時間導出通道 的英文怎麼說

中文拼音 [shíjiāndǎochūtōngdào]
時間導出通道 英文
channel time-derived
  • 時 : shí］Ⅰ名1 （比較長的一段時間）time; times; days:當時at that time; in those days; 古時 ancient tim...
  • 間 : 間Ⅰ名詞1 （中間） between; among 2 （一定的空間或時間里） with a definite time or space 3 （一間...
  • 導 : 動詞1. （引導） lead; guide 2. （傳導） transmit; conduct 3. （開導） instruct; teach; give guidance to
  • 通 : 通量詞（用於動作）
  • 道 : Ⅰ名詞（道路） road; way; route; path 2 （水流通過的途徑） channel; course 3 （方向; 方法; 道理） ...
  • 時間 : time; hour; 北京時間十九點整19 hours beijing time; 上課時間school hours; 時間與空間 time and spac...
  • 導出 : leading-out; derive; derivation
  • 通道 : thoroughfare; passageway; pass; enterclose; gallery; drong; tunnel; avenue; alure; way; row; key ...
  1. Second, by computing the trajectory of the missile and the method of analyzing cep, influences that the fighter ' s height, speed, pitch angle, the deflection angle between fighter and target, and the target moving characters make on the times of fighter attack and missile launch are deeply developed. third, by relating the motion of the missile and the fighter, the influences that fighter ' s dive angle and the deflection angle between fighter and target make on the attack field of the fighter are discussed in this paper when the fighter perform vertical and horizontal attack. criterion of attack effect is proposed focusing on attack time of the fighter, trajectory of the missile and destruction probability to the target

    本文主要完成了以下幾個方面的工作：對導彈可發射區和飛機可攻擊區進行建模，通過對導彈彈道的模擬計算，並運用典型的圓概率偏差精度分析方法，詳細討論了飛機實施攻擊時，飛機的飛行高度h 、速度v 、俯仰角、與目標的偏離角_ x及目標運動特性等對飛機攻擊時機和導彈發射時機的影響；因此，將飛機和導彈結合起來，詳細研究了飛機在垂直平面和水平平面內實施攻擊時，飛機俯沖角和與目標的偏離角_ x對飛機的攻擊范圍的影響；以飛機實施攻擊的時間t 、彈道特性和對目標的殺傷概率p來評判對地攻擊的效果；最後給出典型算例，通過對空地攻擊過程的模擬實現，對飛機飛行過載提出要求。
  2. Under rayleigh fading channel, we also simulated and compared ber in siso 、 simo and mimo systems. secondly, based on careful study the ber and the channel capacity under white noise channel under mpsk modulation when the channel is rayleigh fading, we duduced the expressions of stbc ’ s ber and channel capacity under rice and nakagami fading. and also analysed the performances through numerical simulation using matlab to testify the exactitude of the dudeced expressions. finally, there exists an error floor of stbc through studying on its performance on time - selectiv fading channel. we analysed the reason and proposed two new decode combination scheme to eliminated the error floor and the performance of stbc on time - selective fading channel is improved. and also compared the two scheme ’ s complication and snr gain

    這些結果大部分是閉式結果，能比較準確地衡量空時塊碼的性能，並對不同衰落的性能做了相互比較，其結果對空時塊碼的實際應用具有一定的指導意義。實際的通道是時變的，分析了空時塊碼在時間選擇性衰落通道中產生誤差地板效應的主要原因是存在碼間干擾（ isi ） ，在此基礎上提出了兩種能消除誤差地板效應的譯碼合併方案，並對這兩種方案的復雜度和信噪比增益進行了比較。
  3. Based on piecewise linear model, this paper proposes an estimation method that first estimates the slope of linear variant and the channel impulse response at the middle time of the current ofdm symbol using pilot sequences, and then estimates the whole channel impulse response through the estimated parameters

    該演算法首先利用導頻序列估計出當前ofdm符號間隔內通道線性變化的斜率和中間時刻通道的沖激響應值，然後根據線性模型利用估計出的參數得到當前符號間隔內所有時刻上的通道沖激響應。
  4. According to comparison between the calculated results, conclusions are summarized as follows : the accuracy of sensors and length of the observation time have great influence to the navigation precision in different orbit types

    對高、中、低三種軌道類型，分別進行計算，通過對比可以看出，敏感器精度、觀測時間長短對不同的軌道類型導航精度影響很大。
  5. In this paper we analyze the characteristics of the source of space data system and give three types of source packet model ; the relationship between m _ pdu multiplexing efficiency and transfer frame completion waiting time has been educed by the analysis of the process of packet multiplexing and frame completion ; then we analyze several key aspects that affect the protocol throughput performance metric to formulate the throughput performance metric of aos packet service

    本文在理論方面，在總結分析空間數據系統信源特徵基礎上，建立三種信源包模型;通過分析包通道復用與成幀過程，得出m _ pdu復用效率與成幀等待時間的關系;探討了三種虛擬通道復用方案;對影響aos協議包業務吞吐量性能指標的幾個關鍵因素加以分析，推導出aos協議包業務吞吐量指標計算公式。
  6. Firstly, a new joint filterbank precoders and decision feedback equalizers structure is proposed, and the corresponding optimization result based on the maximal mutual information criterion is derived. secondly, the concept of dt canonical model is proposed, which is very suitable for the task of blind signal processing based on the second - order statistical of the observations. thirdly, the methods of blind equalization and identification of the tv dispersive channels are researched systematically based on the proposed dt canonical model, and a subspace blind identification algorithm of the time - invariant channel matrix is developed

    本文創新性的成果在於：提出了預編碼-判決反饋聯合均衡系統結構，並從理論推導得出了對應的最大互信息量最優化設計結果；首次提出了時變色散通道的離散正則模型概念，該模型適宜於利用觀察數據的二階統計量進行盲信號處理；基於離散正則模型對時變色散通道進行了系統的盲均衡和盲辨識方法研究，提出了對時不變通道矩陣的子空間盲辨識演算法；針對誤差傳播效應問題，提出了可以消除誤差傳播效應的兩級盲辨識演算法；提出了基於離散正則模型的直接盲均衡演算法；提出了基於特徵恢復思想的神經網路直接自適應盲均衡演算法。
  7. In the paper, the situation and method of scheduling problem studied of automated warehouse are surveyed completely. the problems of automate guide vehicle transport and stack crane picking order are analyzed deeply in parcel post automated warehouse, basic mathematic model of scheduling is set up

    通過對郵包自動化倉庫系統中的自動導引小車運輸問題和巷道堆垛機的揀選順序認真地分析，建立起了調度的基本數學模型，提出了用總的空載時間作為目標函數，並且把這兩類問題都歸結為求解旅行商問題。
  8. Channel time - derived

    時間導出通道
  9. Based on these, the paper confirms travel distance, travel time and unblocked reliability as the road weight type of vehicle navigation system

    在此基礎上確定了將出行距離、行程時間和暢通可靠度作為車輛導航系統的道路權重類型。
  10. On the basis of the brief introduction about the foundation and characteristics of moving - like block, this paper makes detailed discussion about the safety time interval between two trains, offers computation formulas, lists some calculation results and analyzes them

    本文在簡略介紹準移動閉塞特點的基礎上，推導出了城市軌道交通工程項目設計中移動閉塞、常規自動閉塞和準移動閉塞的列車安全間隔時間計算公式，並根據本文得到的計算結果提出準移動閉塞中定位單元長度的優化設計推薦值及有關結論。
  11. In this paper, the relation among highway alignment, vehicle operating velocity, vehicle fuel consumption and vehicle dynamics is discussed synthetically. to evaluate and optimize the design of highway alignment, a " high alignment - vehicle move and system dynamic response " model has been established. by using the computer program of the system, which is written with visual c + + 6. 0, one could easily draw out the variation curves of vehicle operating velocity, vehicle fuel consumption and some certain vehicle dynamics index

    公路線形設計以汽車行駛規律為出發點，本文嘗試以汽車系統動力學的觀點研究道路線形設計問題，針對目前設計中存在的一些問題，建立了「公路路線? ?汽車運行響應模型」 ，分為行駛速度、耗油量預測和動力學響應計算兩大模塊，主要是為了克服傳統汽車理論在指導公路路線設計時過于簡化汽車，只考慮計算行車速度的弊端，力圖通過建立「路線方案? ?行駛車速? ?力學響應」相互之間的量化關系模型，為公路線形指標的選取和優化提供一定的參考價值。
  12. Space - time block codes ( stbc ) based on orthogonal design has attracts enough attentions in its applications in mimo - ofdm systems for its full diversity exploiting and low coding / decoding complexity. these applications include not only system performance improvement, but also reduction of the peak to average power ratio in mimo - ofdm systems. under these backgrounds, this paper first studies space - time block codes under the single carrier, flat fading situation, discusses the encoding / decoding principle and its performance under different channels. then, the author focused on the performance of space - time codes under time selective and frequency selective channels, uncovered the fundamental cause of how maximum doppler shift and power delay profile influences the performance of space - time codes through deduction and simulation

    在上述背景下，本文以單載波，平坦衰落通道下的空時分組碼為切入點，深入分析了其編譯碼原理和在不同通道情況下的性能;以此為基礎，後文展開了對空時分組碼在多載波，時間選擇性和頻率選擇性衰落通道下的性能研究，通過理論推導和充分的模擬，揭示了空時/頻分組碼在時頻選擇性衰落通道中的性能變化的根本原因;在以上對多載波系統中空時分組碼的研究的過程中，作者發現了空時分組碼在降低系統峰平比方面應用的可行性，提出了一種降低峰平比的新方法。
分享友人
分享到 Line

分享到臉書