抽樣定理 的英文怎麼說

中文拼音 [chōuyàngdìng]
抽樣定理 英文
sampling theorem
  • : 動詞1 (把夾在中間的東西拉出; 提取) take out (from in between) 2 (從全部里取出一部分; 騰出) ...
  • : Ⅰ名詞1. (形狀) appearance; shape 2. (樣品) sample; model; pattern Ⅱ量詞(表示事物的種類) kind; type
  • : Ⅰ形容詞1 (平靜; 穩定) calm; stable 2 (已經確定的; 不改變的) fixed; settled; established Ⅱ動詞...
  • : Ⅰ名詞1 (物質組織的條紋) texture; grain (in wood skin etc ) 2 (道理;事理) reason; logic; tru...
  • 抽樣 : [統計] sample; sampling; specimen; samples draw
  1. Firstly, by numerical and theoretical analysis, the author compares some existent confidence intervals, for example, " exact " confidence interval, wald confidence interval and bayesian confidence interval, and finds some deficiencies points of the confidence intervals, whose modification version has been proposed. also, several better confidence intervals such as are also presented. secondly, for given confidence coefficient and interval width, the author constructs a class of asymptotical two - stage interval estimate procedures. at the same time, under varies restriction of confidence coefflcientent interval width, the optional sample size of the first stage has been computed by numerical computation. the numerical computation shows that the method considered in this dissertation have good properties and applied value

    同時,由於poisson分佈的特性,我們知道不存在其參數區間長度小於0 . 5的置信區間,基於這些情況,我們主要展開了以下兩個方面的研究:一是利用數值計算分析與論分析的方法對現有的若干置信區間如「精確」置信區間, wald置信區間, bayes置信區間等進行分析比較,發現了一些缺陷,針對這些缺陷,我們進行適當的修正,並得到幾種性質較好的置信區間如:修正大本區間jeffreys原則下置信區間二是針對已給的置信系數與區間長度,我們提出了一種漸近的兩階段區間估計程序,並利用數值計算的方法,在各種置信系數與區間長度限下,算出了最優的第一階段觀測次數(量) ,大量數據表明,本文考慮的方法性態良好,具有應用價值。
  2. First, how to conduct sample and quantification of continuous time signal which is prior condition of sdr is explored in detail, and the comparison and analysis of some sample modes are given in which band pass signal sampling theorem is most important. second, multi - sample rate signal processing which is an important basis of sdr is studied. emphasis are put on decimation and interpolation those are the most fundamental process and the realization of decimation and interpolation filter

    在基於中頻采的軟體無線電結構框架下,首先詳細探討了軟體無線電的前提條件,即如何對連續時間信號進行采量化,比較分析了幾種采的方式,其中最為重要的是帶通信號采;然後探討了軟體無線電的一個重要基礎,即多采率信號處,重點討論其最基本的兩個過程取和內插以及取器和內插器的實現;接著介紹了結構簡單、適用於一級取的cic濾波器和適用於做2倍取的半帶濾波器;再次論文在總結了傳統的調制解調基礎上,結合軟體無線電器件的特點,系統的探討並實現了基於正交思想的am 、 fm 、 ask 、 fsk 、 bpsk 、 qpsk的正交調制解調演算法。
  3. In this thesis, summarized the basic theories of fourier transformation and the fast fourier transformation that are generally adopted to detect and analyze the electric power harmonic in the electric power supply system. at the same time, summarized the even sample principle, the phenomenon of frequency mix, the window functions and the frequency leaking as so on, those are closely - related to sample from figure signal

    簡要闡述了電力系統諧波檢測分析所普遍採用的傅利葉變換和快速傅利葉變換的基本論以及與數字信號采密切相關的均勻抽樣定理、頻譜混疊現象、窗函數和頻譜泄漏等的基本論。
  4. Summarized no - line loads and the present situations of the electric power harmonic pollution in the guangyuan district ' s electric power supply system ; explained the theories of fourier transformation and the fast fourier transformation those are widely adopted by majority scholars to examine and analyze the electric power harmonic in the electric power supply system. summarized the principle of even sample, the frequency mix phenomenon, the window functions and the frequency leaking as so on, those are closely - related to the figure signal

    簡要闡述了電力系統諧波檢測分析所普遍採用的傅利葉變換和快速傅利葉變換的基本論,簡要闡明了與數字信號采密切相關的均勻抽樣定理、頻譜混疊現象、窗函數和頻譜泄漏等的基本論,同時闡述了電力系統的諧波檢測與分析的相關論基礎知識。
  5. The theorem states that for a finite family a of at least d + 1 convex sets in r ~ ( d ), if every d + 1 members of a have a point in common, then there is a point common to all the members of a. there are many gener - alizations of helly theorem

    這些問題的共同特點是由幾何元素出發,研究其象的關聯性質。 helly是組合幾何中一個非常重要的,由其衍生出的多種多的問題統稱helly型問題。
  6. And it investigates the appearance condition ( including joint, crack, eroding, corrosion, braking pole device rupture, crane - girder ' s gnawing railway and so on ) of the whole crane - girder system on the spot, at the same time, it also actually examines the stress of the beam, chemical ingredient, distortion and railway excursion, etc. through sampling, and based on the actually examined results, it checks and calculates the carrying capacity of crane - girder system. then, based on the investigating on the spot and the calculated result, it discusses the mechanism of fatigue failure of the upper part of welded steel crane - girder, analyses the reason of steel crane - girder in the high - frequency emerging the fatigue crack, institutes the strengthened method of damaged steel crane - girder of accurate packing up workshop of the primary mill plant. finally, it presents some advice and suggestions for the repairing and strengthening method of fatigue crack of upper part of steel crane - girder in the high - frequency

    針對包鋼初軋廠精整車間鋼吊車樑上部區域出現裂縫這一問題,本文首先綜述了國內外關于焊接鋼吊車樑上部區域疲勞裂縫的研究現狀;其次對整個吊車梁系統的外觀情況(包括連接、裂縫、腐蝕、銹蝕、制動桿件斷裂、吊車啃軌等)進行了現場調查,實測了梁的應力、化學成分、變形及軌道偏移等,根據實測結果,對吊車梁系統的承載能力進行了驗算;然後,根據現場調查及計算結果,探討了焊接鋼吊車樑上部區域疲勞破壞的機,分析了重級工作制鋼吊車梁出現疲勞裂縫的原因,制了初軋廠精整車間破損鋼吊車梁的加固方案;最後就重級工作制鋼吊車樑上部區域出現疲勞裂縫的修復與加固方案提出了一些意見和建議。
  7. Therefore, based on the key project ? esearch on some basic problems on quality control and source tracing in modern manufacture ? ( no. 59735120 ) sponsored by national natural science foundation, a deep research is made in this dissertation its branch subject ? the theory and technology of zero - waste control. the main work and achievements are as follows : 1. on the basis of the introduction of common quality control methods, some key problems about statistical quality control are elaborately discussed ; a method to decide the quality control line is developed ; a mathematical model based on the sampling plan of multi - variation of product quality is set up ; the process manufacturing condition of quality control chart is discriminated using the theory of fuzzy diagnosis

    為此,本文基於國家自然科學基金重點資助項目「現代製造質量控制、溯源若干基礎問題的研究」 (項目編號: 59375254 ) ,重點對其中的子課題? ?零廢品控制論和技術進行了深入的研究。論文的主要工作和取得的成果如下: 1在介紹了常用質量控制方法的基礎上,對統計質量控制的幾個關鍵問題進行了詳盡的討論,提出了質量控制界限的確方法,建立了基於產品質量多變異的方案的數學模型,利用模糊識別論對質量控制圖工序加工狀況進行了判別。
  8. First, this paper gives an introduction of some methods of unequal probability sampling, their estimators and variance estimators, including sampling with pps with replacement, methods of sampling without replacement suggested by brewer, durbin, sampford, des raj, murthy, rao - hartley - cochran. then, at the basis of rao and bayless ' s study, we consider that population can be splited two random subpopulations, which are respectively drawn from different infinite super - populations, and compare the stabilities of estimators of the methods that given above. we find that the minor difference between two super - populations has great effect on the efficiency of the estimators for the population with moderately large coefficient of variation ( c. v. )

    本文首先從論上介紹了若干種不等概率方法,它們的估計量、估計量的方差及其估計,其中包括有放回ppz及pps,不放回不等概率中的brewer 、 durbin 、 sampford 、 desraj , murthy 、 rao - hartley - cochran等人的方法;其次,在rao和bayless兩人就本單元數n = 2的情形對上述方法進行比較的基礎上,將總體隨機地分成兩個子總體,視每個子總體取自不同的線性超總體,在文中,我們利用計算機實現隨機分組,並通過畫圖比較各方法估計量的穩性,結果表明,對變異系數c . v . ( x )較大的總體而言,兩個超總體之間的微小差異將對估計量的穩性產生很大的影響,從而說明rao和bayless的比較結果還不夠完善。
  9. The theories and application methods of some quality control techniques are introduced briefly, such as statistical sample, measurement system analysis, evaluation of measurement uncertainty, fault tree analysis bind even tree analysis, and their application in ndt & e is discussed

    簡要介紹了統計、測量系統分析、不確度評,故障樹與事件樹分析等質量控制技術的論及應用方法,並結合無損檢測與評價過程進行了討論。
  10. Sampling theorem to periodic non - continuous signal from cavitation of piezoelectric pump

    抽樣定理在周期性非連續信號的壓電泵氣穴現象中的應用方法
  11. ( 4 ) periodicity and pseudo - modulation when sampling sinusoidal signals the periodicity and pseudo - modulation due to non - integral sampling of sinusoidal signal are analyzed

    著重討論連續信號采過程中抽樣定理對正弦信號的非整數序列的周期性,偽調制性和調制周期的周期性。
  12. On the basis of high speed hybrid filter banks adc system, a kind of downsampler model based on bandpass sampling theorem is presented, and analyzed, proved in time and frequency domain, in addition a downsampler is designed according to the model. a class of high effective hybrid filter banks adc system which bases on the downsampler and radio frequency spectrum is proposed, of which digital signal rate falls m times as fast as the former

    作者提出了一種基於帶通采取器數學模型,對該數學模型進行了時域、頻域的分析證明后,設計了一種基於該數學模型的取器,進而根據無線電射頻信號頻譜的特點,提出了高效混合濾波器組adc系統,其數字信號輸出速率比高速混合濾波器組adc系統降低m - 1倍。
  13. The bottleneck of hybrid filter banks adc system is that it cannot sample directly higher radio frequency signal because of lower analog input bandwidth of its adc. in order to remove it, a kind of downsampler model based on nyquist and bandpass sampling theorem is presented, analyzed and proved in time and frequency domain, in addition a downsampler is designed according to the model. on the basis of hybrid filter banks adc system, a class of high speed hybrid filter banks adc system is proposed

    針對混合濾波器組adc系統因其adc模擬輸入帶寬低而不能對頻率較高的射頻模擬信號進行模/數轉換的瓶頸,作者提出了一種基於nyquist采和帶通采取器數學模型,對該數學模型進行了時域、頻域的分析證明后,設計了一種基於該數學模型的sha取器,進而在混合濾波器組adc系統的基礎上,提出了高速混合濾波器組adc系統。
  14. Fine - cut tobacco and smoking articles made from it - methods of sampling, conditioning and analysis - determination of total particulate matter of smoking articles using a routine analytical smoking machine, preparation for the determination of water and nicotine, and calculation of nicotine - free dry particulate matter

    細切煙絲及其製品.調和分析方法.用常規分析吸煙機測煙製品中顆粒物質總量水和煙堿測的準備和無煙堿乾燥顆粒物質的計算
  15. The history of sampling theorem in wavelet subspaces is presented in section 1. some results and preparing works are showed in section 2

    第一節給出了小波子空間上抽樣定理的發展狀況;第二節呈現出已知結果和準備情況。
  16. In this paper, the theories and techniques of data quality control are thoroughly studied by taking pudong construction and management geographic information system ( js - gis ), including error analysis and accuracy evaluation of digitized data, sample tests of housing surveying product, the principle and method of disfigurement measurement of attribute data based on sampling theories, and total quality control techniques of gis data. these methods are implemented in the construction of js - gis. the main contents are as follow : 1

    本論文以浦東建設管信息系統( js _ gis )為例對gis數據質量控制的一些具體內容進行了研究,包括數字化數據誤差分析以及精度評、房產測量成果的檢驗、屬性數據缺陷率度量的和方法、 gis數據的全面質量控制方法,並將這些方法應用於js _ gis中,主要內容有: 1 、介紹js _ gis的系統組成,對js _ gis中數據的主要構成以及數據採集進行分析。
  17. In this paper the theory of microscanning is described and the process of imaging of microscanning is simulated theoretically, meantime, the possibility of improving the quality of image using microscanning is deduced from the sampling theorem

    詳細介紹了微掃描的原,並對微掃描的成像過程進行論建模,從抽樣定理推論出採用微掃描技術對改善圖像質量的可能性。
  18. Applicability of sampling theory in detect technique by phase approaching of projected grating

    投影柵相位法檢測技術中抽樣定理的適用性
  19. ( 2 ) the characters of the signal for the low voltage electrophoresis chip, signal processing theory such as the nyquist theory, fft, fir filter and the wavelet have been discussed after the learning of low voltage electrophoresis theory and the analyzing of the low voltage electrophoresis chip

    2在深入了解重慶大學微系統研究中心研製的低電壓分離電泳晶元結構、原、信號檢測方式的基礎上,分析了毛細管電泳晶元信號特點以及相關的數字信號處方法(奈奎斯特抽樣定理、傅立葉變換、有限長單位沖激響應( fir )濾波器、小波變換) 。
  20. Article 23 where taking of samples of any feed or feed additive is required to determine whether any of the situations under article 20 hereof exists as alleged, the feed or feed additive shall be sealed and then held in trust by the specific manufacturer, vendor or end - user issue in accordance with an undertaking issued by the latter

    第23條(違規飼料之封存及處期限)查獲涉嫌第二十條各款情形之飼料或飼料添加物,須經?者,應先予封存,由廠商或使用戶出具切結保管。
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