orthogonal code 中文意思是什麼

orthogonal code 解釋
正交碼
  • orthogonal : adj. 1. 直角的，互相垂直的；正交的；直交的。2. （統計數字）互不相關的。
  • code : n 1 法典；法規。2 規則，準則；（社會、階級等的）慣例，習俗，制度。3 （電）碼，代碼，密碼，暗碼；...
  1. In order to support multi - rate transmission in ds - cdma, many cdma techniques such as multi - code ( mc ) scheme, orthogonal variable spreading factor ( ovsf ) and variable modulation have been used

    在ds - cdma系統中多速率傳輸的方法有很多種，例如多碼方案（ mc - cdma ） ，正交可變擴頻增益方案（ ovsf ）和多調制方案等。
  2. In this paper, after introduction of the code division multiple access ( cdma ) and orthogonal multicarrier ( mc ) technique, the system model of mc - cdma is analyzed and the bit error rate ( ber ) performance in downlink and uplink channel is shown in awgn channel by computer simulation

    本文在碼分多址技術和正交多載波技術原理基礎上，分析了高斯白噪聲通道中多載波碼分多址（ mc - cdma ）系統的數學模型，並且使用不同的擴展碼對下行通道和上行通道誤碼率性能分別作了計算機模擬分析。
  3. An orthogonal frequency divided group code for cp - cdma system : comb spectrum code

    一種用於cp - cdma系統的正交頻率分組碼：梳狀頻譜碼
  4. Abstract : by comparing the channel capacities hetwem orthogonal space - time block coding and multi - antenna array system over rayleigh fading channel, some capacity loss for orthogonal space - time block coding is obtained, which is a function of the code rate, the rank of channel matrix and the number of transmitter and receive antennas, although the system of orthogonal space - time block codes is simple and easy to implemented. if is also shown that there is no capacity loss only if both the code rate and the channel matrix rank are all one

    文摘:在研究瑞利衰落條件下正交空時分組編碼通道容量的基礎上，將其與多發送多接收天線系統的通道容量進行了比較.比較結果表明，正交空時分組碼雖編碼簡單，易於實現，但在通道容量方面存在較大的損失，損失的程度與編碼碼率、通道矩陣的秩及收發天線數等因素有關.進一步研究表明只有當編碼碼率和通道矩陣的秩都為1時，才沒有通道容量的損失
  5. The manageability - concern code is in line with the design of the jmx - centric service, while the service logic code is orthogonal and crosscutting

    涉及可管理性的代碼以及以jmx為中心的服務被設計成一條線，而服務邏輯代碼與這條線相交（或者橫切） 。
  6. This chapter introduces one technique which based on encrypting the access of storage data, this can be done by coding the phase of reference beams by use of orthogonal - phase - code

    介紹了一種基於對接入加密數據通道進行加密的方法，即對參考光的相位進行正交相位編碼； 4 .雙隨機相位編碼加密光存儲。
  7. Differential space - time block code based on amicable orthogonal design

    基於互滿正交設計的差分空時分組碼
  8. Abstract : analyzes the performance of unipolar ocdma system using optical orthogonal code ( ooc ) considering the dispersion and nonlinearity effect of the transmission medium. theoretical analysis demonstrates that dispersion and nonlinearity effect deteriorate the system performance. the performance of ocdma system assuming dispersion - shifted fiber as transmission medium is very close to the case neglecting the dispersion and nonlinearity effect. assuming rz initial pulse and optical hard limiter are also possible solutions

    文摘:分析了基於光正交碼（ ooc ）的光碼分多址系統的性能.數值結果表明：與以前忽略光纖通道對系統性能的情況相比，在考慮了光纖的色散和非線性效應以後，系統性能有了明顯的下降.給出了一些建議方案來遏制由色散和非線性效應引起的系統性能惡化
  9. Optical orthogonal code ( ooc ) among optical address code is mostly investigated, so the main research of this paper is focused on the construction of ooc

    目前光地址碼中研究得比較多的是光正交碼，因此本文主要研究光正交碼的構造。
  10. This chapter discusses two models of optical information channel of holographic system : intensity model and amplitude model, and discusses some methods overcoming noises by use of these two models. s. encypting holographic data storage based on orthogonal - phase - code multiplexing

    詳細講述了光通道的兩種模型：光強度模型和光幅度模型，並利用這兩種模型討論了克服噪聲的一些措施； 3 .正交相位編碼全息光存儲。
  11. First, the thesis introduced conception and characters of software radio ; second, the thesis analyzed architectures of software radio ; third, the thesis discussed critical technologies of software radio and applications of dsp in software radio, moreover, realized arithmetic of crc coding, convolution code, orthogonal digital frequency conversion and multi - speeds signal process ; finally, the thesis prospected foreground of software radio

    本文首先介紹了軟體無線電的概念和特徵，接著分析了軟體無線電體系結構，論述了軟體無線電的關鍵技術及dsp在軟體無線電中的應用，在tms320c54x上實現了crc編碼、卷積碼，完成了正交數字變頻和多速率信號處理的dsp演算法，最後展望了軟體無線電的應用前景。
  12. 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。
分享友人
分享到 Line

分享到臉書