結束空號 的英文怎麼說
中文拼音 [jiēshùkōngháo]
結束空號
英文
end space- 結 : 結動詞(長出果實或種子) bear (fruit); form (seed)
- 束 : Ⅰ動詞1 (捆; 系) bind; tie 2 (控制; 約束)control; restrain Ⅱ量詞(用於捆在一起的東西) bundle;...
- 空 : 空Ⅰ形容詞(不包含什麼; 裏面沒有東西或沒有內容; 不切實際的) empty; hollow; void Ⅱ名詞1 (天空) s...
- 號 : 號Ⅰ名1 (名稱) name 2 (別號; 字) assumed name; alternative name3 (商店) business house 4 (...
- 結束 : finish; closure; foreclosure; end; terminate; conclude; wind up; close; come to an end; come to a...
- 空號 : [訊] space; absentee; dead number
-
Sixteen days ago, the general assembly of the united nations concluded a three - day special session on fighting the world drug problem, sounding a clarion call for an unprecedented worldwide war against drugs
16天前,聯合國大會結束了為期三天的世界反毒品特別會議,從而吹響了規模空前的全球反毒戰的號角。The main research advances can be summarized as follows : ( 1 ) study the signal processing ' s performances and methods of homing torpedo system comprehensively, in order to setting up a corresponding mathematical models ; ( 2 ) analyze the ocean channel ' s effects on the work of homing system, then found some models such as target echo signal, noise ( including background noise, target radiating noise, etc ), ocean reverberation. according to them, simulate the array signal ; ( 3 ) the system structure, every function blocks composing are studied and founded thoroughly. then, discuss methods of signal processing in time domain and airspace domain ; ( 4 ) program the simulation software of torpedo ' s homing system according to the simulation models and flow charts, which connected with torpedo ' s control part
本文所作的主要工作及研究成果主要有以下幾個方面: ( 1 )對自導工作過程中的信號與信息處理的基本理論與方法進行了較為全面的研究,為建立一個較為完備的自導模擬系統提供了理論基礎; ( 2 )討論了自導系統工作過程中海洋通道對目標回波信號與目標輻射噪聲信號等的影響,建立回波信號的數學模型、環境場中的噪聲信號模型(包括海洋環境噪聲、目標輻射噪聲與魚雷背景噪聲等)與海洋混響模型,模擬產生了聲自導系統基陣接收到的回波信號與噪聲信號; ( 3 )深入研究並建立了自導模擬系統的總體框架,給出各個具體功能模塊組成,討論了聲自導系統對信號的時域與空域處理,並結合模擬程序中陣列信號處理模塊,給出固定多通道波束形成的模擬實現過程; ( 4 )根據系統的模擬模型與已建立的模擬流程圖編制了通用魚雷模擬器自導系統模擬軟體,通過網路與控制系統相連,組成完整的魚雷模擬器。Discovery and its crew landed on the edwards air force base, california, dry lakebed runaway on monday, october 3, ending a flight that the u. s space agency hailed as "successful in every way. "
「發現號」航天飛機及其機組人員,於10月3日星期一在加利福尼亞愛德華茲空軍基地的干湖床跑道上著陸,從而結束了美國航天局稱之為「萬事如意」的這一航天飛行。The space shuttle atlantis has landed at california ' s edwards air force base after a two - week mission to the international space station
航天飛機亞特蘭蒂斯號結束在國際空間站為期兩周的任務后,目前已在加利福尼亞的愛德華茲空軍基地降落。The problem of doa ' s estimation of multiple source signals incident on a arbitrary array in the presence of both unknown spatially correlated noise and sensor errors is firstly considered. a modified ml estimation of doa ' s and sensor gain errors is presented. unlike previous work, the proposed method does not impose any structure constraints or parameterization of the signal and noise covariances. the algorithm can be carried out via the alternating projection approach. finally, the performance of the proposed method is shown with computer simulations as well as real array data
在空間相關色噪聲環境及存在陣列模型誤差情況下,首先給出了基於最大似然的doa及陣列幅相誤差聯合估計演算法,該演算法對信號和噪聲無任何約束,且適用於任意陣列結構。演算法可以利用交替投影迭代搜索實現,計算機模擬實驗和外場實測數據表明,本章演算法能給出比傳統的最大似然方法更高的估計性能。The dissertation is dedicatd to the theory of maximum nongaussianity estimation in ica, and some problems are emphasized, e. g., the uniqueness of estimation, the convergence of fastica, the constraint of independence and the nonlinear activation function, the algorithms for multiple components and the order of independnent components
本文重點研究最大非高斯估計的相關理論問題,包括估計的唯一性,演算法的收斂性,獨立性約束分析和非線性激活函數,獨立分量的排序和子空間的選擇,具有時間結構信息的信號源的估計等。But the complex analytical signal ( cas ) theory can erase this spatial sigu - larity. in this section, gauss, hyperbolic and lorentz pulsed gaussian beam have been derived and compared svea and cas solution by numerical simulatio n. in section 3, by using fourier transform technique and applying the paraxial approximation in frequency domain, we derive an integral solution for the transverse and longitudinal components of the light field propagating in free space
接著,考慮了幾種特殊的脈沖gauss光束( pulsedgaussianbeam ) ,結果顯示,在此情況下緩變包絡近似( slowly - varyingenvelopeapproximation )理論已不再有效,其失效的原因是,該理論導致了脈沖光束解的空間奇異性,並使脈沖光束不再具有符合物理意義的光束行為,而通過復解析信號的分析方法可以消除這種空間奇異性。Broadband source location method is investigated by using signal - phase - matching principle, and simulations and experiments are carried out to show the validity of the method ; two high resolution algorithms of broadband signals are proposed, which are the dft interpolation algorithm and the frequency invariant beam space algorithm. the proposed algorithms have no requirement for prior information of source locations, so the results of doa estimation can be unbiased ; a method of temporal - spatial averaging, which can improve the performance of doa estimation for uniform linear arrays, is given. this method can be applied in the most narrowband or broadband eigen - structure based high resolution algorithms
提出了利用信號相位匹配法的寬帶信號方位估計方法並從模擬和實驗兩方面對其進行了驗證;提出了基於dft插值的和基於頻率不變響應波束域的兩種寬帶信號高分辨方位估計演算法,這兩種方法在進行方位估計時均不需要進行方位預估,從而避免了因角度預估可能帶來的估計偏差;最後提出了一種提高均勻線列陣方位估計性能的時空平均法,該方法可適用於多數窄帶或寬帶的特徵結構類高分辨方位估計演算法中。In march 2001, the russian space station mir re - entered the atmosphere and was destroyed in its fiery descent to the pacific ocean, ending a 15 - year sojourn in space as the heaviest artificial object to orbit earth
2001年3月,俄羅斯太空站和平號重返地球,在太平洋上空化成一團璀璨的煙花,正式結束歷時1 5年的服役生涯。The editor inserts attribute quotes and end tags automatically, as well as required namespace and xsi : type attributes
自動插入編輯器自動插入屬性引號和結束標記以及所需的命名空間和xsi : type屬性。分享友人