second-order statistics 中文意思是什麼
second-order statistics
解釋
二階統計學- second : adj 1 第二的；第二次的；二等（的）。2 次等的；較差的；劣於…的 （to）。3 〈美國〉較年輕的。4 另一...
- order : n 1 次序，順序；整齊；（社會）秩序，治安；狀況，常態；健康狀態；條理；會場秩序；議事程序，日程；...
- statistics : n. 1. 統計學，統計法〈用作單數〉。2. 統計數字[資料]，統計表〈用作復數〉。
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Based on the characteristic of fractured signal, time series analysis can detect the distribution of fractures. because of excellent antinoise ability, in high - order statistics theory, the theory of time series analysis includes more information and resolves more problems than second - order statistics
時間序列分析法具有很好的抗噪能力，主要採用了高階統計量的方法，它比以前廣泛應用的二階統計量的方法包含了更多的信息。 -
The third part : according to the verified structural damage identification method and supposing the to - be identified parameters to be independent and have normal distribution, the scheme of identifying bridge structure damage is proposed by using the probability damage identification method. assume the zero - order, the first - order and the second - order perturbation statistics of the frequencies and the mode shapes of the bridge structures are known, and substitute them into the statistics property formulas of the frequencies and the mode shapes, as a result an objective function including the mean values and the variance of all the identified parameters is established. set
對于連續梁橋，當損傷位置位於跨中附近時，大多數無損傷單元的損傷概率均在10 %左右，可作為小概率事件，不發生損傷，但與損傷單元相鄰的無損傷單元，其損傷概率達到20 %以上，很難被排除，只有對這些單元進行二次識別，才能得到比較可靠的計算結果;如果損傷位於支點附近時，則不會出現上述情況，對于無損傷單元，損傷概率都小於10 % ，不發生損傷，損傷識別結果 -
In the second chapter, basic theory about the mathematical statistics and the structural reliability in this paper. such as parameter estimation types of statistics distribution tests of distribution hypothesis methods of linear - second order moment, ect
數理統計學原理主要包括：參數估計、統計分佈類型、分佈擬合檢驗；工程結構可靠度理論主要介紹了一次二階矩方法。 -
The discussion of cultural construction mode in baibuting community is developed as following : the first part presents author ' s motivation in carrying out the research, defining some concepts and introducing a few common modes of cultural construction in urban communities. the second part is a detailed description of fundamental ideas and content, advocating the notion of " human oriented, moral centered, law abiding, trying to creating a modern community with the capacity of sustainable development ", introducing its unique homestead culture. the third part sets forth the innovation of community culture construction modes in baibuting community : in order to create a, human - oriented community culture, establish a peaceful and content environment for the socialism ideology, the baibuting community made innovation on community management system ; by the analysis of the occupational statistics and object groups, the author found out that most of residents come from the middle class ; then, the author gives the definition of middle class and its general features in a sociological perspective ; finally, the thesis analyses the characteristics of the community residents " pursuit of culture and the harmonious development of community culture in aspects like value system, consumption habits, cultural needs
本文通過理論學習，對百步亭花園社區文化建設的模式進行了探索研究，在現狀調查過程中，筆者發現百步亭的社區文化建設之所以成功，除了開發商和物業管理中心的組織建設外，還有小區居民的積極參與合作，三者密不可分，而這又與居民所屬的階層文化訴求密切相關，於是，本文就百步亭社區文化建設模式作了論述，思路如下：文章的第一部分：提出本文研究的緣起，並對一些與本文有關的概念作了界定，還介紹了幾種城市社區文化建設的一般模式；文章的第二部分：介紹百步亭花園社區文化建設模式的基本思想和內容，提出了「以人為本、以德為魂、以法為行，努力創造可持續發展的現代文明社區」的口號，並介紹了其獨具特色的家園文化；文章的第三部分：對百步亭社區文化建設模式的創新作了論述：百步亭社區為了營造以人為本的社區文化，構建社區安居樂業工程，為社會主義思想道德體系提供良好的社會文化環境，在社區管理體制上作了創新；還通過對百步亭社區居民的職業統計，來源群體，分析出其從屬的社會階層主要是社會的中間階層；再次，從社會學角度，定義了中間階層及一般特徵；最後從價值觀、認同感，消費觀念、文化需求等方面，分析了其文化訴求的特徵和與社區文化的協調發展；文章的第四部分：從整合功能和導向功能兩方面總結了百步亭社區文化建設的社會效應；並對百步亭社區文化建設模式的不足提出了意見和建議。 -
Based on the second order statistics, an algorithm is proposed to separate mixed complex - value signals online
摘要基於二階統計量，對在線分離復值混合信號法進行了研究。 -
A simulation comparatively demonstrates the robustness and effectiveness of the new online algorithm due to sufficient utilization of the second order complex statistics
通過盲分離演算法的模擬試驗，發現所提出的盲分離演算法能充分利用復值非常態信號的二階統計量，演算法具有魯棒性好、運算速度快和可在線實現等優點。 -
Since a pseudo - covariance matrix of the observed signals supply additional constraints if the sources are assumed to be independent and improper, it can be proved that the second order statistics is sufficient to separate the mixed complex - value signals for both stationary and non - stationary sources
假設源信號是獨立的且非常態，信號的偽協方差矩陣能增加約束條件，從而可證明二階統計量能夠完全分離復值混合信號，而且對信號是否平穩不作要求。 -
For the digital modulation recognizer, the blind identification and equalization algorithm based on second - order statistics is applied to equalize the received signals firstly, and then the modulation type used can be figured out according to the shape of the rebuilt constellation
對于數字調制方式，本文首先採用基於二階統計量的通道盲均衡演算法對接收信號進行均衡，再利用信號星座圖的形狀判別具體的調制類型。 -
The power spectrum and autocorrelation can be concluded to the second - order statistics. as an extension, the high - order statistics of the dsss / bpsk signal is
本文分析了dsss / bpsk信號的倒譜和周期譜，並在此基礎上對其進行檢測。 -
Compared with second - order statistics, higher - order statistics not only reveal information about a process, but also are blind to any kind of a gaussian process
其中，非高斯、非線性、非平穩和時變系統等復雜的系統辨識問題正在成為人們研究的熱門課題。 -
Higher - order statistics can deal with either colored noise, non - gaussian, nonlinearities or nonminimum phase, whereas second - order statistics can not. so these methods based higher - order statistics are wide applicable in signal process and system identifications. this paper describes the basic theory and methods based higher - order statistics in applicability of system identification and signal process, introduces and analyses the theoretical and algorithmic results of identifying non - gaussian arma process during recent years
當基於2階統計量（如功率譜、相關函數）的經典辨識方法無法滿足有色噪聲、非高斯、非線性以及非最小相位系統的要求時，基於高階統計量方法越來越受到人們的重視，已經成為系統辨識和信號處理等領域的研究熱點之一。 -
This is by two reasons : the first, as the development of military communication technologies, it transit from digital to software implementation, intelligence, broad band implementation and network implementation. many new technologies such as adaptive frequency hopping, burst communication, broadband modulation and complex coding accelerate the research about pertinence algorithms of signal sense and signal processing. the second, three hotspots of modern signal processing - spectrum estimation, high - order statistics ( hos ) and time - frequency analysis theory become more and more consummately and being used in communication jamming and anti - jamming field
應用於軍事通信對抗的信號處理理論發展非常迅速，這得益於兩個方面的動力：其一，軍事通信的技術和手段不斷更新，在數字化的基礎上逐步走向軟體化、智能化、寬帶化和網路化，出現了自適應跳頻、突發通信、寬帶調制和復雜編碼等新的實用技術，推動了具有很強針對性的信號偵測和處理領域的演算法研究；其二，現代信號處理的三大熱點? ?譜估計、高階統計量方法、時頻分析的理論和技術日臻完善，並逐漸應用於通信對抗領域。 -
Order statistics with fixed rank ; rate of total variation convergence ; regular variation of second order
固定秩次序統計量全變差收斂速度二階正規變化函數 -
According to the modeling of additive noise as stable distribution process and the degeneration of traditional second order statistics based time delay estimation method under stable distribution environments, a novel robust time delay estimation method is proposed based on roth weighting
摘要通過對附加噪聲的穩定分佈建模，針對傳統的基於二階統計量的時間延遲估計方法在穩定分佈噪聲環境下的退化現象，提出基於roth加權的韌性時間延遲估計新方法。
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