段頻率演算法 的英文怎麼說

中文拼音 [duànbīnyǎnsuàn]
段頻率演算法 英文
segment frequency algorithm
  • : Ⅰ量詞(部分) section; segment; part; paragraph; passage Ⅱ名詞(姓氏) a surname
  • : Ⅰ形容詞(次數多) frequent Ⅱ副詞(屢次) frequently; repeatedly Ⅲ名詞1 [物理學] (物體每秒鐘振動...
  • : 率名詞(比值) rate; ratio; proportion
  • : 動詞1 (演變; 演化) develop; evolve 2 (發揮) deduce; elaborate 3 (依照程式練習或計算) drill;...
  • : Ⅰ動詞1 (計算數目) calculate; reckon; compute; figure 2 (計算進去) include; count 3 (謀劃;計...
  • : Ⅰ名詞1 (由國家制定或認可的行為規則的總稱) law 2 (方法; 方式) way; method; mode; means 3 (標...
  • 頻率 : frequency; rate
  1. According to the numbers of segmentations, dts has multi scale feature and can reflect different trend similarity of time series under various analyzing frequency. 2 ) an enhanced algorithm, based on dual threshold value, and the conception of sub - series linear are proposed. relative point average error is used to measure the linear degree of sub series, which produced by bottom _ up algorithm

    對應時間序列線性分數目的不同,序列趨勢距離具有基於時間的多尺度分析特性,可以有效反應不同分析下時間序列的相似程度; 2 )採用相對點平均殘差衡量bottom _ up劃分的子序列線性度,提齣子序列線性度概念和一種雙誤差閥值改進,大大提高了趨勢序列模型的準確性。
  2. The thesis firstly addresses the real - time performance of spectral zoom analysis algorithms. complex modulation based zoom algorithm is a classical one of such algorithms, in which samples are modulated, decimated, filtered, spectrally analyzed and re - sorted

    在這種里,對長采樣數據復調制,把欲分析的的中心移到零點,然後重采樣、低通濾波得到欲分析的,再做fft分析。
  3. Based on the transfer - matrix method, the general expressions of equivalent four - terminal network parameters of varying section torsional horn are derived, the relations between frequency equation and both the rotational velocity amplification and that of the surface tangential velocity of stepped type torsional ultrasonic horn with transitional section of cosine - like type are obtained

    摘要基於傳遞矩陣,推導出了變截面桿扭轉振動時等效四端網路參量的一般表達式,研究了帶類餘弦過渡階梯形變幅桿扭轉振動方程與角速度放大倍數及外表面切向速度放大倍數等的關系。
  4. The chaos sequence was applied in these two algorithms to increase its security and was served separately as the random watermark generator and the watermark image encryption techniques. due to the analysis of the image characteristics, we determined the watermark strength by the classification of the image content and obtained better robustness and imperceptibility. new algorithms of meaningful digital watermarking in svd domain with chaotic transform encryption are proposed

    混沌序列在這兩類中分別作為隨機水印信號發生器和二值圖像水印的混沌加密手,具有安全性高、形式簡單的優點;利用hvs特性,分別在時空域和dct變換域中計圖像內容的自適應嵌入強度,增強了的穩健性;水印的嵌入和檢測計復雜度小,簡單。
  5. It is a pop method to embed watermark in frequency field, in most literature, they embed watermark into the coefficients of fft, dct, or high - frequency of dwt using quantization method, we think that : embedding watermark into the low - frequency of audio signal dwt field can improve the robustness of watermark. the watermark is embedded in the maximum of subsection of approximate component the watermark signal using quantization method, for the same quantization size, the “ noise ” added to the signal is

    域嵌入水印信息,是目前一種主流的嵌入,在很多文獻中,都是通過量化音信號的ftf系數, dct系數,或者是dwt域的高系數。我們認為:在小波域內的近似分量(低系數)中嵌入水印能夠提高數字水印的魯棒性,通過量化嵌入水印的方,將水印嵌入到近似分量中每個分中最大值上,因為這樣對于同一個量化步長,量化對象的幅值越大,所疊加的「噪聲」就越小,從而提高了數字水印的不可感知性。
  6. This part put forward the system conception of kdd and the apriori algorithm. then evolved the create - frequent - set algorithm which was fit for the freight agent management system. because of the shortage of efficiency, 1 improved the algorithm. because some of the items were not boolean variables, 1 need the quantitaitve attributes association rules discovering algorithm. in general, there had the levels among the items, so multilevel association rules existed. after perfecting the algorithmic need interpret and evaluate the knowledge. in the end, 1 discussed the privacy and security of kdd. the fifth part described the future problems and prospect

    第四章是論文的主體,著重介紹知識發現的全過程,按照semma方論首先進行數據準備,然後進入數據挖掘階,提出知識發現的概念體系和公認的apriori,從該變出適合於貨代管理系統的生成繁項目集的;因為在實際應用中存在效上的不足,因此進一步地提出了改進方案;在事務處理中各個項目並不都是布爾型變量,因此需要特定的針對多值屬性的關聯規則發現;通常情況下,項目之間存在有層次關系,因此多層次關聯規則的發現普遍存在;完善並運行后需要對發現的知識進行解釋和評估;本章的最後討論了知識發現的私有性和安全性問題;第五章講述有待解決的問題和發展前景。
  7. The content of this dissertation include : orthogonal transformation of digital signal ; mathematic model of modulation signals and software - defined radio receiver ; nine feature parameters of the modulation algorithm and threshold of feature parameter ; development procedure of modulation recognition by ccs and the modulation digital signals produced through matlab ; discussion on sampling speed and instantaneous frequency and analysis of experiment " s result

    本文給出了在ccs集成開發環境下調制識別模擬實現的程序設計和利用matlab模擬產生調制信號的方;分析了調制識別的模擬實驗結果;對采樣速的選取、非弱信號判決、瞬時的計以及數據關聯性的簡化等方面進行了研究。
  8. As the application of distributed computing is used much more widely , distributed database becomes a significant part of information management it avoids a lot of disadvantages of conventional centralized database , and is applicable to many situations distributed database is a set of data which is the unity logic , but in fact these data is located on different sites it is of high availability , easy expansibility , high concurrency , high efficiency and etc in distributed system , data redundancy is a method to improve the speed of query and the availability of system distributed query should shield the lower level details of data redundancy from end users , distributed transaction should ensure data from disaccord this paper introduces basic conceptions of distributed database firstly , discusses distributed transaction and concurrent control , describes the development prototype mysql ’ s characters , architecture and executive mechanism , then shows the skeleton model of dpsql and exposes the strategy and algorithm of distributed query and distributed transaction , at last analyzes the extra expenses and response delay of distributed processes this paper exposes the implementation mechanism of distributed query and distributed transaction emphatically distributed query uses the strategy of “ read one , write a11 ” s0 in such a system if user ’ s requests are read - - only for the most part and the distribution of data redundancy is plausible , efficiency is very high distributed transaction uses two - 。 phase commit protocol to ensure the consistency of global data , which has less communication overhead

    分散式查詢需要向用戶屏蔽數據冗餘分散的底層細節,分散式事務處理要保證全局數據完整,這都是傳統集中式數據庫不曾面臨的問題。本文首先介紹了分散式數據庫的概念性問題;接著討論了分散式事務涉及的定義及;然後描述了dpsql的原型mysql的特性、結構和執行機制;繼而給出了dpsql的梗概模型,闡述了實現分散式查詢和分散式事務處理的策略及;最後分析了進行分散式處理給系統增加的額外開銷和客戶端的額外響應延遲。本文重點描述了分散式查詢和分散式事務處理的實現機制,分散式查詢採用」讀一個寫全部」的本地優先策略,在讀操作繁的系統中,只要庫的分佈合理,單機效極高,幾乎無任何附加開銷和延遲,而以整個系統的角度看來,吞吐量就更是優于單機系統;分散式事務處理採用兩階提交協議,通信次數較少並能確實保證副本一致。
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