衰落中的影響 的英文怎麼說

中文拼音 [shuāilàzhōngdeyǐngxiǎng]
衰落中的影響 英文
waning influence
  • 衰 : 衰動詞（衰弱） decline; wane
  • 落 : 落名詞[方言] （北方對蓮花落的俗稱） a kind of folk song
  • 的 : 4次方是 The fourth power of 2 is direction
  • 影 : Ⅰ名詞1 （物體擋住光線后映出的形象） shadow 2 （鏡中、水面等反映出來的物體形象） reflection; image...
  • 衰落 : decline; be on the wane; go downhill; fading; decay; decaying; lapse; erode
  1. And then facing the problem of the channel estimation of the adaptive modulation system, we conclude out the channel estimation algorithms on maximum likelihood ( ml ) estimation and maximum a posteriori ( map ) estimation under the condition of flat fading channel and selective fading channel in detail. to meet flat fading channel, we simulate the relationship of the ratio between the error covariance in map estimation and ml estimation and pilot symbol message length. the conclusion can be drawn from these results

    接著，對自適應調制系統中的通道估計問題難點，詳細推導了平衰落通道條件下和選擇性衰落通道條件下最大似然（ ml ）估計和最大后驗概率（ map ）估計演算法，針對平衰落通道，我們模擬了map估計和ml估計的方差與導頻符號長度的關系，模擬結果表明，錯誤方差受多譜勒頻率的變化影響最大，並且對實際的自適應調制系統，導頻符號長度的取值超過20個符號長度時， map通道估計明顯優于ml通道估計。
  2. Hiding essence of life is the main physiology function of kidney, the essence in kidney is angry, be airframe life activity this, to airframe the physiology activity of each respect all is having all in all effect ; kidney advocate water fluid, basically be the aerification function that the essence in pointing to kidney enrages, to the body fluid inside body be defeated cloth and excrete, maintain the balance that the body fluid inside body metabolizes, the adjustment with rising very important action ; kidney advocate bone gives birth to pith, it is spirit of the energy in kidney has stimulative airframe to grow actually a of growth function main component, the rise and fall that the essence in kidney enrages, affect the growth of bone and growth not only, and the plentiful that also affects spinal cord and encephalon and development ; " tine is bone ", tine and bone give one cause together, the tooth also is filled by institute of gas of the energy in kidney raise, spirit of the energy in kidney is abundant, fall off the tooth is solid and not easily, if kidney is medium air of essence of life is inadequate, criterion the tooth becomes loose easily, inchoate even fall off ; kidney have one ' s ideas straightened out at 2 shade ( external genital organs and anal ), accordingly, frequent micturition, enuresis, urinary incontinence, make water little or anuria, all the aerification function with kidney is wrong about

    藏精是腎的主要生理功能，腎中精氣，是機體生命活動之本，對機體各方面的生理活動均起著極其重要的作用；腎主水液，主要是指腎中精氣的氣化功能，對于體內津液的輸布和排泄，維持體內津液代謝的平衡，起著極為重要的調節作用；腎主骨生髓，實際上是腎中精氣具有促進機體生長發育功能的一個重要組成部分，腎中精氣的盛衰，不僅影響骨的生長和發育，而且也影響脊髓和腦髓的充盈和發育； 「齒為骨之餘」 ，齒與骨同出一源，牙齒也由腎中精氣所充養，腎中精氣充沛，則牙齒堅固而不易脫落，若腎中精氣不足，則牙齒易於松動，甚至早期脫落；腎開竅於二陰（外生殖器和肛門） ，因此，尿頻、遺尿、尿失禁、尿少或尿閉，均與腎的氣化功能失常有關。
  3. Shortwave channel is time varying transmission channel. it has dispersion in frequency and time domains. this characteristics hinds the data transmi - ssion at high speed and the correction of received data. in this dissertation i have analyzed the statistic characteristic of shortwa - ve channel, established the model of shortwave channel and simulated the rayl eigh fading distribution. the technology of spreading spetrum has been proved that it has the capability for anti - multipath and discerning multipath

    在短波通信中，由於通道的時間色散和頻率色散，引起多徑展寬和多徑衰落，前者限制了數據的傳輸速率，後者造成短波數據通信中出現突發錯誤，為了解決多徑效應對短波通信的影響，本文所做工作如下：首先詳細分析了短波通道的統計特性，建立其數學模型；其次分析了擴頻通信的特點，從理論上證明擴頻技術不僅具有抗多徑干擾能力，而且具有分離多徑的能力；介紹了傳統的rake分集合併技術的特點。
  4. Part i tries to track to the history of education trend of thought of anarchism in china. it includes 4 phases : introduction ( the end of 19 century - 1902 ), development ( 1902 ~ 1911 ), bloom ( 1912 ~ 1921 ), eclipse ( 1921 - 1927 ). part n analyses education ideas of the faction of china anarchism. lt includes tian yi faction, new century faction, min sheng faction, the faction of anarchical communism. part hi puts forward my evalution form there different angles. generally speaking, it had special significance in special time. even though it had many flaws, it is important for us to value education trend of thought of china anarchism

    主要包括四個方面：無政府主義的產生與傳入（ 19世紀下半葉1902年） ；無政府主義教育思潮的形成（ 1902年1911年） ；無政府主義教育思潮的全盛（ 1912年1921年） ；無政府主義教育思j兌回在a碩士字位論父wmaster 』 sthesis潮的衰落92年1927年l通過對其歷史的回眸，可以清晰地了解無政府主義教育思潮在中國各個時期的特點及發生變化的原因，揭示它的流變軌跡及其對中國教育思想影響的深度和廣度，從而使國人充分地認識和了解無政府主義教育思潮在特定的歷史時期所發揮的特殊的歷史作用。
  5. But with its own inefficient economy foundering, and with the gcc countries jointly wielding hundreds of billions of dollars in investment capital, it is the arabs who now carry greater clout

    但是，伊朗由於低效率，經濟日益衰落，而伊國內的幾千億投資資本也都攥在海灣合作委員會成員國的手中，現在看來還是阿拉伯國家的影響力更勝一籌。
  6. Scattering of the cloud or raindrop for radar wave was always the principal causes of meteorological interference. the author, according to specific property of the spherical or unspherical points, analysed some decline phenomena in propagation for radar - wave, especially the typhoon rainstorm

    雲雨滴對雷達波的散射是產生氣象干擾的主要原因.根據球形、非球形質點的散射特性，分析了雷達波在傳播過程中受其影響所產生的各種衰落現象，特別是臺風暴雨
  7. Through the analysis of the background of social philosophy in modern days, the first section of this thesis elaborates the rethinking process of the problems and concerns in the architectural development, which are affected by the science of complexity. by combining extensive research of the natural and cultural backgrounds, the cultural characteristics of this region and the vicissitudes of traditional residential neighborhoods within huang mountain scenic spot and the surrounding areas, this section provides the new cognition and understanding within the complicate system of adaptability toward the phenomenon and problems occurred during the development of huang mountain scenic spot

    本文上篇通過對當今社會哲學背景的分析，闡述了在復雜性科學的影響下對建築學發展中所存在的問題的重新思考，進而結合多年對黃山風景區及其周邊地區的自然與人文景觀、地域文化特徵和傳統民居集落的興衰的研究，提出了在復雜的適應性系統中對黃山風景區建設發展中出現的現象與問題的新的認識和理解。
  8. In this thesis we analyze in detail the influence, created by random change of the optical wave polarization, on the output of the interferometer. then several principles of eliminating polarization - induced fading are introduced, and the principle that inserting two faraday rotator mirrors into the end of michelson fiber interferometer to eliminate the fading is analyzed in detail. this method can eliminate polarization - induced fading without additional signal processing, and make the output of the sensor stable

    其中，本文詳細分析了光波偏振態的隨機漂移對干涉儀輸出的影響，介紹了目前幾種消偏振衰落技術的原理，著重討論了在光纖michelson干涉儀末端加兩個法拉第旋轉鏡的消偏振衰落的原理，該方法不需要任何附加的信號處理就可以消除偏振衰落，使干涉儀輸出穩定。
  9. Contributions in this paper mainly sh ow four points : 1 the structure characteristic of the received ds - cdma signal is analyzed in the presence of multi - path slow fading effect case for wireless mobile communication. according to this characteristic, four data - selected schemes based on chip - matched filter are presented from the perspective of energy and structure of signal. and the impact of these schemes on multiple - access interference ( mai ) and inter - symbol interference ( isi ) is analyzed

    本文的主要貢獻在於四個方面： 1 、針對無線移動通信系統中廣泛存在多徑慢衰落效應的情況，分析了ds - cdma系統中接收信號本身的結構特徵，根據這個特徵，在匹配濾波的基礎上，從能量與信號結構的角度提出了四種不同的數據採用方案，並分析了不同數據方案對多址干擾與碼間干擾的影響。
  10. Underwater acoustic communications ( uwa ) are made difficult by the combined effect of multipath propagation and high temporal and spatial variability of the channel conditions. the fading which was caused by multipath propagation was one of the main factors influencing the performance of underwater acoustic communication systems

    水聲通道中廣泛存在的多徑傳播效應是水聲通信所面臨的主要障礙之一，由多徑所產生的信號衰落效應是影響水聲通信系統性能的主要因素之一。
  11. More efforts are focused on analysis and computer simulation of the cochannel interference and ieee802. 11b interference ' s impact on bluetooth performance respectively in awgn and rician fading channel. furthermore, the scheme of designing bluetooth point - to - point experimental system with the rok101 007 module and free bluetooth protocol stack cstack is discussed. results in this thesis provide valuable references for the deployment of bluetooth networks

    然後，通過建立模型，本文在理論上詳細分析了awgn通道和rician衰落通道中藍牙同通道干擾，鄰通道干擾以及同頻段ieee802 . 11b干擾對藍牙ber性能，數據以及語音鏈路性能的影響，並針對各種情況分別進行了詳細的計算機模擬，其結果對藍牙網路的鋪設具有一定的指導意義。
  12. Researches on the space - time code have been under the assumption of independent fading and perfect channel state information. but in a realistic system, the above assumption is very difficult to be acquired. based on this, the performance of space - time code under correlated rayleigh fading channel and rician fading channel is studied in thispaper

    在實際的傳播環境中，不同天線上的信號的衰落在空間上存在相關性，研究了瑞利相關衰落通道的空間相關性對空時編碼性能的影響以及相關萊斯衰落通道下空時編碼系統的性能，以期推動空時編碼在無線通信系統中的實際應用。
  13. The method was correlate search and fft carrier detection, which could solve the problem of the capture of the spread spectrum code under the condition of low snr and big frequency offset. we also put forward a method, shift receiving window and correlate with local sequence, which not only could solve the problem of symbol synchronization but also could acquire the statistics of the multipath. then we utilized the results of the channel estimation and the technology of rake receiver to decode the received spread spectrum sequence and acquire rude information

    方案中提出了：相關搜索、 fft檢測信號載波的方法，解決了低信噪比、大頻差條件下擴頻碼的同步捕獲難題；滑動相關完成位同步的方法，解決了低信噪比下的同步問題；在時域利用相關進行通道估計，然後利用rake接收技術完成相關解擴的方法，一定程度上解決了多徑衰落影響解擴性能的問題。
  14. In wireless communication system, signal fading arising from multipath propagation is a particularly severe channel impairment that can be mitigated through the use of diversity

    在移動通信系統中，由於多徑傳播引起的衰落對通道產生的嚴重影響可以通過分集技術得到有效的解決。
  15. The effect of multipath propagation commonly exists in the underwater acoustic channel and the fading which was caused by multipath propagation was the main influence factor of underwater acoustic communication system

    水聲通道中廣泛存在著多徑傳播效應。由多徑傳播引起的信號衰落現象是影響水聲通信系統性能的主要因素。
  16. Concerning with the direct sequence ( ds ) cdma system, this thesis focuses on several issues related to orthogonal spreading sequences and amc, including correlation properties of orthogonal variable - length spreading sequences and their effects on ds cdma system performance, performance of multicarrier ( mc ) ds cdma system with generalized orthogonal ( go ) sequences, adaptive modulation with throughput maximization, performance of adaptive turbo - qam coded modulation in generalized fading channel and performance of amc in wcdma high speed downlink packet access ( hsdpa )

    針對直接序列碼分多址（ dscdma ）系統，本文主要研究了正交擴頻序列和自適應調制編碼若干問題，包括正交變長擴頻序列的相關性及其對dscdma系統性能的影響、採用廣義正交（ go ）序列的多載波直接序列碼分多址（ mcdscdma ）系統性能、吞吐量最大化自適應調制、自適應turbo - qam編碼調制在廣義衰落通道中的性能，以及wcdma下行分組接入（ hsdpa ）中自適應調制與編碼性能五個方面。
分享友人
分享到 Line

分享到臉書