碼符相關性 的英文怎麼說

中文拼音 [mǎfúxiāngguānxìng]
碼符相關性 英文
code intersymbol correlation
  • 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...
  • 符 : Ⅰ名詞1 （符節） tally （with two halves made of wood bamboo jade metal issued by a ruler to gener...
  • 相 : 相Ⅰ名詞1 （相貌; 外貌） looks; appearance 2 （坐、立等的姿態） bearing; posture 3 [物理學] （相位...
  • 關 : Ⅰ動詞1 （使開著的物體合攏） close; shut 2 （圈起來） shut in; lock up 3 （倒閉; 歇業） close down...
  • 性 : Ⅰ名詞1 （性格） nature; character; disposition 2 （性能; 性質） property; quality 3 （性別） sex ...
  • 相關性 : a ociation
  • 相關 : be interrelated; be related to; be bound up with; correlation; dependence; relevance; mutuality
  1. According to the protocols and the company ' s gsm code, the author analyzes the functions of cm layer, and partitions them in the point of realization, and adds software modules to make the whole system easy to be realized, maintained. the software modules must abide by the rule of high cohesion and low coupling. this is the emphasis and difficulties of the paper

    作者根據協議以及該公司gsm產品的相關代碼總結出cm層應該具有的功能，並從實現的角度對這些功能進行了劃分，增加軟體模塊，以使整個系統易於實現、維護和符合高內聚低耦合的性質，這部分是作者工作的重點和難點。
  2. This thesis analyzed the error performance of mfsk and mpsk modulator in hf with optimal receiver, studied the shortcoming and strongpoint of several typical short - wave data transmission systems and their performance over fading and intersymbol interference channels. the theory and key technical of adaptive modem is discussed. in the last, an efficient modulation scheme - block coded modulation is introduced into hf radio systems to improve the efficiency of hf data transmission, this paper also proposes a hf data transmission system scheme composed of a block coded modulator and a decision feedback type adaptive equalizer

    本文在對短波數傳兩種常見調制方式fsk及psk最佳解調性能分析的基礎上，討論了幾種採用典型調制技術的短波數傳系統（如時頻調制、多進制頻移鍵控慢跳頻、 chess系統）原理、優缺點以及抗衰落和抗符號間干擾的性能；分析了自適應串列數傳系統抗短波通道衰落和多徑干擾的原理、關鍵技術；在本文的最後引入一種有望解決短波數傳系統低效率狀況的調制方式bcm -分組編碼調制，給出了一個採用bcm技術與自適應均衡技術相結合的短波數傳系統方案，並通過計算機模擬進行了初部驗證。
  3. Context - based sign coding is used to remove the redundancy of sign of wavelet coefficient for correlation of them

    小波系數的符號間有一定的相關性，使用基於上下文內容的符號編碼去除小波系數的符號間的冗餘。
  4. Using the theories of probability, algebra and number theory comprehensively, we investigate a class of boolean functions with three - valued walsh spectrum in the first part of this dissertation : the properties of the extended semi - bent functions, which are constructed from any two bent functions, are studied, followed by the structure characteristics of the boolean functions satisfying propagation criterion with respect to all but two vectors ; the definition and cryptographic properties of k - order quasi - bent functions are proposed whose walsh spectrum takes on only three values. some sufficient and necessary conditions are offered to decide whether a boolean function is a k - order quasi - bent function ; a special method is presented to construct the k - order quasi - bent functions, whose cryptographic properties are explored by the matrix method, which is different from the method of walsh spectrum and that of autocorrelation of boolean functions ; the application of this kind of boolean functions in the fields of stream cipher, communications and block ciphers is discussed, which shows the great importance of the fc - order quasi - bent functions ; some methodology are proposed to construct the k - order quasi - bent functions, including the complete construction by using the characteristic matrices of boolean functions, and the recursive method by two known k - order quasi - bent functions we further extend our investigation to the ring zp, where p is a prime, and the similar results are presented as far as the p - valued quasi - generalized - bent functions are considered

    本文首先綜合運用概率論、代數學、數論等基礎學科的理論知識，並以頻譜理論作為主要研究工具，對一類譜值分佈相對均勻的函數? ?廣半bent函數、 k階擬bent函數和p值k階擬廣義bent函數進行了系統、深入的研究，給出了廣半bent函數定義，並探討了廣半bent函數的密碼學性質；給出了k階擬bent函數和p值k階擬廣義bent函數的定義及等價判別條件；討論了k階擬bent函數和p值k階擬廣義bent函數與部分bent函數和p值廣義部分bent函數的關系，探討了它們的密碼學性質；給出了k階擬bent函數和p值k階擬廣義bent函數的典型構造方法，並將對k階擬bent函數的密碼性質的研究轉化到對一類特殊的矩陣的研究上；利用布爾函數的特徵矩陣原則上給出了k階擬bent函數的一種完全構造方法，還給出了從已有的p值k階擬廣義bent函數出發，遞歸構造變元個數更多的p值k階擬廣義bent函數的方法；初步探討了k階擬bent函數在序列密碼、分組密碼以及通信中的應用；給出了一類布爾函數walsh譜的分解式，並利用這類布爾函數的walsh譜分解式給出了一類近似穩定的布爾函數的構造，特殊情形下為k階擬bent函數；利用代數數論的知識考察了p值k階擬廣義bent函數的譜特徵，並給出了k階擬廣義bent函數與所有仿射函數的符合率特徵等等。
  5. After phase 4, inspection and validation, the training center pi should coordinate with the corresponding air carrier pi if applicable, make an evaluation agreement on the training center regulation compliance, and submit this evaluation agreement to the regional administration flight standards office and the principal manager of the regional administration, make the decision of whether to issue the certificate or not, at the same time, apply for the certificate number of ccar - 142 training center to the flight standards department, the two character code of pinyin represent each administration, for example, hd represents east china regional administration, hb represents north china regional administration etc

    完成第四階段驗證檢查后，訓練中心主任監察員應當與相關航空承運人主任監察員進行協調如適用，就訓練中心規章符合性問題達成一致意見，並將此意見提交給地區管理局飛行標準處和管理局主管領導，做出是否頒證的決定，同時可以向飛行標準司申請ccar 142部訓練中心合格證代碼，其中漢語拼音的兩字代碼分別表示不同管理局，如hd代表華東管理局hb代表華北管理局等。
  6. Finally, the paper studies the dsss signal detection and its parameter estimation in non - cooperative communication using the strong self - correlation of spread spectrum sequence. these parameters are the carrier frequency, baud period, chip period and chip sequence

    最後，利用擴頻序列的強自相關特性，研究了直接序列擴頻信號在非協作通信中的檢測和參數估計問題，研究的參數包括:載頻、符號周期、碼片周期和擴頻碼序列。
  7. ( 2 ) the three numeric methods, including formula method, histogram method and feature vector method, of calcucation invariant probability distribution for chaotic map is derived, and their characteristics are discussed each other, these results of the computer simulation are in agreement with those of theoretic analysis. ( 3 ) the principles and methods of chaotic communication are reviewed and commented systematically. first, several main chaotic synchronization methods are discussed, then the methods and ways of chaotic communication are explored, including analogue chaotic communication, digital chaotic communication and direct chaotic communication. this is the article basis, and it startes from follow - up case study

    所做的工作總結如下： （ 1 ）綜述了混沌現象及其理論的相關問題並對碼分多址通信系統的擴頻地址編碼與混沌序列、混沌同步與系統保密性等問題作了討論； （ 2 ）研究了計算混沌映射不變分佈的三種數值方法，即：公式法、直方圖法以及特徵向量法，並比較了各自的優缺點，計算機模擬結果與理論分析結果相符。
  8. Finite support signal is transformed by wavelet basis in order to reconstruct image as possible as alike. experiments show the distribution character and the degree of correlation of sign, within - subband and cross - subband of wavelet coefficients and provide transcendental knowledge for later coding

    通過實驗分析了小波變換后系數的分佈特點，以量的形式給出小波系數的符號相關性、子帶內、子帶間的相關性等多種相關性的強弱，為以後的壓縮提供先驗知識、指導編碼。
  9. But they have the disadvantages such as poor complexity, poor security and insufficient amount of sequence numbers among the family of codes, the chaotic signals have noise ? ike, broadband frequency spectrum, they can be used as spreading codes, furthermore, chaos system is extremely sensitive on initial conditions so that the various initial conditions given by chaos system can provide with large sum of spreading sequences and this can meet the demand of cdma, this thesis sets out to study on using chaos system to generate spreading sequence s, there are two parts is this paper : firstly, we study the basic theory of spread ? pectrum communication and the characteristics of chaos so as to prove the applicability of chaos system to be used in spread ? pectrum ii communication system

    現在使用的擴頻碼有m序列， gold碼和r - s碼等，這些擴頻碼具有良好的隨機性，但普遍存在著復雜度低、保密性差以及同一碼族序列數目少等缺點。混沌信號具有類似噪聲、寬帶連續頻譜的特徵，正符合擴頻通信中對擴頻碼的要求，而且混沌系統對初始值極其敏感，可以通過給混沌系統賦予不同的初始值得到為數眾多、不相關的擴頻序列，這正好滿足碼分多址的要求。本文對利用混沌系統應用於擴頻通信作了一些研究工作，主要包括兩部分：第一部分：探討了擴頻通信的基本理論和混沌的基本特性，說明將混沌系統應用於擴頻通信系統的可行性。
  10. Set content encoding character sets for requests, responses, and culture settings, which determine the results of culture - dependent functions, such as the date, number, and currency formatting

    設置請求、響應和區域性設置的內容編碼字符集，這些字符集將確定與區域性相關的函數的結果（如日期、數字和貨幣格式） 。
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