spectrum of complexity 中文意思是什麼

spectrum of complexity 解釋
復雜事物譜
  • spectrum : n. （pl. -tra ）1. 【物理學】譜，光譜；波譜；能譜，質譜。2. 【無線電】射頻頻譜；無線電（信號）頻譜。3. 【心理學】（眼睛的）余像；殘像。4. 〈轉義〉范圍，幅度；（連續的）系列。
  • of : OF ＝Old French 古法語。
  • complexity : n. 1. 復雜性，復合狀態。2. 復合物；復雜的事物[情況]。
  1. 3d nonlinear finite element method, compatible displacement method of different mesh and response spectrum of mode - superposition are used to analyze the intake tower - intake slope static and dynamic interaction, since the complexity of geologic structure. the rational results provide a feasible way for the similar projects analysis in the future

    論文採用三維非線性有限元法、非一致網格位移協調解法、振型分解反應譜法對復雜地質條件下的百色水電站進水口邊坡與進水塔的相互作用進行了靜、動力分析，得出了一些合理的結論，為今後類似的工程計算分析提供了一種可行的方法。
  2. The design of pn code synchronization should find a trade - off between the performance and the complexity of the reciever. in this paper, the pn code synchronization technique in spread spectrum communication is introduced

    本論文首先介紹擴頻系統中採用的pn碼同步技術，然後結合wcdma上行鏈路的特點，提出適合wcdma上行鏈路的擴頻碼同步方案。
  3. The research for key techniques of turbo codes is processed. it includes, ? the design of optimal component codes and the performance of asymmetric turbo codes are analyzed ; ? a search algorithm for short random interleaver based on the distance spectrum and ids criteria is carried out and simplified ; ? random puncturing method to improve the weight distribution of turbo codes with some special code rates is analyzed and simulated. ? the effect of different schemes of trellis termination to the performance of turbo codes is analyzed ; ? a new low complexity decoder structure is provided ; 5

    對turbo碼的部分關鍵問題進行分析和改進，主要包括： ?分析了最優分量碼的設計和非對稱turbo碼的性能； ?設計了基於距離譜和ids的短隨機交織器搜索演算法並進行了簡化； ?提出了採用隨機刪余方式改善特定高碼率turbo碼重量分佈特性的方法； ?分析了不同編碼器狀態歸零方案對turbo碼性能的影響； ?提出了一種降低實現復雜性的turbo迭代譯碼器結構。
  4. On the other hand, the multi - level fast mutipole algorithm ( mlfma ) which based on the integral equation method can obtain the result with great accuracy, but this method accounts in all the couplings between every sub - scatter objects, it needs much more to store all of the information, and because of the rigorous integral on the spectrum space the computational complexity is also enormous

    相對於一些傳統的方法如幾何光學方法，幾何繞射方法，彈跳射線方法有著更高的精度和更廣的適用范圍。但是由於其基於積分方程方法，需要對全局中所有的子散射體之間的相互耦合加以考慮，從而導致在求解電大尺寸目標的散射問題時需要巨大的存儲空間。同時由於其在譜域上嚴格積分導致計算量也很大。
  5. However, limited to the variety of the natural elements and the social environment, the complexity of the surface feature spectrum in the area, the means of remote sensing can not reflect the surface feature state directly, clearly

    而限於區域自然要素、社會環境的多樣性與地物光譜特性的復雜性，遙感手段不可能直接、清晰地反映地物狀況。
  6. 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。
分享友人
分享到 Line

分享到臉書