合輻散風場以及大尺度運動的輻合輻散風場與冷暖平流的迭加等。
  13. Twin - beam laser doppler velocity system

    雙光束激光多普勒測速系統
  14. For reducing dead - reckoning location error of doppler velocity log and compass, this thesis studies two methods, exponential flatness arithmetic and common flatness, gives the emulating results in the different tracks, proves that lawnmower is a efficient method of decreasing location error

    本文研究了減小推算輔助導航系統定位誤差的指數加權平滑法和一般平滑法,並結合計算機給出了在同一軌跡下,兩種定位方法的區別;並且還給出了不同軌跡下的定位結果,證明了走剪草機軌跡是一種有效的減小定位誤差的方法。
  15. Measuring velocity precision is very important. in this thesis, the author researches on the location precision of doppler velocity log and compass, the precision of velocity precision of doppler velocity log

    本論文就是針對這兩方面而做的,主要圍繞著輔助導航系統的定位精度和如何減小多普勒計程儀的測速誤差進行的。
  16. The top image of doppler velocity indicates opposing winds exceeding 90 kilometres per hour, affecting an area one kilometre across over the eastern part of chek lap kok inset

    上圖顯示多普勒風速,可見在機場東面橫跨一公里的范圍內出現相反的方向,速度達每小時90公里小圖。
  17. The top image of doppler velocity indicates opposing winds exceeding 90 kilometres per hour, affecting an area one kilometre across over the eastern part of chek lap kok ( inset )

    上圖顯示多普勒風速,可見在機場東面橫跨一公里的范圍內出現相反的方向,速度達每小時90公里(小圖) 。
  18. Unmanned underwater vehicle is a useful vehicle, which must be a high accurate and reliable navigation system. doppler velocity log and compass are the assistant navigation system of uuv. researching on their location precision is very necessary

    多普勒和羅經輔助導航系統作為戰時的備用系統,研究其導航定位的精度是不可缺少的,而作為組合導航系統和輔助導航系統組成部分的多普勒計程儀,其測速精度就異常重要。
  19. Study of phased array doppler velocity measurement technique

    相控陣多普勒測速技術研究
  20. Doppler velocity measurement of duplex ammunition

    雙頭彈多普勒測速研究
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