行進盲道 的英文怎麼說

中文拼音 [hángjìnmángdào]
行進盲道 英文
go-ahead blind sidewalk
  • 行 : 行Ⅰ名詞1 （行列） line; row 2 （排行） seniority among brothers and sisters:你行幾? 我行三。where...
  • 進 : 進構詞成分。
  • 盲 : 形容詞（看不見東西; 瞎） blind
  • 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） ...
  • 行進 : process; march forward; advance
  1. The original infomax is only applied in the instantaneous mixture and in the single channel blind deconvolution. this thesis applies the idea to blind sources separation in multiple channel convolutive mixture. through simulation, we can show that the algorithm has good performance

    Infomax演算法適用於瞬時混合情況下的盲分離和單通道盲解卷積問題，本文將infomax演算法推廣到多通道卷積混合，對演算法進行模擬，取得了不錯的效果。
  2. The detecting and imaging processing scheme is presented and described detailedly. the typical computer simulation results are given and illustrate its validity. some problems such as receiving channels mismatch and blind speed are discussed and solved

    文中對動目標檢測和成像過程中存在的一些問題如接收機通道失配、盲速等進行了深入細致的分析，對盲速問題給出了有效的解訣方案。
  3. The main characteristics and advantages are : on one hand, we adopted the low - complexity bussgang algorithm, and did blind estimation to ofdm sub - channel according to the mean square error criterion ( mse ) and peak distortion criterion ; on the other hand, we used the differential detection, which accelerates the convergence speed and avoid the error transmission problem resulted from the bussgang algorithm

    這兩種演算法一方面採用了低復雜度的bussgang自適應演算法，分別依據均方誤差準則和峰值失真準則對ofdm系統子通道進行盲估計；另一方面通過引入差分檢測技術，加快了演算法收斂速度，克服了bussgang演算法帶來的誤差傳播問題。
  4. For the north runway, similar category ii equipment is installed for aircraft approaching from the southwest while more precision category iii equipment, which supports blind landing from northeast direction, has also been provided

    北跑道亦已安裝一套第二類儀表著陸系統，讓從西南面進場的飛機使用。至於從東北面進場的飛機，可使用更精密的第三類儀表著陸系統，進行盲降。
  5. 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。
  6. We propose the joint filterbank precoders and decision feedback equalizers structure at first, by which the dispersive channel is equivallent into parallel independent flat fading subchannels such that the diversity gain of the receiver is increased. then we adopt the discrete - time ( dt ) canonical model to convert the problem of blind signal processing of tv dispersive channels into processing the time - invariant multi - channels model blindly, and discuss the problem of blind equalization and identification of tv dispersive channels based on this new model

    第一種是採用濾波器組聯合均衡方法將色散通道等價為一組獨立的平坦衰落子通道，以提高接收機的分集增益；另外一種是提出採用離散正則模型將時變色散通道的盲信號處理轉化為時不變多通道模型的盲信號處理，並針對該模型對時變色散通道的盲均衡與盲辨識方法進行了詳細討論。
  7. According to wireless and mobile communication system ' s background, this thesis study on estimation of time - varying dispersive channel from four respects : ( 1 ) aid of pilots, ( 2 ) cyclic prefix ( cp ), ( 3 ) blind method, and ( 4 ) ofdm system with multiple transmitting antenna, in which the typical ways is decision - feedback algorithm and self - adaptive block algorithm

    本文以無線和移動通信系統為背景，從四個方面對時變色散通道下的ofdm系統的通道估計和均衡問題進行了研究。第一是基於導頻符號的通道估計方法，第二是基於循環前綴的通道估計方法，第三是通道的盲估計方法，第四是基於多天線ofdm系統的通道估計和均衡方法的研究。
  8. To overcome the defect of the adaptive equalizers, this thesis deal with the technique of the blind equalization that need not the training period

    針對傳統的通道均衡技術的缺陷，本論文研究了不需要訓練碼就能直接進行通道均衡的盲均衡技術。
  9. In order to reducing isi recovering transmitted signal equalizer have to be used in the reciever. because blind channel equalizer can reduce the intersymbol interference without the assistance of the transmitted sequence, it has been becoming a very popular research topic in recent years

    盲均衡器由於不需要訓練序列，僅利用接收信號的統計特性就能對通道特性進行均衡，消除碼間串擾，成為近年來通信領域研究的熱點課題。
  10. Performance simulation of the proposed estimator including mean squares error ( mse ) of channel and uncoded bit error rate ( ber ) have been taken, and the results show the estimator is efficient and very flexible

    對通道盲估計的均方誤差（ mse ）和由此演算法獲得的通道的狀態信息，對無編碼的ofdm系統進行解一調的誤比特率進行了模擬。
  11. For the digital modulation recognizer, the blind identification and equalization algorithm based on second - order statistics is applied to equalize the received signals firstly, and then the modulation type used can be figured out according to the shape of the rebuilt constellation

    對于數字調制方式，本文首先採用基於二階統計量的通道盲均衡演算法對接收信號進行均衡，再利用信號星座圖的形狀判別具體的調制類型。
  12. In addition, sometimes it is impossible to transmit training sequence. however blind equalization technique can depend on only the received data sequence to equalize the channels

    而盲均衡技術可以不用藉助訓練序列，僅僅根據接收到的信息序列對通道進行自適應均衡，因而引起廣泛研究。
  13. ( 3 ) a blind channel estimator based on the aid of pseudo - pilot - symbols ( pps ) is proposed in term of the two characters of ofdm system : the finite alphabet property of information symbols and independent property between subchannels

    （ 3 ）利用ofdm系統傳輸的信息符號為有限字符集和各子載波的相互獨立特性，提出了用偽導頻符號（ pps ）進行通道的盲估計演算法。
  14. The blind synchronization method based on cyclostationarity is firstly analyzed in the downlink. simulations of the method are carried out under different channel conditions. the performances of the method are analyzed, and then compared with the blind method based on the cyclic prefix of ofdm symbols, thus the validity of the method is proved

    本文首先在下行鏈路中分析了基於ofdm信號的循環平穩特性的盲同步信息估計演算法，並在多種通道條件下進行了計算機模擬，對基於ofdm信號循環平穩特性的估計器的性能進行了分析，並與基於ofdm信號循環前綴的ml演算法的估計性能進行了比較，從而證明了提出演算法的有效性。
  15. While this dissertation will use wavelet analysis to decompose fading - process, and provide wavelet model of flat fading channel, then propose a new blind receiver based on monte carol algorithm

    本文將平衰落通道的衰落過程進行小波分解與建模，在此基礎上提出一種採用順序蒙特卡羅演算法的盲均衡接收機，並給出了模擬結果以證明此接收機的優異性能。
  16. Take the hoc based blind modulation detection algorithm as an example, the relationship between the blind modulation detection algorithm and synchronization is investigated. an unproved detection algorithm robust to frequency offset is proposed which solves the problem caused by the error in carrier synchronization. how to synchronize a received signal with unknown modulation type is studied and a blind algorithm to estimate symbol timing of the signals with unknown modulation type is presented

    研究了載波同步和碼元定時同步與調制方式盲檢測演算法的關系；以自適應單載波中高階累積量調制方式盲檢測演算法為例，對于載波同步誤差引起的頻偏問題，提出一種基於頻偏穩健的mdpsk信號調制方式盲檢測演算法；對于未知調制方式信號的定時同步問題，提出一種盲定時估計演算法，該演算法可以估計mdpsk和mqam信號的定時同步信息，實現數字信號的同步分類；提出了一種基於調制方式盲檢測的自適應接收機結構，把調制方式盲檢測，信噪比估計和同步解調聯合起來進行，實現調制方式隨通道質量而自適應變化的信號的正確接收。
  17. The nonstationary vibration sources that are mutually independent can be effectively identified by using the nonstationary blind source separation method from the multi - channel fault vibration signals

    對于多通道的設備故障振動信號，應用非平穩信號的盲源分離演算法，可以有效地提取各自獨立的非平穩振動源，從而可以準確地進行機械故障診斷。
  18. This thesis studies in adaptive equalization problems, and put the emphases in various adaptive equalizers, channel model, etc. finally, the performance of the presented blind equalizer which are used in digital microwave radio channel are compared and evaluated. the results are of great important in the development of more spectral efficient digital microwave radio - links. the focus is set on low - complexity adaptive equalizers for implementation in digital microwave radio systems

    本文圍繞著自適應均衡技術進行了深入的探討，重點研究了自適應均衡演算法、通道模型等問題，並針對幾種盲均衡演算法應用於數字微波無線通道的均衡性能進行了模擬和比較，其結果對于開發具有更高頻譜利用率的數字微波通信鏈路有著重要的指導意義。
  19. The principles of adaptive star - qam and the optimum constellation of star qam are given. in adaptive single - carrier modulation, a blind modulation detection algorithm based on higher order cumulants ( hoc ) for aqam and apsk is proposed. the excellent detection performance of algorithm is evaluated in gaussian and narrow - band rayleigh fading channel

    對自適應單載波和多載波調制中的調制方式盲檢測演算法進行了研究；在自適應單載波調制中，研究了窄帶通道下的aqam調制原理和aqam調制最佳星座圖結構；在rayleigh通道下和高斯通道下，提出一種基於高階累積量的aqam和adpsk調制方式盲檢測演算法，演算法具有良好的檢測性能。
  20. What ' s more, if the " so - called " advanced and modern curriculum is blindly transplanted ingnoreing self - fact, the realistic conditions are insufficient and the effectiveness is bad, so developing and making use of the rich resources and tapping their potential superiority are the only road curriculum reform must follow in countryside school at present

    在廣大鄉村，教育條件落後與潛在資源豐富，課程資源多樣與開發利用薄弱的矛盾尤為突出，並且，不顧自身實際盲目地引進或移植所謂先進、現代的課程，不但現實條件欠缺，其實效性也相當有限。因此，開發利用豐富課程資源，挖掘自身潛藏優勢，是當前鄉村學校課程改革的必行之道。
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