synchronization sequence 中文意思是什麼

synchronization sequence 解釋
同步脈波
  • synchronization : n. 同時；同時性；【物理學】同步，同期；【電影】同期[步]錄音，配音譯制。
  • sequence : n 1 繼續；接續；連續。2 順序；程序；次第；關系；關聯。3 後果；結果；接著發生的事；後事；後文。4 ...
  1. In this paper, the radiolocation technique and principium of ofdm in the cell - communication system were introduced firstly, and sensitivity of ofdm system to synchronization was analyzed. then, two methods of timing synchronization based on the cyclic prefix and pilot sequence were introduced, and a novel timing synchronization method based on pilot sequence was presented, which provided a correlation peak with pulse shape

    由於ofdm系統中的定時同步要求和無線定位中的測時測距在本質上是一致的，所以本文緊接著分析了基於循環前綴和導頻序列的兩種定時同步方法，並提出了一種新的基於導頻序列的具有脈沖形狀相關峰的定時同步方法。
  2. In the receive site, we operate non - chaos synchronization in reverse and resume binary message sequence by the correlated rule of the sender

    接收端根據發送端的相關規則，進行非混沌同步的逆運算，恢復出二進制信息序列。
  3. The theory of direct sequence and cck is described. the mechanism of tdm is established. then, a method to maintain the synchronization of the tdm is proposed

    在介紹了ieee802 . 11協議的物理層用到的直序擴頻技術和補碼鍵控技術后，對系統的時分雙工工作機制的建立與維護進行了詳細的分析。
  4. By associating the synchronization point of process with thread status, tc looks into and confines the correct sequence of memory access events from the os aspect to ensure programs correct running. tc organically associates process management module with memory management module

    線程一致性模型通過將并行程序執行過程中的同步點和線程狀態結合起來，從操作系統的角度來觀察和限制存儲訪問的正確順序，從而保證了并行程序的正確執行。
  5. Secondly, some encryption algorithms are introduced, with the analysis and comparison for these encryption algorithms, the author designs an appropriate project to accomplish the end - to - end encryption. thirdly, this paper accomplish the design of an encryption scheme which combining the strongpoint of the rsa algorithm and the idea algorithm. the main process is as following : first, input the digital signal to the encryption device, and then the digital signal exclusive or with the keying sequence which is generated by key stream generator ( ksg ) and the ksg is based on the idea encrypting and deciphering algorithm, the secret key synchronization is also studied

    本課題主要研究的內容是數字集群通信系統加密機制的研究，首先介紹了數字集群通信系統的安全保密機制，講述了單向和雙向鑒權的過程、單呼和群呼的空中介面加密過程及其密鑰的選用和管理，特別介紹了端到端加密;然後介紹了幾種常用的加密演算法，通過分析其優劣，提出了端到端加密的解決方案;最後完成了基於rsa演算法和idea演算法的數字集群通信系統加密方案的設計，其具體過程為將經過數字信號送入加密器里，和以idea加密演算法為基礎設計的密碼流發生器（ ksg ）產生的密碼序列進行加解密運算，並且研究了此加密過程的密碼同步問題。
  6. The algorithm have the good one - way property, high sensitivity to initial values and good security due to the intrinsic characteristic of chaotic system and rijndael algorithm. the simulation experiment demonstrates the convenience and good hash performance ; 3 ) a new scheme of digital voice secure communication was proposed based on chaotic modulation without additional synchronization. the modulation sequence generated by chaotic logical mapping was used to encrypt the digital voice signal

    混沌系統和rijndael演算法的固有特點使該演算法具有較好的安全性、對初值有高度的敏感性以及較好的單向性能，並且易於實現，是一種有效的單向hash函數； 3 ）研究了一種無需同步的基於混沌調制的數字語音保密通信系統的方案，利用邏輯映射產生混沌調制序列，以該序列作為密碼對數字語音進行加密處理，為了更好的隱匿信號特徵，混沌調制在小波分解的基礎上，對不同的通道使用不同的參數進行，並借鑒混沌掩蓋對信息信號進行了限幅處理，使密文完全隨機化。
  7. Then, introducing something about spread spectrum technique. and deciding to select direct - sequence spread spectrum ( ds ) in underwater acoustic communications by comparing ds to fh according to the properties of underwater acoustic channels. after that, discussing something about rake receiver, simulating the path - search algorithms, synchronization circuits and rake receiver in low speed underwater acoustic communications and analyzing some major factors influencing the performance of systems

    然後介紹了rake接收技術的基本原理，並對rake接收系統中的路徑搜索和同步系統進行了討論和模擬分析，另外還對rake接收技術在低速水聲通信系統中的應用作了模擬分析，並討論了一些影響rake接收系統性能的主要因素。
  8. A new joint timing and frequency synchronization method for ofdm based on short training sequence

    一種新的基於區域的圖像相似性計算
  9. Developers may find use for atomic variables directly as a higher - performance replacement for shared counters, sequence number generators, and other independent shared variables that otherwise would have to be protected by synchronization

    開發人員可以直接將原子變量用作共享計數器、序號生成器和其他獨立共享變量的高性能替代，否則必須通過同步保護這些變量。
  10. At the base of earnestly analysis to the ov7620 working sequence, using its frame synchronization, field synchronization and the pixel - clock signal, completed gathering of the active power meter reading image which is reduced resolutions at the control of mcu

    在仔細分析ov7620工作時序的基礎上，利用其幀同步、場同步和像素時鐘信號，在單片機的控制下完成了對電度表讀數圖像的降低解析度採集。
  11. The method was correlate search and fft carrier detection, which could solve the problem of the capture of the spread spectrum code under the condition of low snr and big frequency offset. we also put forward a method, shift receiving window and correlate with local sequence, which not only could solve the problem of symbol synchronization but also could acquire the statistics of the multipath. then we utilized the results of the channel estimation and the technology of rake receiver to decode the received spread spectrum sequence and acquire rude information

    方案中提出了：相關搜索、 fft檢測信號載波的方法，解決了低信噪比、大頻差條件下擴頻碼的同步捕獲難題；滑動相關完成位同步的方法，解決了低信噪比下的同步問題；在時域利用相關進行通道估計，然後利用rake接收技術完成相關解擴的方法，一定程度上解決了多徑衰落影響解擴性能的問題。
  12. The correlation properties of pn sequence are widely used for synchronization in conventional cdma systems, and corresponding synchronization algorithms are very mature by now, so a new synchronization technique based on the correlating properties of pn sequence is discussed in this paper, in which synchronization may be performed after ofdm deframe and before fft conversion in order to make full use of transmitted cdma signal structure

    本論文針對基於pn序列的相關特性深入地討論了mc - cdma移動通信系統的同步捕獲技術，對同步捕獲的原理和方法作了較為深入的研究，詳細分析其捕獲方案，推導出它的主要性能指標並進行分析。
  13. Furthermore, this paper exploringly studies an 802. 1 la high - speed wlan with the 54mbps data rate, and presents a sort of time synchronization and frequency offset estimation method based on the frequency domain auto - correlation of the unique preamble training sequence of 802. 11 plcp frame ; the method have the high time precision, the wide frequency estimat ion range and short convergence process ; and moreover, it can applied to other frame communication system

    另外本文還對最高傳輸速率為54mbps的802 . 11a高速無線局域網系統進行了探索性研究，討論了ofdm調制技術在無線局域網中的應用；結合802 . 11a物理層數據幀結構特點，提出了一種基於前導訓練符號序列的頻域自相關時間和頻率同步方法，此方法具有定時精度高、頻偏估計范圍寬和同步建立迅速等特點，也適合於其它幀通信應用場合。
  14. Chapter 3 discuss the modem technology and synchronization of direct sequence spread spectrum system ( the design in this paper also use this system )

    第三章對常用的直接序列擴頻系統（本設計也正是使用這種系統）的調制解調以及同步技術進行了討論。
  15. There are mainly four parts about control synchronization of hyperchaos and their application in this paper : optic systems is modulated with electronic parameters, the unit of function circuit is applied to construct circuit system, educed a equation of the nonlinear dynamics of complex map and designed a kind of digital circuit used to spread spectrum sequence and application experiment of secure communication system

    全文內容主要包括四個主要研究方面：電參數調制光學系統，形成超混沌控制和同步；單元功能電路法構造超混沌電路實現超混沌控制和同步；推導復合映射動力學方程產生擴頻序列構造數字化電路模塊；利用超混沌動力學系統展開保密通信實驗應用研究。
  16. The actual use and theory analysis indicate that labwindows / cvi development kit can enhance perfectly system real time measurement and control abilities ; detailed data formats can be transformed easily target database by mfc odbc ; real _ time main memory database directly accessing main memory is a perfect scheme to meet the real time requirement ; priority levels and data view that are designed on system characteristics, can solve primely the problem of time sequence consistency ; ntp can basically meet system time synchronization requirement

    理論分析和編程實現結果表明labwindows cvi作為測試控制軟體開發工具對系統實時測試、控制性能有很大的提高； mfcodbc能極其方便地實現對具體的數據格式進行數據轉換；以內存直接尋址方式的實時內存數據庫是解決系統實時性的理想方案；針對系統特點而設計的優先級和數據視圖能很好的解決系統時序一致性問題； ntp協議軟體同步演算法基本滿足系統同步精度要求。
  17. Usually in ofdm system, the time - domain synchronization in the platform is the symbol - frequency synchronization using pn - sequence preambles. its algorithm has been designed based on the requirement of platform, and validated by matlab simulation. then the verilog program has been designed based on this algorithm

    測試平臺中的時域同步是ofdm系統下基於pn序列的符號和頻率同步，其演算法是根據融合方案時域同步演算法，同時結合測試平臺系統要求設計的，演算法性能已經通過matlab模擬得以驗證。
  18. Then, the address code can be designed by different phase sequence of an m sequence. our studied method can attain better communication quality than before case. of course, synchronization among all users is requested, i. e., our method is a s - cdma communication

    這種地址碼的安排，要求用戶間嚴格同步，使得原本為一個m序列的自相關函數，在各個用戶相位差恆定的條件下，分割成用戶間的自相關和互相關函數。
  19. A sequence of binary characters recorded at the beginning of each block on a phase - encoded magnetic tape for the purpose of synchronization

    相位編碼磁帶上，記錄在每個數據塊的開始處、供同步用的二進制字元序列。
  20. A sequence of binary characters recorded at the end of each block on phaseencoded magnetic tape, for the purpose of synchronization when reading backward

    在相位編碼磁帶上，記錄在每個數據塊末尾的一個二進制字元序列，在倒讀時起同步作用。
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