雷從改 的英文怎麼說
中文拼音 [léizònggǎi]
雷從改
英文
cong-gai lei-
In the light of the pulse width of the radar wave, this paper deals with the difference and the relationship between the vertical resolution and the transverse resolution of the ground - penetrating radar, indicates the influence of the noise upon the resolution and, with practical examples, points out that the digital handling of the signal can greatly improve the resolution of the radar
摘要從雷達波脈沖寬度出發，闡述垂直解析度與橫向解析度的區別和相互關系，並同時指出噪音對解析度的影響，用實例說明訊號的數字處理能大大的改善解析度。Through the effort that the reform opens more than 20 years, many tour cities of china contain substantial development, but because of being limit by the various factors, the tour image of the city is not fresh and clear, also being tend in in travel the item development similar, this turn the faintness that the ineluctability causes the city travel the image, thus losing the competition ability. how set out from the oneself characteristics, mold the fresh and clear city tour image, become the chinese city tour development to need the problem for resolve in the day. the strand of harbin is a tour destination that has to develop the potential, the ice snow stanza contain international popularity, the festival and meetings travel certain advantage of the market occupancy, can integrate with whole packing of other winters tour item to carry on the market publicity
經過改革開放20多年的努力，中國許多旅遊城市有了長足的發展，但由於受旅遊資源特點、區位條件、旅遊配套設施等多方面因素的限制，城市的旅遊形象並不鮮明，在旅遊項目開發上也趨于雷同，這將不可避免的導致城市旅遊形象的模糊化，從而喪失競爭力。如何從自身特點出發，塑造鮮明的城市旅遊形象，成為中國城市旅遊發展中亟待解決的問題。哈爾濱是一個具有發展潛力的旅遊目的地，冰雪節有國際性的知名度，節慶和會議旅遊市場佔有一定的優勢，可以與其他冬季旅遊項目整體包裝整合進行市場宣傳。7 in order to improvement the performance of the whole system and reduce the cost, a new signal processor is given, which based on the new pulse count method brought forward by the author
從系統聯調的測試結果可以看出，利用自適應檢波電路，可以大大改善基於脈沖計數新方法的雷達信號處理機的性能，使得雷達系統的測距精度大大提高。The research result demonstrates that along with the increment of reynolds number, the root mean square value of outer fluctuating magnitude of the external diameter in fall frequency band increases, the root mean square value of fluctuating magnitude of the external diameter in high frequency band decreses, demonstrating that the fluctuation of flexible pipe wall changes fluctuation don field of original rigid pipe, large - size eddy motion increases and small - size eddy motion decreases, this reduces energy loss and increases friction reduction effectiveness
研究結果表明：隨著雷諾數的增加，全頻帶的外徑脈動的均方根值加大，但高頻帶外徑脈動的均方根值減小，說明柔性管管壁脈動確實改變了原剛性管的脈動流場，大尺度渦的運動加劇，低尺度渦運動減弱，從而使得能量損失減少，減阻效果增大。The radar which is embedded on platform sidelooking, but the platform will be disturbed by airflow inevitably. so, the radar will have a small sloping angle, thereby, the doppler centroid that is not zero and doppler frequency rate need to be estimated from the raw echo data in order to focus in azimuth commendably
場景成像的合成孔徑雷達一般是正側視放置，但是載機不可避免的要受到各種擾動影響，雷達會有一定的斜視角，從而導致了多普勒中心頻率不為零，多普勒調頻斜率也隨著雷達斜視角改變。There must be a marine casualty happened every 4 days before 1984, the amount of marine casualty happened at this area corresponds to 1 / 7 amount of the whole changjiang " marine casualty, so mariners gave it a name as " mouth of tiger ". due to the specific geographical condition and the extremely representative vessel traffic management of changjiang yingongzhou channel section, many intelligent people began researching and practicing the vessel traffic management of this changjiang " s down - stream complicated channel section from 1980s, at dec 15th 1984 the authority at that time - changjiang yingongzhou channel section previously ; up to the last years of 1980s ministry management administration applied traffic control on changjiang yingongzhou channel section previously, up to the last years of 1980s ministry of communications assigned shanghai marine college, shanghai ship & shipping research institute and changjiang harbor superintendence administration to make feasibility demonstrate about modern vts of zhenjiang traffic control section ; in 1990 dasha radar station which is the first radar vts station with inner river was finished, groped a new way for applying modern radar traffic control of vessel traffic management ; in 1997 the vtms of changjiang " s down - stream from nanjing to liuhekou was completed with connecting net and came into operation formally, meanwhile the signals of dasha radar station were conveyed to vts center by light cable, and then united applying vessel traffic management upon the whole authorized area ; in jun 2001 jiangsu msa made changjiang yingongzhou channel section as the first experimental group of creating " civilized, safe, passable channel activity, updating dasha radar antenna and receive - transmitter building closed - circuit television monitor system, setting uo safety warning board, starting navigational route reformation, carrying out united construction
1984以前這里平均每四天就發生一起海損事故，事故數占整個長江的1 7 ，被行船人稱為「老虎口」 。長江尹公洲航段緣其極為特殊的地理區位條件和極具代表性的船舶交通管理，從上個世紀八十年代初就有識之士開始了這個長江下游最復雜航段的船舶交通管理探索和實踐。 1984年11月15日當時的長江航政管理局在長江尹公洲水域率先施行交通管制；到八十年代末交通部委託上海海運學院、上海船舶研究所和長江港監局聯合開展鎮江交通管制段建立現代化交管系統的可行性論證； 1990年大沙雷達站? ?內河第一座雷達交管站建成，摸索實施現代化雷達交管的船舶交通管理新途徑； 1997年長江下游南京至瀏河口船舶交通管理系統建成聯網投入正式運行，同時將大沙交管雷達信號通過光纜傳輸至交管中心，統一實施全轄區船舶交通管理； 2001年6月江蘇海事局將長江尹公洲航段作為第一批創建「文明平安暢通航段」活動試點航段，更新大沙雷達天線和收發機，著手閉路工業電視監控系統建設，設立安全警示牌，啟動航路改革，開展聯合「共建」 。In order to get the optimal wavelength pairs for two - color satellite laser ranging, with the factors including atmosphere effect, the response of the receiver and the laser considered, beginning with the precision of atmosphere correction, based on the lidar equation, the wavelength figure of merit, which can determine whether the pair is selected properly, is obtained
摘要為獲得雙波長衛星激光測距的最佳波長組合，考慮了大氣效應、接收光電器件的響應、激光器等因素，從大氣改正精度出發，利用激光雷達方程，得到了評價波長組合優劣的波長優數公式。Guided by the regularity of model education, the paper undertakes a thorough analysis and comparison between activities of learning from lei feng in nineteen sixties and actions of foreign volunteers. based on the full and accurate data collected through online inquiry, questionnaire investigation and depth interview etc., it analyses the current situation of model education in our country, points out problems that need to be solved such as the substitution of pluralistic value orientation with the single value orientation, insufficiency of meeting with masses " demands fully, the loss of principal status of model education, and manners and methods of model education that need to be further improved etc. moreover, it proposes suggestions on how to let model education play a better role, including that model education must be people oriented, plain and lasting, interest guided, and must bring collectivism education and self - education into full play etc
本文從對榜樣教育、觀察學習、模仿等相關概念的辨析入手，通過對榜樣教育的過程和條件的分析把握榜樣教育的規律，並用榜樣教育的規律作指導對六十年代學雷鋒活動和國外志願者行動進行了較為透徹的分析和比較，在通過網上查詢、問卷調查和深度訪談等方式取得翔實資料的基礎上，分析了我國榜樣教育的現狀，指出了我國目前榜樣教育存在著用單一的價值取向代替多元化的價值取向、沒有充分滿足群眾的需求、榜樣教育的主體地位有所失落和榜樣教育的方式方法有待進一步改進等問題，並就如何更好地發揮榜樣教育的作用提出了榜樣教育應以人為本、應平實而持久、應以利益引導為基礎及應充分發揮群體教育和自我教育的作用等見解。For the electronic proving ground reality, the advantages and shortcomings of several evaluation criteria are synthetically compared through studing jamming and antijamming effects between oppressive jamming and the target search radar. according to the ultimate effectiveness criterion, the method of using the tactics and technology indices to evaluate the radar jamming and antijamming effects in quantity is discussed. the quantitative grade judgement on jamming and antijamming effects are presented
從電子裝備試驗靶場的實際出發，通過研究壓制性干擾對目標搜索雷達的干擾，以及後者對前者的抗干擾效果，綜合比較了幾種評估準則的優劣，依據最終效果準則，分別論述了用技術指標和戰術指標定量評估雷達干擾抗干擾效果的方法，提出了干擾抗干擾效果的定量等級評判，並通過信干比、抗干擾改善因子，將戰術、技術指標評估統一起來，二者在實質上是等效的。Based upon the above analysis, the author made a historical analysis of manufactory code supply, described the institution evolution of the bar code and reached the conclusion that there exists market failure for the bar code - there being no stimulation, based on the practice of article numbering center of china and the view of public goods supply and public department, this thesis put forward some approaches in supply efficiency enhancing of our country ' s article numbering organization on the point of promoting internationalization level in goods code in our country
以公共品供給理論和公共部門理論為指導，結合我國編碼組織的工作實踐，從促進我國商品標識國際化水平的角度提出改進我國商品編碼組織供給效率的有效途徑，指出將成本分擔與年產值關聯起來實行以年產值為基礎的二部收費法在一定程度上能夠解決商品條碼系統成員之間搭便車的現象，因而具有帕雷托改進的性質。最後分析了商業模式演變、產業結構和體制環境對我國編碼組織的影響。Some valuable conclusions are summarized by theoretical analysis and simulation experiments : from the side of signal processing, pulse jamming can be deleted by the method of time - domain sliding window accumulation and can be restored by interpolative prediction. ; gauss white nose can be attenuated while jamming disperse point - target by the method of time - frequency analysis in time - frequency domain. ; radio frequency noise jamming can be deleted by the method of average range frequency spectrum and notching in frequency domain
通過大量的理論分析和模擬實驗，得到了一批具有一定價值的結論：從信號處理的角度出發，對于脈沖式干擾，能夠運用時域滑動窗口積累的方法去掉，並且通過預測插值得到較好的恢復；對于高斯白噪聲干擾，在時頻變換域內應用時頻分析方法可減小其對分散點目標的干擾；對于射頻噪聲，通過平均距離頻頻法和頻域陷波的方法可以去掉；從改變合成孔徑雷達系統角度出發，類似雙基地雷達能夠避免各種干擾，對發射信號進行調幅，調相以及改變調頻斜率都是較好的抗干擾方法。In the first part of paper, we introduce the appliance of doppler weather radar in meteorological work in the near future, and simply enumerate all kinds of adjoint methods to retrieve data of radar. in the second part of paper, we choice some methods that are usually used domestically and overseas, compare excellence and flaw of the methods by using data of simulate wind field, analyze synthetically the precision of simulate result, the length of retrieval time and the structure of data distributing, lastly decide to regard ameliorated quasi - 4d adjoint method as retrieval technology in the paper. in the third part of paper, we retrieve the data of single doppler weather radar in hefei, anhui province, then calculate 3d wind field, streamline field, divergence, vorticity, helicity, moisture flux, divergence of moisture flux and potential vorticity from the result of retrieval
文中第一部分對近年來多普勒天氣雷達在氣象工作中的應用作了介紹，同時簡單的羅列了反演雷達資料的各種變分方法；接下來在第二部分選取了幾種國內外常用的反演方法，利用模擬的風場資料比較各種方法的優缺點，從模擬結果的精度、反演時間的長短、資料的分佈結構上綜合分析，最後決定將已做改進的準四維變分分析方法作為本文的反演工具；第三部分就是反演安徽合肥多普勒天氣雷達資料，然後由反演得出的風場計算了各個時間各個層次的三維風速、流場、散度、渦度、螺旋度、水汽通量、水汽通量散度和位渦。Highway landscape is one new branch of science being on the rise in chinese traffic industry this year, and having become popular discipline, the extensive highway builder understand highway landscape is fairly insufficient, the main body of a book is analyzed by the fact that the landscape that kaili comes across till lei shan county highway reorganization and expansion in process builds a problem ' s to guizhou province but from that highway landscape develops status in the homeland at present coming, set forth highway landscape and due relation of environment all around, sum up mountain area highway landscape design method, build for our country mountain area highway landscape providing a reference
摘要公路景觀是近幾年在中國交通行業興起的一門新興學科，並越來越成為熱門學科，但從國內目前公路景觀發展現狀來看，廣大公路建設者對公路景觀的認識還不夠，通過對貴州省凱里至雷山公路改擴建過程中遇到的景觀建設問題藥分析，闡述公路景觀與周邊環境應有的關系，總結山區公路景觀設計的方法，為我國山區公路景觀建設提供參考。" since i signed with the galaxy, i ' m trying to get myself to say soccer because i ' ve always said football, " he said in june, after filming a commercial with new orleans saints running back reggie bush
他6月與新奧爾良聖徒隊的跑鋒雷吉布希拍完一個廣告后說， 「自從我與銀河隊簽了合同，我就一直在努力地讓自己改口說soccer ，因為我過去一直都是說football 。 」" since i signed with the galaxy, i ' m trying to get myself to say soccer because i ' ve always said football, " he said in june, after filming a commercial with new orleans saints running back reggie bush. " it would seem like soccer would be the sport you actually call football because you ' re kicking it with your foot, " bush said
他6月與新奧爾良聖徒隊的跑鋒雷吉布希拍完一個廣告后說， 「自從我與銀河隊簽了合同，我就一直在努力地讓自己改口說soccer ，因為我過去一直都是說football 。 」Then on one hand, author makes researches of anti - jamming against pulse jamming 、 gauss white noise jamming and radio frequency noise jamming from the side of signal processing. author exercises much signal processing knowledge of time - domain sliding window accumulation 、 wavelet analysis 、 time - frequency analysis and linear prediction and carries out many simulation experiments. on the other hand, author proposes the anti - jamming methods of using a sar similar to double - base radar and modulating the amplitude 、 the phase of emission signal and changing the frequency modulation slope from the side of changing sar system model
作者首先提出了合成孔徑雷達抗干擾的定義、分類以及評價抗干擾方法好壞的主客觀標準；然後，一方面從信號處理的角度出發對脈沖式干擾、高斯白噪聲干擾以及射頻噪聲干擾進行了抗干擾研究，其中運用了時域滑動窗口積累，小波分析，時頻分析以及線性預測等信號處理知識，做了大量的模擬實驗；另一方面，本文基於改變合成孔徑雷達系統模式提出了利用類似雙基地雷達來抗干擾，以及對發射信號進行調幅、調相以及改變調頻斜率來抗干擾，同樣做了相應的模擬實驗。Transport minister dr stephen ladyman said britain had joined in the pledge because better road safety across europe also benefited britain. he said : " more and more british people are travelling overseas for work or pleasure, so road safety throughout europe translates into benefits for the uk traveller
英國運輸大臣史蒂芬雷迪曼表示： 「現在有越來越多的英國人到國外去工作或旅遊，所以如果歐洲大陸的道路安全狀況大有改觀的話，那麼英國旅行者同樣會從中受益匪淺。分享友人