預編碼 的英文怎麼說

中文拼音 [yùbiānmǎ]
預編碼 英文
precoding
  • 預 : Ⅰ副詞（預先; 事先） in advance; beforehand Ⅱ動詞（參與） take part in
  • 編 : Ⅰ動詞1 （編織） weave; plait; braid 2 （組織; 排列） make a list; arrange in a list; organize; gr...
  • 碼 : Ⅰ名詞（表示數目的符號或用具） a sign or object indicating number; code Ⅱ量詞1 （指一件事或一類的...
  • 編碼 : encoded; code; coded; encrypt; codogram; coding編碼表 encode table; 編碼程序 builder; 編碼尺 code...
  1. Apc with adaptive bit allocation apc - ab

    具有可適應比特分配的自適應預測編碼
  2. Apc with adaptive bit allocation apc - a

    具有可適應比特分配的自適應預測編碼
  3. It has become an irresistible tendency to recon ciliate the relations between exploitation of these caves and their protection, to simplify management and perseverance and to provide the scientific research of the caves with necessary aids. this article applied certain research the envrionmental management information system ( emis ) application in the management of the karst caves for tourism, and made a brief introduction of the exploitation and application processes. we have made corresponding research in the mechanism of based on the system, its pivotal technology, the warning system of the caves " environmental quality, the execution of the caves " environment data base and its code, all of which have produced certain fruits

    運用信息技術協調巖溶洞穴旅遊開發與保護之間的關系，簡化洞穴管理和保護工作，為巖溶洞穴科學研究提供必要的輔助已成為大勢所趨本文就環境管理信息系統envrionmentalmanagementinformationsystem （ emis ）在旅遊巖溶洞穴管理上的應用方面做出了一定的研究，對開發和應用研究過程做了簡要的闡述，主要從系統建立的機理，系統的支撐技術，洞穴環境質量預報警，洞穴環境數據庫實現及其編碼實現等方面做出了響應的研究並取得了一定的成果。
  4. This thesis tries to update the cmdsr system to achieve the characters below : real - time, better robust, higher recognition rate, non - special - man. considering the disadvantages of traditional improved spectrum subtraction speech enhancement, this thesis proposes the theory of fuzzy spectrum subtraction based on the fuzzy theory and improved spectrum subtraction speech enhancement ; as for the difficulties of detecting the endpoint of speech signal, the thesis gives the table of initial and the improved parameters, with which we can confirm the endpoints of mandarin digit speech ; the thesis puts forward two - level digit real - time speech recognition system, the first level is based on discrete hidden markov model which is linear predictive coding cepstrum ( lpcc ) and difference linear predictive coding cepstrum ( dlpcc ), the second level is based on formant parameters ; as for the realization of hardware, the thesis depicts the realization of every part of cmdsr based on the tms320vc5402 in detail ; as for the development of software, the thesis gives the software design flow chart of cmdsr, simulates the basic theory with matlab language and gives the simulation results

    針對傳統的「改進譜相減法語音增強」參數設定單一、環境適應能力差的缺點，提出了一種利用模糊理論和「改進的譜相減法」結合的「模糊譜相減法語音增強」 ;針對語音信號端點檢測困難的特點，通過matlab模擬試驗，給出了能夠準確確定數碼語音端點的初始和改進參數表;提出了利用基於線性預測編碼倒譜參數和差分線性預測編碼倒譜參數相結合的離散隱含馬爾可夫模型進行第一級識別、利用共振峰參數進行第二級識別的兩級漢語數碼語音識別系統，在保證系統實時性的同時，實現連接漢語數碼語音識別系統識別率的提高;在硬體實現上，詳細闡述了基於tms320vc5402的連接漢語數碼語音識別系統各部分硬體設計;在軟體開發上，給出了連接漢語數碼語音識別的軟體設計各部分的流程圖，並對各部分進行了matlab模擬，並給出了模擬結果。
  5. 2 the polymorphism of ul136 gene dna and amino acid sequence 1 ) the length of ul136 orf in all 18 clinical isolates was similar to that of toledo, 723 bp in size. they hade the potential to encode 241 amino acid protein

    ? 2 ?二月136基因編碼區及編碼產物氨基酸序列的多態性株臨床低傳代分離株ul136orf長度均與toedo株相同，為723hp ，預測編碼241個氨基酸的蛋白。
  6. Fractal coding has been proved useful for image compression. it is also proved effective for content - based image retrieval. in the paper, we present a block - constrained fractal coding scheme and a matching strategy for content - based image retrieval. in this coding scheme, an image is partitioned into non - overlap blocks of a size close to that of a query iconic image. fractal codes are generated for each block independently. in the similarity measure of fractal codes, an improved nona - tree decomposition scheme is adopted to avoid matching the fractal codes globally in order to reduce computational complexity. our experimental results show that our coding scheme and the matching strategy we adopted is useful for image retrieval, and is compared favorably with other two methods tested in terms of storage usage and computing time

    分形編碼在圖像壓縮方面取得了很好的效果，同時，分形編碼也能夠用於基於內容的圖像檢索.本文提出了一種基於塊限制的分形編碼演算法和匹配策略，並將它們用於圖像檢索.在我們編碼演算法中，圖像會被預先分成互相不重疊的子圖像塊，然後對這些子圖像進行獨立地分形編碼，從而獲得整幅圖像的分形碼.該編碼演算法能夠在很大程度上減少編碼時間.在進行圖像間相似性的匹配時，我們採用改進的基於九叉樹的分配策略，從而避免全局地進行分形碼的匹配，減少了計算量.實驗結果說明，我們的編碼演算法和匹配策略能夠比較有效地應用於基於內容的圖像檢索，在計算時間和存儲時間上都優于實驗中其它兩種方法
  7. Firstly, four alternative mode was introduces for h. 263 data compress arithmetic : the mode of nonrestrictive sportive vector, syntax - based arithmetic coding mode, the mode of supernal forecast, and the mode of pb frame

    首先詳細介紹了數據壓縮演算法h . 263以及h . 263演算法的四個可選模式:非限制運動矢量模式;基於語法的算術編碼模式;高級預測模式; pb幀模式。
  8. The transmitted information is coded into the amplitude of the pulses so that each predetermined value of pulse energy is associated with a message.

    把傳輸的信息編碼成脈沖的振幅，因而使每個預先規定的脈沖能量值對應於一個信息。
  9. Then this paper makes some overview and simulation on the application of three precoding algorithms under the flat fading channel, which are linear preequalization, tomlinson - harashima precoding ( thp ) and lattice reduction - aided ( lll ) vector precoding

    本文對三種常見的預編碼演算法在平坦衰落通道下的應用進行了綜述和模擬研究，包括迫零線性預均衡、 thp預編碼和格約簡輔助矢量預編碼等演算法。
  10. 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。
  11. The method does not need precoding or constant - modulus ( cm ) modulating

    該演算法無需預編碼或恆模調制。
  12. This method is suitable to the mimo - ofdm systems which adopt linear percodeing

    這種方法適用於採用冗餘線性預編碼的mimo - ofdm系統。
  13. Some theories and key techniques about mimo have been focused worldwide, including the research on mimo detection and precoding techniques

    與mimo無線通信相關的理論和關鍵技術也成為國內外研究關注的焦點，其中包括對mimo檢測技術和預編碼技術的研究。
  14. This scheme not only decreases the lattice reduction complexity but also presentes a good detection performance. at last, based on the research of mimo precdoding techniques under the flat

    最後在對平坦衰落通道下mimo預編碼技術研究的基礎上，開展了準靜態頻率選擇性通道下預編碼技術的研究。
  15. Mimo precoding can reduce the receiver ’ s complexity, specially suited for the downlink of the cellular mobile communication system, so it has been noticed by the worldwide researchers these years

    Mimo預編碼技術可以大大降低接收機的復雜度，特別適合於蜂窩移動通信系統的下行鏈路，因此在最近幾年受到了國內外研究人員的廣泛關注。
  16. In the first part of this thesis, on the base of analyzing the wavelet theory and discussing the wavelet coefficient, a kind of shapiro code algorithm is put forward. it efficiently organizes the wavelet coefficient and enhances the compression

    第一部分在詳細研究小波理論的基礎上對小波系數的組織形式進行了討論，提出改進型shapiro編碼演算法，更有效的組織小波系數並對編碼序列進行一次預編碼，提高了壓縮比。
  17. The simulation results show that our algorithm is effective in tracking the changing of channel without deep fading under the condition that transmission efficiency has been double compared with [ 113 ] with the same sub - carriers ; it is also effective to track the channel with deep fading under the condition that transmission efficiency has been increased obviously when linear precoded technology is used

    模擬結果表明，當fir通道沒有深度衰落時，本文的演算法在相同的子載波和比[ 113 ]傳輸效率提高一倍的情況下，能有效地自動跟蹤通道的變化；當通道有深度衰落時採用線性預編碼的情況下，本文的演算法在比[ 113 ]傳輸效率有較大提高的情況下，也能有效地跟蹤通道的變化。
  18. In chapter 3, based on the idea of joint equalization, we adopt the decision feedback equalizers to perform the second equalization to overcome the problem of filterbank precoders - linear equalizers joint optimization proposed recently, and get a new optimal result

    在第三章中，基於聯合均衡的思想，針對國際上最新提出的濾波器組預編碼-線性均衡最優設計中存在的問題，文章提出了採用判決反饋均衡器完成二次摘要均衡，以消除殘留的塊間干擾，得到了新的最優設計結果。
  19. The simulation results prove that among the three precoding algorithms, lll precoding strategy demonstrates the best ber performance. and the simulation results also tell us if lll precoding algorithm is combined with the v - blast detection, the performance of the precoding system will be improved by the v - blast lll precoding strategy

    與v - blast演算法相結合的格約簡輔助矢量預編碼演算法由於在v - blast中根據當前通道狀態特徵，在預編碼時對信號進行重新排序，因此提高了預編碼性能。
  20. In the fourth chapter, we presented the mmse soft interference cancellation detector as the signal detector, and proposed an effective transmit power allocation scheme to improve the performance of mimo - ofdm system. if ldpc channel coding is applied, we can find the performance can be improved about 1db when ber is 10 - 6

    通過採用預編碼的技術能夠極大地簡化接收機的復雜度，因此在第五章中首先介紹了預編碼技術在無線多用戶mimo系統中的應用，並著重討論了當前引起廣泛關注的thp預編碼技術。
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