維普勒 的英文怎麼說
中文拼音 [wéipǔlè]
維普勒
英文
viple-
Fires have burnt out more than 800, 000 hectares 3, 000 square miles of bushland in the southern state of victoria - an area the size of cyprus - and on thursday were threatening several towns and a major ski resort
這場大火已經將位於該國南部維多利亞州境內的超過80萬公頃的未開墾森林地區燒成灰燼,這幾乎等同於塞普勒斯的國土面積。Fires have burnt out more than 800, 000 hectares ( 3, 000 square miles ) of bushland in the southern state of victoria - - an area the size of cyprus - - and on thursday were threatening several towns and a major ski resort
這場大火已經將位於該國南部維多利亞州境內的超過80萬公頃的未開墾森林地區燒成灰燼,這幾乎等同於塞普勒斯的國土面積。Figure 16. a, desmoid tumor in a previous scar. b, color doppler scan of a desmoid tumor in a previous scar revealing some vascularity in the lesion
圖16 , a ,以前疤痕處的硬纖維瘤。 b ,彩色多普勒掃描以前瘢痕處的硬纖維瘤病變處顯示一些血管供應。2. the spectrum correcting technique is applied in one dimension distance sidelobe restraining successly and deal with well with this understanding of zero or low doppler frequency and without noise, mussy weaves
2 、在一維距離旁瓣抑制中成功地應用了譜修正技術,在無噪聲、雜波干擾,零或低多普勒頻率情況下,處理效果良好。The specific research methods are listed : 1. matched filter taking the max ouput snr as the best rule correlates nonstop divided signal and divided echo to detect low snr target signal. then all one dimension divided correlation outs and done fft in portrait to leach interferential signal such as static or low rate mussy meaves, many pathway echo and so on and to take target ' s time difference and doppler frequency that combine parameters that target ' s direction taken from antenna and so on to implement target ' s orientation and tracking
具體研究方法如下: 1 、採用以輸出信噪比最大為準則的最佳匹配濾波器來對分段的參考和目標信號作相關處理來檢測低信噪比目標信號,然後對一維分段相關輸出組作縱向傅立葉變換來濾除靜態或低速的雜波、多徑回波等干擾信號,並提取目標的時差和多普勒頻率,再結合由天線獲得的目標方向等參數,就可以實現目標的定位和跟蹤。Diagnosis of breast phyllodes tumor by ultrasonography
乳腺葉狀腫瘤的二維及彩色多普勒超聲診斷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。The main content of this dissertation can be concluded as following : a ) on the base on discussion of sar high resolution and theoretical imaging model, sar signal processing is analyzed in detail. range immigration and estimation of doppler parameters are also involved during discussing space - borne sar imaging and processing. a good result is obtained in the course of processing seasat and x - sar raw data
在討論了sar二維高分辨力機理和sar成像理論模型的基礎上,針對sar成像信號處理,分析成像處理的基本原理,和星載sar成像處理中的距離遷移校正和多普勒參數估計等關鍵問題,編制了處理程序,對seasat , x - sar的原始數據進行了試驗,得到滿意的效果。By modeling of " y " - shaped junction of the compound river channel with an intersection angle 90, the flow velocity and water level at the junction were obtained by use of the acoustic doppler velocimeter ( adv ) and point gauges
摘要通過製作交匯角為90的復式斷面河道" y "型交匯河口模型,利用三維聲學多普勒流速儀( adv )和測針獲取流速及水位數據,對支流河口處的水流流態包括水面形態、水流流速和水流分區進行分析。By using the three - dimension acoustic doppler velocimeter to measure velocities of flow in an ecological river before and after arrangement of cropping loops, the velocity distribution, turbulence intensity and reynolds stress before and after arrangement of cropping loops are compared
摘要採用三維超聲波多普勒測速儀對河道生態修復中種植圈布設前後的工況量測,比較了布設種植圈前後的流速分佈、紊動強度和雷諾應力的變化。Negotiations in preparation for eastward expansion of the european union ( eu ) through admission of ten new applicant countries ? estonia, latvia, lithuania, poland, the czech republic, slovakia, slovenia, hungary, cyprus and malta ? entered their final stage as representatives of current eu member countries and those of the ten prospective ones gathered for discussions in copenhagen from late october to mid december
攸關歐盟東擴的歐盟與申請入會的中東歐十國(愛沙尼亞、拉脫維亞、立陶宛、波蘭、捷克、斯洛伐克、斯洛維尼亞、匈牙利、塞普勒斯及馬爾他)間所進行的協商會議在2002年10月底至12月中於丹京哥本哈根召開並進入最後階段,會中聲明預定2004年1月1日正式接納前述十國為新會員國。Three - dimensional high - density space / time soundings serve as the main body of data consisting of 3 - hr interval doppler probings, 10 - 30 min rainfall intensity, surface raindrop sizes sampling and gps - guided flight cloud physics detections with output taken at 2 - sec and 200 - m intervals. and specific systems associated therewith are developed for multiple - way communication and data collection and storage, a platform for analysis, retrieval softwares for dominant items and multi - scale cloud models - all constitute a system of techniques for meso to microscale observations and analysis. 2 ) atmospheric water resource and macroscopic rainfall properties in dry periods of spring and autumn of the target region
以加密觀測的多普勒雷達、 3小時探空、 10 30分鐘雨強、地面雨滴譜等間隔取樣及在gps引導下的飛機雲物理探測等獲取的三維高時空密度的綜合探測為主體;配合專項設計開發的多路通訊採集存貯系統、多類信息的分析處理平臺、主要觀測項目的分析反演軟體,結合多尺度雲系模式,綜合構成層狀雲系中微尺度探測和分析處理技術方法。Based on the doppler effect and pulse coherence technique, synthetic aperture radar ( sar ) breaks through the azimuth resolution limitation imposed by real aperture antenna. in combination with the pulse compression technique, two - dimensional high resolution imagery to distant targets can be realized
合成孔徑雷達( sar )利用以多普勒頻移理論和脈沖相參為基礎的合成孔徑技術,突破了實孔徑天線對方位向分辨力的限制,與脈沖壓縮技術相結合,實現了遠距離目標的二維高分辨成像。Due to the short distance among the planes which fly in a group, the conventional low resolution radar can not distinguish them in both distance and azimuth ? if we use the technology of isar to resolve the difference among doppler frequency of the targets and obtain a fine resolution cross - cross image, we may separate them, but a long time of coherent processing is needed <, for the formation targets, it can be approximately divided to rigid body and nonrigid body, so for the formation targets, that can be regarded as rigid which has a relative position and an identical movement, can be approximately considered as a large target, and be compensated by translational phase with the rule of minimum entropy, but for the most those cannot accord with the approximation of rigid, being the doppler - frequency of the aim is linear changed, by the relax method with short data, increases the resolving performance of multiple target to the aim in the frequency domain, since cross - range resolution is based on the accumulative time, so it is greatly improve the resolution to formation targets by the instant cross - range image which produced by radon - wigner transformation
低分辨isan成像及干涉技術應用研究一因此直接無法分辨編隊目標的架數,我們借鑒isar的技術,通過較長時間的相干積累,在多普勒頻域上對目標進行分辨。而對于編隊目標,可分為近似剛性的多目標和非剛性的多目標,所以對于可以近似為剛體的編隊目標相對位置固定,運動方式一致,可以近似看作一個大目標,採用最小墑準則對平動相位的進行補償,但是大多數並不滿足剛體近似的編隊目標,由於目標在相干積累時間的多普勒頻率近似呈線性變化,通過對較短數據利用relax的時頻分析方法,提高了頻率域上目標分辨的性能。由於橫向解析度取塊于橫向積累時間,所以利用radnwigner變換得到瞬時的一維橫向距離像大大提高了對編隊目標的分辨,對模擬和實測數據的大量分析結果表明此方法的有效性和可行。The initial field of the model is the in situ observational data. combining the observational data by the doppler weather radar, the distribution and evolution of macro - physical as well as micro - physical variations such as wind field structure, radar echo structure, overhang echo, bound weak echo region, strong echo wall, water content, etc. in the storm were analyzed
利用中國科學院大氣物理研究所建立的完全彈性三維雹雲數值模式,模擬了1996年6月29日發生在北京東北部京冀交界地區的一次強單體雹暴過程,並結合多普勒雷達探測資料,分析了風暴的流場結構,雷達回波結構特徵,含水量場等宏微觀物理量的分佈及其演變。Experimental study on transferring egfp gene into the retina of rat mediated by microbubbles
2腫瘤的三維彩色多普勒超聲成像與病理對照研究The fruits of emulational research are obtained : 1 the method of divided planar correlation deal with wonderfully and can detect the target information of tv sound fm signal about time difference and doppler frequency with this understanding of - 20db snr
模擬研究成果: 1 、分段二維相關處理方法效果不錯,能在- 20db信噪比情況下,可靠地檢測到電視伴音調頻目標信號的時差與多普勒頻率信息。Three - dimensional color power doppler in detecting flow characteristics of ovarian tumors
彩色多普勒能量圖及其三維能量成像在精索靜脈曲張癥診斷中的應用Its high resolution in range is fulfilled by using pulse compression method. its high resolution in azimuth is achieved by utilizing the doppler information among the signals received by sar at different locations. hence, the acquired image of the targets is of very high resolution
它採用距離向的脈沖壓縮技術和方位向不同位置上接收到的脈沖間的多普勒信息來獲得兩維的高解析度,從而得到高解析度的目標圖像。Since cyprus has a veto over that decision, the embargo has stuck
由於(希族)塞普勒斯已經擁有了對此決議的否決權,貿易禁運也已繼續維持。分享友人