無線電大氣 的英文怎麼說

中文拼音 [wúxiàndiàndàqì]
無線電大氣 英文
radio atmosphere
  • 無 : 無Ⅰ動詞（沒有） not have; there is not; be without Ⅱ名詞1 （沒有） nothing; nil 2 （姓氏） a surn...
  • 線 : 名詞1 （用絲、棉、金屬等製成的細長的東西） thread; string; wire 2 [數學] （一個點任意移動所構成的...
  • 電 : Ⅰ名詞1 （有電荷存在和電荷變化的現象） electricity 2 （電報） telegram; cable Ⅱ動詞1 （觸電） give...
  • 氣 : Ⅰ名詞1 （氣體） gas 2 （空氣） air 3 （氣息） breath 4 （自然界冷熱陰晴等現象） weather 5 （氣味...
  • 無線電 : radio; wireless無線電愛好者 radio amateur; amateur radio; 無線電報警 radio warning; 無線電報務員 ...
  • 無線 : wireless無線電報 wireless telegram; radiotelegram; 無線話筒 radio microphone ; 無線裝訂 unsewn binding
  1. The radio program was indistinct because of the atmospherics

    由於大氣干擾，無線電節目聽不清楚。
  2. These electrons create electrical effects, such as the aurora borealis, or northern lights, cause the disruption of radio transmissions, and increase the amount of ozone in the upper atmosphere

    這些電子產生了電效應，如極光，或北極光，造成無線電傳送的中斷，在大氣層的上方出現臭氧量的激增。
  3. Evaporation ducts, or tropospheric ducts in general, can guide radio waves to distances far beyond the horizon with less attenuation, and then severely impair some certain radio wave system

    以蒸發波導為代表的對流層大氣波導傳播，可使電波在較小的衰減下沿波導傳播得很遠，從而嚴重影響合適的無線電系統。
  4. Siemic, inc. headquartered in the heart of silicon valley, with superior facilities in us and china, is one of the leading independent testing and certification facilities providing clients with one - stop shop services of regulatory compliance testing and certification accessing global markets

    總部位於美國矽谷並獨資擁有訊邁科技（中國）有限公司的（美國）信科檢驗認證集團，由中國，美國，加拿大，歐盟，日本，韓國和新加坡等授權，並與阿根廷，巴西等檢驗和認證機構合作提供全球128個國家和地區的一站式電子電氣，通信產品和無線設備的產品符合性檢驗和認證認可服務。
  5. In order to utilize the frquency resource adequately and increase the capacity of mobile communication system, the wireless electric wave propagation of existing mobile system always adopts the microcell structure. forecasting the path loss characteristic of electric wave accurately can provide the necessary condition for the layout and design of wireless network, at the same time it is a precondition for the research on the microcell mobile system. the methods of forecasting of wireless electric wave propagation can divide into two parts : one is pluse and respond, that is establish the empirical model based on experimental and statistical data ; the other is ray tracing method, that is establish the deterministic model based on theoretical analyse. the paper discuss the characteristic of wireless signal electric wave transmition in symmetrical atmosphere of earth, and introduce the common path loss transmition model in land mobile communication system, also point out the localization of these models based on experiential methods

    而精確預測無線電波傳播路徑損耗特性，則為合理的微蜂窩無線網路規劃、設計提供了必要條件，同時也是研究微蜂窩移動通信系統性能的前提。無線電波傳播預測的方法分為兩類：一是用沖激響應法，即根據實驗、統計所得數據建立經驗性傳播預測模型；另一種是用射線跟蹤方法，即依據理論分析來建立確定性的傳播預測模型。本文首先討論了在地球表面均勻大氣中的無線電波傳播的基本特性，介紹了陸地移動通信系統中常用的幾種電波傳播路徑損耗經驗性預測模型，並指出了這些經驗性傳播模型對于微蜂窩小區無線電波傳播特性研究的局限性。
  6. Accordingly ray tracing model for microcells propagation prediction has become an important subject. this paper discussed the characteristic of propagation in symmetrical atmosphere on the earth, and introduced several kinds of traditional path loss propagation model in land mobile communication system, also pointed out the localization of these models based on experiential methods

    本文首先討論了在地球表面均勻大氣中的無線電波傳播的基本特性，介紹了陸地移動通信系統中常用的幾種電波傳播路徑損耗經驗性預測模型，並指出了這些經驗性傳播模型對于微蜂窩小區無線電波傳播特性研究的局限性。
  7. Then we introduce the character of the atmosphere channel, which we emphasized on the atmosphere scatter, absorption and scintillation ' s effect on the laser beam. in chapter, we explain why we used cassegrain telescope to collect the optical signal at first, then the lightsource, detector, front amplifier used in optical communication has been compared to that of fiber communication, the noise including shot noise, thermal noise and background light noise has been explained here for analysis the snr and ber in the next section

    在第三章介紹無線光接入系統的光收發單元，採用多孔徑卡塞格倫式的收發天線對消除減小大氣湍流影響有較大作用，針對大氣通道的特點無線光系統收發單元在光源、光探測器、前置放大電路上存在許多有別于光纖通信的技術，同時還闡述了光接收機包括背景噪聲的噪聲機制和接收靈敏度、誤碼率等指標，最後給出了一個整個傳送鏈路的功率預算。
  8. Unlike aircraft flights, measurement of meteorological parameters using radiosonde could reach an altitude of 30, 000 metres before the balloon burst

    探空氣球可升至30公里高才爆裂，相對于用飛機探測的方法，無線電探空儀可探測更高層的大氣資料。
  9. Radio occultation technique for the earth ’ s atmospheric profiling, a new application of the global navigation satellite systems, is one of the most advanced space exploring techniques in the 21st century

    地球大氣無線電掩星觀測技術是導航衛星應用新的生長點，是21世紀最先進的空間探測技術之一。
  10. With the three - dimensional ray - tracing program, the simulation of leo - gps occultation is given. the radio path of occultation observation is simulated, and then the excess phase delay is calculated. this work can be used for studying the effects of the neutral atmosphere and ionosphere on the occultation observations and evaluating the performance of the inversion techniques

    本文介紹了無線電掩星技術的發展狀況和基本原理，圍繞無線電掩星技術及其應用研究展開諸多研究和探討，主要工作內容如下: 1 、利用全球三維射線追蹤程序，開展leo - gps掩星觀測的模擬研究，以計算掩星觀測時電波傳播路徑、計算大氣引起的附加相位時延等。
  11. Measurement of pressure, temperature and humidity operated in much the same principle as the older version of radiosonde, but computation of wind was made use of the vlf ( very low frequency in the range of 10 - 13 khz ) signals of a world - wide navigational network, omega

    該系統量度高空氣壓、氣溫及濕度的方法與舊式無線電探空儀大致相同，但在測風方面則採用了一種新的概念，利用世界性奧米茄導航站網的甚低頻信號（ 10 - 13khz ）來計算出高空風向和風速，無需用雷達追蹤探空儀位置。
  12. Nasa loses radio contact with the mars polar lander moments before the spacecraft enters the martian atmosphere

    1999年，在火星極地登陸者號宇宙飛船進入火星大氣前的瞬間，美國航空航天局失去了與其的無線電聯系。
  13. Not particularly through radio communication, except on certain wave lengths that are absorbed by the atmosphere. but as points of departure for exploration they ' ll be very useful

    不是，尤其不能用無線電聯系，除非通過某些可以被大氣層吸收的波長進行聯系。至於從科學探索的角度出發，這些空間站是非常有用的。
  14. These include operations and maintenance services for key airport authority engineering plant and systems such as airfield e & m installations and systems - - airfield lighting, airfield hvlv & emergency power generating systems, aerobridges, preconditioned air systems for planes, trunked mobile radio system, baggage handling system, aircraft parking aids, pumping systems, air - conditioning system in the passenger terminal building, as well as wastewater treatment plant

    而服務所涉及的主要設施則包括飛行區照明系統、高低壓及緊急供電系統、登機橋、為停于地面的飛機提供預校空氣系統、集群流動無線電通話系統、行李處理系統、飛機停泊輔助設施、抽水系統、機場客運大樓空調系統以及污水處理廠。
  15. According to state - of - the - art of evaporation duct propagation research, and to meet the demands on the prediction techniques of evaporation duct environment and the assessment of radar performance under evaporation duct environment, this dissertation gives a thorough research in depth on the subject described above. the researches include the prediction theory of evaporation duct and its applications, the theory of ray tracing based on which the prediction of radio wave rays are conducted and its application to the predicting of radar range performance under a given evaporation duct, and the characteristics of tropospheric ducts over china

    根據上述情況，結合我國盡快得到蒸發波導環境預測技術及在其中運作無線電系統的性能預測技術等需求，本文針對蒸發波導傳播及其相關應用這一熱點難點問題較深入地研究了蒸發波導環境預測技術的理論及其應用、蒸發波導環境中雷達探測性能評估所要求的基本理論之一? ?射線描跡技術及其在代表性蒸發波導環境中雷達探測性能評估技術方面的應用和我國應用所需的我國大氣波導環境特性等幾個方面。
  16. A. not particularly through radio communication, except on certain wave lengths that are absorbed by the atmosphere. but as points of departure for exploration they ' ll be very useful

    答：除非用某些能被大氣層吸收的無線電波段，否則在太空軌道站用無線電進行通訊並不怎麼特別合適。但作為探險活動從那裡出發倒是非常合適的。
  17. A wire basket on the tip is inflated to touch the airway walls, and radiofrequency waves are beamed through those wires

    氣管鏡的頭部是一個膨大以接觸氣道的金屬藍，無線電波通過通過這些金屬線傳送。
  18. Throughout the descent, shifts in the frequency of the probe ' s radio signal will be monitored to infer the strength of titan ' s winds, and the huygens atmospheric structure instrument ( hasi ) will measure temperature, pressure and electrical fields that could indicate the presence of lightning

    下降過程中將持續監測探測器無線電訊號的頻移，以推算土衛六風場強度；而惠更斯大氣結構儀（ hasi ）會量測溫度、氣壓以及可能顯示閃電是否存在的電場。
  19. Balloon automatically released by the automatic upper - air sounding system. the small box middle right, large photo attached to the balloon is a radiosonde

    自動高空探測系統投放氣球的一刻，系著的小盒子（大圖右邊中間位置）為無線電探空儀。
  20. The method of calculation atmosphere noise is discussed and the detailed root mean square numeric values of different time of summer are obtained

    在計算出不同頻率下地波場強的同時，重點介紹大氣無線電噪聲場強的計算方法，並給出相關海域上夏季不同時段內大氣噪聲場強的有效值。
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