時間抽樣法 的英文怎麼說

中文拼音 [shíjiānchōuyàngfǎ]
時間抽樣法 英文
time sampling method
  • 時 : shí］Ⅰ名1 （比較長的一段時間）time; times; days:當時at that time; in those days; 古時 ancient tim...
  • 間 : 間Ⅰ名詞1 （中間） between; among 2 （一定的空間或時間里） with a definite time or space 3 （一間...
  • 抽 : 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） ...
  • 樣 : 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
  • 法 : 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...
  • 時間 : time; hour; 北京時間十九點整19 hours beijing time; 上課時間school hours; 時間與空間 time and spac...
  • 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理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：修正大樣本區間jeffreys原則下置信區間二是針對已給定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定下，算出了最優的第一階段觀測次數（抽樣量） ，大量數據表明，本文考慮的方法性態良好，具有應用價值。
  2. Two block time - recursive algorithms are developed for the efficient and fast computation of the 1 - d rdgt coefficients and for the fast reconstruction of the original signal from the coefficients in both the critical sampling case and the oversampling case. the two algorithms are implemented respectively by a unified parallel lattice structure. and the computational complexity analysis and comparison show that the proposed algorithms provide a more efficient and faster method for the computation of the discrete gabor transforms

    首先論證了一維rdgt系數求解演算法和由變換系數重建原信號演算法，不論是在臨界抽樣條件下還是在過抽樣條件下，都同樣具有塊時間遞歸特性，並提出了相應的塊時間遞歸演算法及其并行格型結構實現方法，計算機模擬驗證了并行格型結構實現的可行性，計算復雜性分析與比較也說明了rdgt塊時間遞歸演算法的并行格型結構在計算時間方面所具有的高速和高效性能。
  3. 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

    在基於中頻采樣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樣量化，比較分析了幾種采樣的方式，其中最為重要的是帶通信號采樣定理；然後探討了軟體無線電的一個重要基礎，即多采樣率信號處理，重點討論其最基本的兩個過程抽取和內插以及抽取器和內插器的實現；接著介紹了結構簡單、適用於一級抽取的cic濾波器和適用於做2倍抽取的半帶濾波器；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。
  4. By using questionnaire, i investigated 950 students, from grade 5 of primary schools to grade 3 of middle schools, of 8 schools located in changsha city and in lengshuitan district, yongzhou city. lots of materials in this paper were collected by group meeting and individual conversation, including many aspects of their outside reading : the interests and the motives, the time and, the content, the habits and the methods, the efficacy and the guidance, etc. a thorough, detailed analysis. and research of the present situation of outside reading of students was conducted in the current free educational period

    本文採用問卷調查法，以長沙市和永州市冷水灘區八所學校的小學五年級到初中三年級共950名學生為對象抽樣調查，並輔以座談和個人談話法收集了大量的資料，從課外閱讀的興趣與動機、時間與內容、習慣與方式、效能與指導等方面對當前義務教育階段的學生課外閱讀現狀進行了較全面、具體的分析與研究。
  5. When it comes to preserving its history, toronto is exceptionally proud. a new attraction, the pier, recently opened on the waterfront. housed in an historic warehouse, the pier explores torontos maritime history

    這些雕塑題材廣泛，表現手法多樣，既有具像的，亦有抽象的，它們在美化城市的同時，也給加拿大的雕塑家們提供了施展才能的廣闊空間。
  6. Canadas largest theme park was built in 1980 on 300 acres of land just north of toronto. it features more than 180 attractions and 50 thrilling rides, including canadas only suspended roller coaster and the largest outdoor wave pool in the country

    這些雕塑題材廣泛，表現手法多樣，既有具像的，亦有抽象的，它們在美化城市的同時，也給加拿大的雕塑家們提供了施展才能的廣闊空間。
  7. By sampling survey method, from the aspects of bibliographical availability, the ratio of book forecasting, fields for description, description format, acquisition costs etc., the paper makes a comparative analysis among the main chinese books acquisition bibliographies, including xinhua book news, cip data, national new books information, and bibliographies compiled by publishers, and hope can provide useful experience information for the selecting of library acquisition bibliography

    摘要本文採用抽樣調查方法，對新華書目報（社科版與科技版） 、 cip數據、全國新書目和出版社自編書目等國內主要中文圖書采訪書目，從書目可供性、預告率、圖書預告征訂的實際可供時間跨度、著錄欄位、著錄格式（排版顯示格式） 、採集成本等方面進行比較分析，為落實《圖書館采訪工作規范》中的「選擇出最適合於本館使用的書目」提供借鑒。
  8. To obtain the prior distributions of parameters by bootstrap, i proposed the integrated sampling method to generate bootstrap samples. the method simulates a markov chain to describe the state changing procedure based on the failure time sampled by monte carlo method. and the posterior distributions of parameters are obtained by markov chain monte carlo ( mcmc ) method

    為了應用自助方法確定參數驗前分佈，提出了運行故障時間和狀態的綜合抽樣方法生成自助樣本，該方法基於試驗數據用蒙特卡洛方法對故障時間進行抽樣，在故障時間抽樣值的基礎上，模擬馬爾可夫鏈表示系統狀態變化過程。
  9. The present study aims to examine : ( 1 ) the general characteristic of bully / victim problem in primary and junior middle school ; ( 2 ) how children school behavior, peer relationship, self - esteem, loneliness, depression, anxiety vary across gender, grade, bully / victim status ; ( 3 ) how well can the frequency and duration of bullying / victimization predict children ' s school adjustment and mental health. date were collected via a questionnaire battery and social competence scale. the participants were 827 students from grade 3, 5, 7, 9 in the four primary and junior middle schools

    本研究探討的主要問題包括中小學欺負發生的基本特點，不同性別、年級、欺負受欺負地位兒童的學校行為、同伴關系、自尊、孤獨、壓抑、焦慮等各方面的特點，兒童欺負受欺負頻次及持續時間對兒童的學校行為、同伴關系、自尊及心理健康狀況的影響，本研究採用分層整群抽樣法，用問卷法（ olwues欺負問卷、自尊問卷、焦慮量表、壓抑量表、孤獨量表）和社會測量法（班級戲劇、同伴提名）對827名中小學生（包括小學三、五年級和初中一、三年級）進行了調查。
  10. A type of survey design in which one sample is drawn from the population at a point in time

    一種調查設計方法.每一個時間點從人口中抽取一個樣本
  11. The following algorithms have been proposed and tested in the thesis : 1 frequency selective fading : combine the isomorphism between the input space and the output space and propose a new approach to blind equalization of the channel. compared with conventional methods, the new approach offers lower computational complexity, better performance, and more robust against the over - determination of the system order ; 2 time selective fading : a new approach to the equalization of time selective channel based on the zero - forced equalizer is proposed which is more simple in its structure of algorithm ; 3 time - varying channel : using the instantaneous mean value changes of the output signal to extract the information of channel variations and model it using ar model, kalman filter is then employed to track channel variations, it bears faster ability in tracking the variation of tv channels ; based on the isomorphism between the inputs and the outputs and some of the approaches using in mimo system, a new algorithm of equalization of simo time - varying channel is proposed, which also share the merits of being robust against the over - determination of the system order ; model the time - varying channel using the multi - resolution decomposition wavelets, and then a blind identification method based " on the model is proposed ; at last, a new model for equalization and identification of mimo system is proposed

    主要工作在以下幾個方面： 1 、針對頻率選擇性衰落通道：結合輸入輸出空間同構關系提出一種新的頻率選擇性通道均衡方法，與傳統方法相比，該方法計算量更小，收斂速度更快，性能更優，且對系統階次的過確定表現穩健，具有實際均衡應用價值； 2 、針對時間選擇性衰落通道：提出一種基於迫零均衡的時間選擇性通道均衡方法，演算法結構簡單； 3 、針對時變色散通道：利用瞬態均值曲線提取通道時變信息，對之ar建模，利用卡爾曼濾波器跟蹤時變通道抽頭變化，可以快速跟蹤通道變化；基於輸入輸出空間之間的同構關系以及多輸入多輸出系統的處理方法，提出了新的單輸入多輸出色散時變通道均衡與識別演算法，同樣具有對通道階次過確定保持穩健的優點；結合小波多解析度分析提出一種基於小波模型的通道盲識別演算法；研究時變的多輸入多輸出系統的盲均衡與盲反卷積問題，給出一種時變系統處理模型。
  12. This second investigation according to the principle that samples randomly, distributing considering nation and area, with uniform method and standard, same time registers population to 15 years old of above 1062011 people undertake investigating, actual and respondent population 950356 people, respondent rate 89. 49 %, through uniting an input personal computer is analysed, the result makes clear, rate of countrywide hypertensive sicken was 1991 11. 44 %, among them diagnose hypertension is 4. 13 %, critical hypertension 7. 31 %, as comparative as census of before two whole nations, hypertensive sicken rate shows ascendant trend in our country, the person that reckon completely state - owned hypertensive patient needs treatment is person of 9 ten million

    本次調查按照隨機抽樣的原則，並考慮到民族和地區分佈，以統一的方法和標準，同一時間對15歲以上注冊人口1062011人進行調查，實際應答人口950356人，應答率89 . 49 % ，經過統一輸入微機分析，結果表明， 1991年全國高血壓患病率為11 . 44 % ，其中確診高血壓為4 . 13 % ，臨界高血壓7 . 31 % ，與前兩次全國普查對比，高血壓患病率在我國呈上升趨勢，估計全國有高血壓病人須治療者為9千萬人。
  13. Integrating multirate signal processing theory and classical spectrum estimation theory, a brand new multiresolution spectrum theory is provided and a special algorithm is discussed in great detail. the polyphase decomposition theory is also applied to optimize the algorithm and improve the computing efficiency

    本文結合多抽樣率信號處理理論和傳統譜估計理論，提出了嶄新的多分辨譜估計理論，並給出了具體的實現演算法，解決了譜估計中如何達到頻率解析度和時間解析度的最佳組合的問題。
  14. At the same time, i discover the relations between the m. west method and gonden et al method in the discussing of the information losing

    並且在討論抽樣過程中模型參數的信息損失問題時，發現了m . west和gondenetal方法之間內在的聯系。
  15. Shengzhou tie industry, haining leather industry and yongkang metal industry ~ the three typical industries with different history are selected for our research purpose from zhejiang province, the comparatively more developed area in china. the job included interviews of 20 typical enterprises and 431 cluster growth - influencing - factors related surveys of smes. the government policies and regulations supporting smes cluster growth development have also been collected

    本論文在中小企業經濟較為發達的浙江省選取了三個起步時間不同的典型產業，即嵊州領帶、海寧皮革和永康五金產業，通過抽樣調查方法對三個典型產業的20家典型中小企業進行了實地訪談，完成了三個產業的中小企業集群化成長影響因素的431份有效問卷，收集了地方政府支持中小企業集群化成長的相關政策措施，得到了我國區域產業集群的形成與中小企業成長方面系統性較好的第一手資料。
  16. The methods taken in the two periods are different, the former is of a study of the original literatures by describing and commenting on them ; while the latter is the content analysis by selecting a sample from the original literatures

    研究框架方面，著重研究兩個顯著的時間段， 「解放前」和「新時期」 ；研究方法方面，兩個時段分別採用「文獻評述」的原典式研究和「文獻抽樣」的內容分析。
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