近回波 的英文怎麼說

The various colours significant of various degrees of vitality white, yellow, crimson, vermilion, cinnabar : their degrees of brilliancy : their magnitudes revealed up to and including the 7th : their positions : the waggoner s star : walsingham way : the chariot of david : the annular cinctures of saturn : the condensation of spiral nebulae into suns : the interdependent gyrations of double suns : the independent synchronous discoveries of galileo, simon marius, piazzi, le verrier, herschel, galle : the systematisations attempted by bode and kepler of cubes of distances and squares of times of revolution : the almost infinite compressibility of hirsute comets and their vast elliptical egressive and reentrant orbits from perihelion to aphelion : the sidereal origin of meteoric stones : the libyan floods on mars about the period of the birth of the younger astroscopist : the annual recurrence of meteoric showers about the period of the feast of s. lawrence martyr, 10 august : the monthly recurrence known as the new moon with the old moon in her arms : the posited influence of celestial on human bodies : the appearance of a star 1st magnitude of exceeding brilliancy dominating by night and day a new luminous sun generated by the collision and amalgamation in incandescence of two nonluminous exsuns about the period of the birth of william shakespeare over delta in the recumbent neversetting constellation of cassiopeia and of a star 2nd magnitude of similar origin but lesser brilliancy which had appeared in and disappeared from the constellation of the corona septentrionalis about the period of the birth of leopold bloom and of other stars of presumably similar origin which had effectively or presumably appeared in and disappeared from the constellation of andromeda about the period of the birth of stephen dedalus, and in and from the constellation of auriga some years after the birth and death of rudolph bloom, junior, and in and from other constellations some years before or after the birth or death of other persons : the attendant phenomena of eclipses, solar and lunar, from immersion to emersion, abatement of wind, transit of shadow, taciturnity of winged creatures, emergence of nocturnal or crepuscular animals, persistence of infernal light, obscurity of terrestrial waters, pallor of human beings

顯示出不同程度之生命力的繽紛色彩白淺黃深紅朱紅銀朱諸星之亮度一直包括到七等星以等級標志的諸星之大小諸星的位置御夫座沃爾辛厄姆路172大衛的戰車173土星光環螺旋星雲凝固后形成有衛星的恆星群兩重大陽相互依存的旋轉運動伽利略西蒙馬里烏斯174皮亞175勒威耶赫歇耳加勒176等人各自獨立地同時所做的發現波得和開普勒所嘗試的距離的立方與回轉次數的平方的體系化177多毛的眾彗星178那幾殆無限的被壓縮性，以及自近日點至遠日點那廣漠的遠心的重返大氣層的橢圓軌道隕石的恆星之起源年紀較輕的天體觀測者誕生的那個時期火星上所出現的「暗波」現象179每年在聖勞倫斯節殉教者，八月十日前後降落的隕石雨每月都發生的所謂「新月抱舊月」現象180關于天體對人體的影響的假定威廉莎士比亞出生的時期，在斜倚卻永不沒落的仙后座那三角形上端，一顆不分晝夜散發著極亮光彩的星辰一等星出現了181這是兩個無光死滅了的太陽因相撞並汞合為白熱體而形成的燦爛的新太陽大約在利奧波德布盧姆出生時，出現在七星花冠星座里而後又消失了的一顆同一起源亮度卻稍遜的星宿二等星182還有約於斯蒂芬迪達勒斯出生時，出現在仙女座中之後又消失，小魯道爾夫布盧姆出生與夭折數年後出現于御夫座后又消失，以及另外一些人出生或去世前前後後出現在許許多多其他星座中而又消失了的假定是同一起源的實際存在或假定存在的星斗183 。

But the latest doha setback ? a failed ministerial summit between the round ' s self - styled leaders, america, the eu, india and brazil, in potsdam on june 21st ? had less to do with rich - world rigidity than indian indifference and brazilian brinkmanship

但是最近的多哈回合的挫折? ?美國，歐盟，印度以及巴西6月21日在波茨坦市（舉行的）自封的領導們之間的部長級峰會? ?是談論印度的冷淡態度和巴西的邊緣性政策多於處理富國的強硬政策。

But though he believed so implicitly that he was king of naples, and sympathised with his subjects grief at losing him, after he had been commanded to return to the service, and especially after his interview with napoleon at danzig, when his most august brother - in - law had said, i have made you king that you may rule in my way, and not in your own, he had cheerfully resumed his familiar duties ; and, like a well - fed, but not over - fed stallion feeling himself in harness, prancing in the shafts, and decked out in all possible motley magnificence, he went galloping along the roads of poland, with no notion where or why he was going

盡管他堅信他是那不勒斯王，對即將與之離別的臣民的悲傷覺得抱歉，但最近，在他奉命又回軍隊之後，特別是在丹澤ohisut見到拿破崙之後，當至尊的舅子對他說： 「 je vous ai fait roi pour rgner ma manire ， mais pas la voatre 」 ，他愉快地從事起他熟悉的事業，像一匹上了膘，但卻長得不太肥的馬，感到自己被套起來，在車轅中撒歡，並打扮得盡可能的華貴，歡歡喜喜，得意洋洋地沿著波蘭的大道奔跑，而自己卻不知道何處去和為什麼。

High frequency ground wave radar for near ocean inspection and ocean remote sensor is a method that use ocean echo wave dopier spectrum to deduce the parameters of ocean situation

高頻地波雷達近海監測和海態遙感技術是一種利用海洋回波多普勒譜反演海態參數的方法。

Based on consider hereinbefore, this dissertation discusses several aspects on the problem of the sustainable and optimum exploitation of groundwater resources as follows : ( 1 ) reviewed entirely the origin and evolvement of the concept " sustainable development ", stated and commented the study status in queue on " sustainable development " around national and international range, thorough discussed the science connotation about the concept " sustainable development " ; ( 2 ) looked back and commented across - the aboard some furthest basic concept and proposition related to groundwater resources, put forward self opinions on a few existent mistake points of view and chaos understandings ; ( 3 ) expatiated entirely on the content and meaning of the theory of changeable groundwater resources system, contrast with the traditional methods of groundwater resources calculation and evaluation, combined example to show the application of this theory ; ( 4 ) thorough analyzed the difficult and complexity to forecast the groundwater resources, fully stated the traditional methods of groundwater resources forecasting, pointed out the characteristic and applying condition of these forecasting method, introduced the main ideas and methods of wavelet analysis developed recently, and the matlab software be known as the fifths era computer language, and its accessory wavelet analysis toolbox, applied these methods and tools to analyze the groundwater dynamic curve, adopted the b - j method and morte - carlo method, combined with the theory of changeable groundwater resources system, discussed the new view on the forecast of groundwater resources ; ( 5 ) synthetically analyzed the characteristics and limitations of the present all kind of groundwater manage model, combined mathematical programming mathematical statistics random process and the theory of variation system of groundwater resources on the unite optimum attempter of surface water and groundwater, emphasized how to make the model more nicety, more simple, more practicality ; ( 6 ) analyzed the inside condition and outside condition to assure the sustainable and optimum exploi tation of groundwater resources, the inside conditions are the follows : correct resources idea, scientific methods of resources calculation and evaluation, credible forecast methods of resources, exercisable measures of resources management, the outside conditions are the follows : the development idea of high layer, the transform of manage system, the matched policy and rule of law, the adjusted of economy lever, the improve of cultural diathesis, the boosting up of water - saving consciousness and detail measures, the control of population rising, the prevention and cure of water pollute, the renew and rebuild of ecology ; ( 7 ) scan the sustainable and optimum exploitation of groundwater resources from the high level of metagalaxy, earth system science, and philosophy ; lint out the more directions on groundwater resources

基於以上考慮，論文主要從以下幾方面對地下水資源可持續開發問題進行了比較深入的探討：全面回顧了「可持續發展」概念的由來與演變，對國內外「可持續發展」的研究現狀進行了述評，並對「可持續發展」概念的科學內涵進行了深入探討；對涉及地下水資源的一些最基本的概念和命題進行了全面的回顧和評述，對目前仍然存在的一些錯誤觀點和混亂認識提出了自己的見解；全面闡述了地下水資源變值系統理論的內容和意義，並與傳統的地下水資源計算評價方法進行了對比分析，結合實例具體說明了方法的應用；深入分析了地下水資源預測預報工作的極端重要性和復雜性，對傳統的地下水資源動態預測方法進行了全面的評述，指出了各類預測預報方法的特點及適用條件，對最近二十多年剛發展起來的小波分析技術的主要思想和方法及其應用范圍，以及號稱第五代計算機語言的matlab軟體和附帶的小波分析工具箱進行了介紹，並應用於地下水動態過程線的分析，採用時間序列中的b ? j法，蒙特卡羅方法，與地下水資源變值系統理論相結合，探討了地下水動態資料分析和地下水資源預測預報的新思路；綜合分析了現今各類地下水管理模型的特點及缺陷，將數學規劃、數理統計、隨機過程等與地下水變值系統理論相結合進行地表水地下水或多水源的聯合優化調度，使模型更準確、更實用；對保證地下水資源可持續開發的內部條件和外部條件進行了分析，內部河海人學博卜學位論文前言、摘要、目錄條件主要是正確的資源觀，科學的資源計算與評價方法，可靠的資源預測預報技術，可操作的資源管理措施，外部條件主要是高層發展思路、管理體制的變革、配套的政策法規、經濟杠桿的調節、人文素質的提高、節水意識的增強及具體節水措施、人口增長的控制、水體污染的防治、生態的恢復和重建等;從宇宙科學、地球系統科學及哲學的高度審視地下水資源的可持續開發;指出了地下水資源可持續開發的進一步研究方向。

The master dissertation introduces passive correlative orientation system and base theory in signal dispose briefly in the first place. the system takes tv sound fm signal from tv satation signal. the power rate of tv station signal to sound signal is ten to one. in the case of submerged by mussy weave and machine ' s hot noise, dispersed target signal is feeble

系統採用電臺的電視伴音調頻信號，其中電臺信號與伴音信號功率之比基本為10 ： 1 ，並且目標散射信號較弱，一般情況下淹沒在雜波和機器熱噪聲之下，採用常規的脈沖檢測方法很難對遠距離的目標進行檢測，而以電臺直達信號作為參考與目標回波信號進行相關檢測；系統中信號的相關處理會產生旁瓣，而強目標的旁瓣會影響附近的弱目標檢測。

It was to no purpose for or us after we were in the boat to think of reaching to own ship, so all agreed to let her drive and only to pull her in towards shore as much as we could, and our master promised them, that if the boat was stav d upon shore he would make it good to their master, so partly rowing and partly driving our boat went away to the norward sloaping wards the shore almost as far as winterton ness

我們就慢慢把小艇拖近船尾，全體船員才得以下了小艇。此時此刻，我們已無法再回到他們的船上去了，大家一致同意任憑小艇隨波飄流，並努力向岸邊劃去。我們的船長許諾，萬一小艇在岸邊觸礁，他將給他們船長照價賠償。

Dublin reuters - prisoners in ireland and italy have embraced the world of opera for an innovative project which will see sets and costumes designed and made by them used in a full - scale commercial production of puccini ' s " la boheme "

近日，被關押在愛爾蘭和義大利兩所監獄內的部分囚犯有幸與奇妙的歌劇親密接觸了一回，由他們親手製作的舞臺布景與服裝將於今年晚些時候出現在普契尼歌劇波希米亞人的商業演出中。

Dublin ( reuters ) - prisoners in ireland and italy have embraced the world of opera for an innovative project which will see sets and costumes designed and made by them used in a full - scale commercial production of puccini ' s " la boheme "

近日，被關押在愛爾蘭和義大利兩所監獄內的部分囚犯有幸與奇妙的歌劇親密接觸了一回，由他們親手製作的舞臺布景與服裝將於今年晚些時候出現在普契尼歌劇《波希米亞人》的商業演出中。

From the result we get the following conclusion : for narrow - band signal, the effect of the method based on fft is best. for wide - band signal, when snr is up to certain degree ( higher than - 7db or so ), the curves of square error of modified methods are more obvious and closer to crb. for an echo composed of more than one frequency or direction, space - frequency distribution could show more direct information of frequency and direction, which is more advantaged to make precise judge and estimation for doa of echo

從估計結果發現，對于窄帶回波信號，基於fft的方法估計性能大大優于其他方法；對于寬帶回波信號，在信噪比達到一定程度（高於約- 7db ）時，補償后的幾種估計法的性能改善均比較明顯，誤差曲線越來越接近crb曲線；對于回波中存在多頻率多方位的情況，空間?頻率分布圖能提供較為直觀的頻率及方位信息，因此應用空間?頻率估計法來進行方位估計，更有利於進一步對回波的具體方位進行準確判斷和估計。

During the instantaneous frequency estimation of lfm, there exists some error in the edge, so in the dissertation, a fitting method is proposed to modify it. from the computer simulation, the following result is obtained : for cw, the method based on cwt is most effective, and with the snr rising, the error curve of it is more and more closer to crb. for lfm, the method based on wvd gives the best result, and the effects of cwt and stft are similar for multi - component signal, compared to stft and wvd, cwt is a better choice

通過模擬發現，在單頻回波的瞬時頻率估計中，基於cwt的方法最為有效，隨著信噪比的提高，其均方誤差曲線越來越接近克拉美?羅界；在線性調頻回波的瞬時頻率估計中， wvd法得到的效果最好，而cwt與stft法的估計效果比較接近；在多分量信號的瞬時頻率估計中，相對于stft和wvd法， cwt法是一個更好的選擇。

A chirp scaling algorithm for airborne bistatic sar is proposed, which is suitable for the flight configuration that transmitter and receiver follow parallel path with equal velocity in broadside looking mode. airborne bistatic sar echoed signal model of this particular flightpaths is derived. the model is converted into the range doppler space and is mapped from double range variables to single range variable domain

本文建立了這種特殊飛行模式下雙基地sar的回波信號模型，推導了它在距離多普勒域的表達式，解決了信號模型從雙距離變量域向單距離變量域轉化的問題，並推導了cs因子的線性近似表達式，分析了演算法中各種近似造成的誤差。

The mcc is composite of meso -, meso - and meso - scale convective systems which have different structure and motion features. although circularly approximately on the satellite imagery, the mcc shows linear distributions of radar echo, torrential rain, thunderstorm, cumulonimbus and mesoscale physical parameters as a squall line

它是中、和尺度對流系統組成的復合體，它在雲圖上近似圓形，其雷達回波、暴雨、雷暴、對流雲、中尺度物理量場等卻呈類似颮線的帶狀分佈。

The reflected wave will be received by the receive antenna and transferred to digital data. we can analyze the data that saved by the computer of gpr to deduce the medium ' s property, situation, location and so on. being a kind of nondestructive, untouched method, it has many advantages such as nondestructive, rapidness, simpleness and high precision, so it will have wide applications in the ways of examination, control and maintenance to road quality, especially for highway

路用探地雷達是近幾年發展起來的、應用於公路無損檢測的一項新技術，它利用超寬帶脈沖電磁波對路面結構層進行探測，當雷達發射天線發射的電磁波在路面結構層中傳播時會在介電特性突變處產生反射和透射，反射回來的波經由接收天線接收並轉化為數字信號儲存起來，通過分析探地雷達回波信號來估計路面結構層的性質、狀態和位置等特徵。

The backward scattering field of extended target is approximated as the synthesis of many strong scatter centers on target, and geometric optical method is used in establishing deterministic model of a aircraft in the paper, the model is used to evaluate the performance of frequency diversity in suppressing glint at last

本文將復雜目標後向散射回波近似為目標上若干強散射中心回波的合成，結合幾何光學法得到了某種飛機目標的確定性模型，並用該模型評定頻率分集對角閃爍抑制的改善性能。

The claim has been made upon the results that the wmt method should be used in the area near the vertical, while the phase difference method in slant beams and a rule has been given to select among those two methods according to the " effect value " on condition the depth is known for the consideration of improving the measurement precision, this paper studies the factors which affect the toa measurements, and three expressions of precision has been introduced as to applications of phase difference method, this paper introduces an automatic hunting method based on amplitude power to get the range of echo arrival

採用方差分析的方法，使用重復海試數據對wmt法和相位差法的優劣進行了分析，指出了垂直附近應該使用wmt法，而傾斜波束應該使用相位差法；給出了在深度真實值已知前提下wmt法和相位差法使用的判決準則，即根據效應值的大小來選擇。本文從提高測量精度角度出發，分析並驗證了影響toa測量精度的因素；給出了三種精度表示。在應用相位差法時，引入了一種基於幅度能量的區間自動搜索方法；實驗表明該方法能很好地確定回波到達的大概時間范圍。

The third part introduces the design, fabrication, analysis and testing of serveral types of variable optical attenuators. we have designed a micro - machining based voa that consists of an electromagnetically actuated gold - coated silicon mirror rotating around a 100 # am diameter shaft and a miniature driven coul. the voa is capable of fast dynamic response ( < 2ms ), great dynamic range ( 0 ~ 35db ), and low return loss ( < 55db )

論文利用有限元分析軟體ansys對該器件進行工作曲線分析及動態響應分析，分析結果與實測結果接近，實測結果表明，驅動電壓0 8v ，工作范圍0 35db ，動態響應時間為2ms ，插入損耗小於0 . 8db ，回波損耗小於- 50 . 5db 。

Relatively weak but uniform echoes were observed over the surrounding waters of hong kong

圖中可見在香港附近水域出現一些相對較弱但平均的回波。

Analysis shows that they can be considered as the stochastic process around some working state under the disturbance inpllt of gauss white noise

分析表明，它們可看作是在高斯白噪聲干擾輸入下的圍繞工作點附近來回波動的隨機過程。

It reveals that, for a target with constant acceleration, the return signal in doppler domain, which is obtained by range fft of intermediate frequency return signal of othr, can be approximated as a lfm signal, whose fm rate is related to acceleration

機動目標回波分析結果表明:對于勻加速模型而言，高頻地波雷達的中頻回波信號經過距離維fft處理后在多普勒域可以近似為一個線性調頻信號，其調頻率與加速度有關。