準正交碼 的英文怎麼說

中文拼音 [zhǔnzhēngjiāomǎ]
準正交碼 英文
quasiorthogonal code
  • 準 : Ⅰ名詞1 （標準） standard; guideline; criterion; norm 2 （目標） aim; target Ⅱ動詞1 （依據; 依照）...
  • 正 : 正名詞（正月） the first month of the lunar year; the first moon
  • 交 : Ⅰ動詞1 （把事物轉移給有關方面） hand over; give up; deliver 2 （到某一時辰或季節） reach （a cert...
  • 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...
  1. 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。
  2. The mobile multimedia communication system need to support the transmission of high - speed data and variable speed data compared with the ordinary spread spectrum communication. the data rate ranges from several kbps to hundred kbps for wide up to 2mbps. in order to assure different data rate to transmission in the same spread spectrum bandwidth, we need to use different lengths and orthogonal pn codes

    傳統移動通信系統所提供的數據速率一般只有幾kbps ，而移動多媒體通信所要求的數據速率范圍為幾mbps甚至幾十mbps ，在同一擴頻系統內傳輸多媒體的擴頻比也不一樣，就要採用不同長度的偽碼，而且偽碼之間必須保證正交性或準正交性。
  3. In this thesis, the zero correlation zone ( zcz ) or generalized orthogonal ( go ) sequences are applied to direct - sequence cdma ( ds - cdma ) systems, and the corresponding system performance are analysed. topics on the correlation property analysis of hadamard walsh ( wh ) sequences, go sequences, and loosely synchronous ( ls ) sequences are performed, and the system model and performance evaluation of single - cell and multi - cell synchronous cdma ( s - cdma ) systems employing go sequences, and the applications of go sequences in quasi - synchronous cdma ( qs - cdma ) systems are elaborated

    本文研究了零相關區（ zcz ）或廣義正交（ go ）序列在直接序列碼分多址（ ds - cdma ）系統中的應用並給出了系統性能分析結果，包括hadamardwalsh （ wh ）序列集、廣義正交序列集與鬆散同步（ ls ）序列集相關特性分析，採用廣義正交序列的單小區與多小區同步cdma （ s - cdma ）系統模型與性能分析，以及廣義正交序列在準同步cdma （ qs - cdma ）系統中的應用等問題。
  4. In the next, we discuss the system of the meg - 1 layer i. the paper centers on the two kernel sub - parts : filtering coding and psychoacoustic model, do some research work in sub - band coding ( cbc ) theory and the relate theory such as quadrature mirror filter ( qmf ) and analyse sub - band filter ; also do research work in psychoacoustic theory especially the part related to the mpeg - 1 layer i. in the third chapter, introduce the ti tms320c6000 series dsps and their characteristics, also about the software development flow and the ti dsp / bios operating system of it. the forth chapter is the most important, firstly, according the algorithm flow in protocol, using c language validate the algorithm ; then, transplant and optimize the coding in dsp. in the processing of optimize, acording the assembler program characteristic of ti dsp, the paper put forward the analyse sub - band filter dsp optimization algorithm base on the eight spot idct. the algorithm has been optimize have greatly improved the work efficiency. make use of the technology of the dsp / bios host channels, data io pipe, software interrupt, we implement the musicam algorithm base on dsp / bios

    論文首先對當前語音編碼技術的發展、分類以及mpeg系列音頻標準作了介紹；接著在第二章，給出了layer的musicam （ masking - patternuniversalsubbandintegratedcodingandmultiplexing ）演算法的系統組成，圍繞分析子帶濾波器和心理聲學模型兩個核心模塊，深入研究了子帶編碼工作原理、比特分配及子帶編碼中用到的正交鏡像濾波器和分析子帶濾波器；探討了心理聲學基本原理和mpeg . 1layer所用到的心理聲學模型。第三章對titms320c6000系列dsp作了簡介，介紹了6000系列dsp結構特點、 c6000dsp軟體開發流程和tidsp / bios操作系統。第四章是本文的重點，首先根據協議給出的演算法用標準c語言編程實現並調試通過。
  5. This thesis introduces the concept of qosmecs and proposes a new method to construct the square - matrix embeddable space - time block codes matrices based on the works of tarokh, alamouti and jafakhani etc. comparing to the previous works, the construction formulas presented here are much simple with the same performance of the matrices constructed

    本文基於tarokh 、 alamouti和jafakhani等人的研究成果，引入了準正交方陣嵌入碼的概念，提出了一種新穎的方陣嵌入空時分組碼的設計方法。在生成同樣性能碼矩陣的情況下，本文提出的構造公式與已有設計方法相比要簡單得多。
  6. The design principle is introduced and a solution, called cs code, is obtained by the use of two operations to the conventional orthogonal code set ; an operation of cyclic repetition and an operation of angle rotation

    文章介紹了這種碼的設計準則，並給出了一個具體的實例，稱為梳狀頻譜cs碼。 cs碼利用傳統的正交碼通過2步操作得到： 1循環重復操作2角度旋轉操作。
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