碼字流 的英文怎麼說
中文拼音 [mǎzìliú]
碼字流
英文
codestream-
A binary tree - based and dyadic indicated codification method is proposed in the digital watershed model ( dwm )
摘要在數字流域模型中提出了一種基於二叉樹理論,並以二元形式表示的河網編碼方法。There are many problems happened when international phonetic alphabet symbols are used in word - processing like nonstandard application, nonstandard encoding which cause a limitation on sharing and communication of datain teaching and research, for instance ; international phonetic alphabet and symbols contained in ones document cannot be accurately displayed when they are removed to another computer. there appears many nonstandard usage, unnecessary characters, symbols, rules, as well as some wrongly written letters which often delay publication of the papers
不僅應用上不規范,也不符合相關編碼標準,因而語言文字應用教學和研究相關數據的共享與交流等受到極大的限制。例如:某人采寫的文檔離開了作者的計算機就不能正確顯示或不能顯示國際音標字母和符號。還有以先定義后使用的形式出現了很多不規范的用例,甚至還「誕生」了一些不必要的字元和規則。In this thesis, firstly, we put forward a new algorithm of the synchronization of carrier reference phase, that is to use the curve synthesizing with the general digital carrier phase looper to have an estimation on carrier frequency within 10 ms so as to meet the need of meteor burst communication. we have done some simulations to get the performance of carrier frequency estimation using two modulation modes ( 16qam and 4 - qpsk ), and had some test on the carrier phase looper in conditions when using different baud rate transmission and when the baud tuning have windage
我們對兩種正交調制方式( 16qam和4 - qpsk )進行了模擬工作並給出了模擬結果,同時討論了碼元同步定時誤差對鎖相環路工作的影響並根據流星通信中使用變速率傳輸時鎖相環路的載波同步性能進行了測試;然後在基於軟體無線電思想的數字處理平臺(該數字處理平臺實現了中頻數字化)上用dsp軟體完成了載波的相位跟蹤。Adopting pattern or document embedding form, screencode can embed information of printer user, print time or the code of print equipment in paper via printing. on one hand it is in favor of investigation channels of information drain, on the other hand it can certificate the authenticity and primitivism of the financial statements or financial documents
採用背景方式或文字埋入方式將列印者,列印時間或列印設備代碼埋入在紙面上,一方面可有利於追查信息流失的渠道,另一方面可做到對紙介質的財務報表,金融來訪單據等的真實性,原始性的認證。Class based on the supplied stream and a specific character encoding
基於所提供的流和特定的字元編碼,初始化Iec 60958 : mpeg pcm digital audio - interface for non - linear pcm encoded audio bitstreams applying iec 60958 : non - linear pcm bitstreams according to the mpeg audio format
數字音頻.適用iec 60958的非線性pcm編碼音頻位流用介面Digital audio - interface for non - linear pcm encoded audio bitstreams appplying iec 60958 - part 4 : non - linear pcm bitstreams according to the mpeg audio format
數字音頻.用iec 60958的非線性pcm編碼音頻位流介面.第4部分: mpeg音頻格式的非線性pcm位流Digital enhanced cordless telecommunications dect - common interface ; test case library - part 9 : abstract test suite for network layer ; fixed radio termination endorsement of the english version ets 300497 - 9 v 0. 3. 2 1
代碼字符集;信息;編碼數據轉換;信息交流;字符集;數據處理摘要本標準規定了由128個字元控制字元和圖形字元,如:字母數字及符號組成的字符集以及它們的編碼表示。Dvb / mpeg - 2 transport stream multiplexer / demultiplex takes an important role in digital video broadcasting system. it can combine several transport streams from source encoder into a single transport stream to transport channel, or demultiplex trasnsport stream into one program sorce to source decoder. its performance has a great influence on the program transmission ability of hdtv system and the decoding quality of decoder in hdtv receiver. mpeg - 2 system multiplexer signalized video, audio, host data and so on to fixed length packet type for making transport stream
Dvb mpeg - 2傳送流復用解復用是數字電視廣播系統中的重要組成部分之一,它將從信源編碼器輸出的多路節目源復用成一路傳輸流送入傳輸通道,或者從通道中包含多路節目源的一路傳輸流中解復用出一路節目送到解碼器解碼。In the beginning, the dissertation gives an overview of digital video system and an introduction of the format of mpeg - 2 transport stream, mpeg - 2 physical interface and frame structure of ds3 stream
文章首先介紹了關于數字電視系統的一些基本概念, mpeg - 2傳送流格式和mpeg - 2的物理介面,以及ds3碼流的幀結構。However, as available shaw films are far from complete, researchers most of the time had to make do with shaky, fuzzy and hazy video copies, and their judgments may sometimes not be based on as firm a ground as wished. the limitations, though, are common to current shaw studies, which we only hope can be redressed by the re - release of digitalised shaw films, including the early black and white productions. whether in editing
現在可供參考的影片還很不足夠,我們的作者們大部分都依靠朋友間流傳的翻版錄影帶或光碟,影音素質大抵只能用松郁蒙三個字來形容,有時不免霧里看花,這些都是當下做邵氏電影研究的局限,只有寄望邵氏作品的數碼影碟能陸續發行,包括早期的黑白製作。Firstly, we generalize and analyze the advantages and present research of elliptic curve cryptography ; secondly, we study the basic theory of the ecc ; thirdly, we illustrate the safety of the ecc and discuss the elliptic curve key agreement scheme, elliptic curve encryption scheme and elliptic curve digital signature algorithm ; fourthly, we study fast algorithms of the multiplication and inversion multiplication of the element of in the underlying finite field f2m whose characteristic is two represented by the two basis of optimal normal basis and polynomial basis. we make improvements to the fast algorithm of the polynomial basis multiplication by hankerson and base on the experiments, we describe the properties and compare the advantages of the multiplication and inversion multiplication of the elements in f2m field under optimal normal bases and polynomial basis. results concluding from the study car be used as references in the realization of the elliptic curve cryptosystem ; fifthly, we overview the current fast algorithm of point multiplication, improve the fix base point comb algorithm, advance the speed of the whole system and remark the advantages and disadvantages of the popular algorithms based upon the experimental datas ; sixthly we realize the algorithm library of elliptic curve cryptography based on the f2m. only change slightly in our algorithm library can we realize the ecdh, eces, ecdsa based onf2m of anysize ; seventhly, we realize the ecc on two secure elliptic curves, including ecdh, eces, ecdsa
本文首先介紹並分析了橢圓曲線密碼體制的優點及研究現狀;其次研究了橢圓曲線密碼體制的基本理論;第三,分析了橢圓曲線密碼的安全性並介紹了密鑰共享,加密,數字簽名等橢圓曲線密碼體制;第四,深入研究了特徵為2的有限域f _ 2m中的元素在多項式基和最優正規基表示下的乘法運算和乘法逆運算的快速演算法,並對hankerson等人提出的多項式基下的乘法運算的快速演算法作了改進,而且在實驗的基礎上不僅分析研究了f _ 2m域中元素在多項式基和最優正規基表示下的乘法和乘法逆運算的性能,還對這兩種基表示下的f _ 2m域中元素運算效率的優劣作了比較和研究,所得的結論可供在實現橢圓曲線密碼體制時參考;第五,研究了目前流行的計算橢圓曲線標量乘法的快速演算法,同時改進了固定基點梳形法,提高了整個系統的速度,並在實驗的基礎上分析研究了流行演算法的優劣;第六,實現了基於f _ 2m的橢圓曲線密碼體制的演算法庫,在我們的演算法庫中只需稍微改變便能實現基於任意尺寸的f _ 2m上的ecdh , eces , ecdsa等橢圓曲線密碼體制;第七,實現了兩條安全橢圓曲線上的橢圓曲線密碼體制,包括ecdh , eces , ecdsa 。At the aspect of hardware design, it adopts pulse distributor and the technology of single polar voltage drive to accomplish the function of controlling and driving stepmotor ; it adopts the technology of pulse width modulation and cmos h - bridge drive to accomplish the function of controlling and driving dc servomotor ; it adopts d / a convertor to accomplish the function of controlling ac transducer ; it adopts the technology of digital phase detection to accomplish the function of detecting the feedback position signal of induction phase shifter ; it adopts dsp ’ s capture cell to accomplish the function of detecting the feedback position signal of photoelectric coder
硬體方面,採用脈沖分配器和單極性電壓驅動技術實現了步進電機的控制和驅動功能;採用脈寬調制技術和cmos互補h橋驅動技術實現了直流伺服電機的控制和驅動功能;採用d / a轉換器實現了交流變頻器的控制功能;採用數字化相位檢測技術實現了感應移相器位置反饋信號的檢測功能;採用dsp的捕獲單元實現了光電編碼器位置反饋信號的檢測功能。Some detailed arithmetics of the codification method in the dwm is presented in an appendix
給出了數字流域模型的河網編碼中若干具體問題的演算法。The latter is the emphasis of this article. its hard core is the accidence analysis builder grammar _ lexer. mll and the syntax analysis builder grammarjpaser. mly. it transforms the fortran character string in the program, which would be processed automatic differentiation transform, into data stream of diversified syntax units
詞法分析和語法分析部分又分為輸入命令數據流以及fortran源程序數據流的詞法分析和語法分析,后一部分是本文分析的重點,它以詞法分析程序生成器grammarlexer . mll和語法分析程序生成器grammarpaser . mly為核心,將進行自動微分變換的fortran源代碼字元串變換成各類語法單位的數據流。Information technology - coding of audio - visual objects - font compression and streaming
信息技術.音頻-可視對象的編碼.字體壓縮和流式傳輸This paper issues the framework and definition of the codification method in the dwm, delineates a drainage network in this special way with its own numerical character
闡述了數字流域模型河網編碼方法的主要思路和基本定義,給出了這種編碼方法對河網拓撲關系的描述方式,並結合實例分析了其數值特徵。The emergence of the ordinary digital images ( which in this paper means the digital images acquired by common non - metric digital cameras ), resolved the the problem of acquiring images quickly on the spot, and lowered the requirement for equipments and skills in photogrammetry, so that made photogrammetry a whole digital process. but all current ways to the measurement of ordinary images are based on dlt or bundles theory, which both require a lot of control points distributing properly, and are inapplicable. in order to increase the adaptability and accuracy of digital close - range photogrammetry based on common digital cameras, researches and experiments have been done on these methods in this paper, as following : 1
普通數碼影像(在本文中主要指採用普通非量測數碼相機獲得的數碼影像)的出現,解決了現場快速獲取影像的問題,且降低了近景攝影測量作業對設備及技能的要求,並使攝影測量過程成為全數字流程,但現有的對普通數字影像的量測處理演算法均是基於直接線性變換或光線束理論的,存在像控點要求多、分佈要求高、不適宜應用的缺點。Through the technological development in more than two years, successively put out and already to the market obtained the high clear little hard disk of the national patent, mp4 ( pmp ), mp3, digital portrait, digital advertisement machine, move dvb car - mountedly digital tv and so on in march of 2005, let people ' s life enter the true digital tidal current time
經過兩年多來的技術開發,於2005年3月先後向市場推出已獲國家專利的高清晰微硬盤mp4 ( pmp ) 、 mp3 、數碼像框,數碼廣告機、車載移動dvb數字電視等一系列產品,讓人們的生活進入真正的數碼潮流時代。For writing characters to a stream in a particular encoding
,使其以一種特定的編碼向流中寫入字元。分享友人