stage sampling 中文意思是什麼

stage sampling 解釋
分段隨機抽樣
  • stage : n 1 講臺；舞臺；戲院，劇場；〈the stage〉戲劇，戲劇藝術；戲劇文學；〈the stage〉戲劇業；劇壇。2 ...
  • sampling : n. 1. 取樣（品），取標（本）〈指行動或程序〉。2. 樣品，標本。3. 剽竊拼湊歌曲。
  1. In addition, a low - pass filter can be employed prior to the digital - to - analog ( d / a ) stage to smooth the stairstep effect resulting from the combination of a low sampling rate and quantization

    另外，在數模轉換（ d / a ）級前用低通濾波器可以平滑因低的抽樣頻率和量化造成的階梯效應。
  2. Fpga and dvb standard are introduced firstly, dvb - c standard and composition of its system are analyzed completely, development of modulator structure and dvb - c digital modulator composition are presented, more over, analysis of respective modular are given. then, principle of dvb - c digital modulator system are presented, they are error control technique 、 mqam 、 nyquist rule and root raised cosine filter 、 window design method for fir filter 、 multi - rate signal processing ( integer interpolating, conversion of fractional sampling, equal conversion of net structure, polyphase structure for filter, poly - phase structure for interpolator, multi - stage implementation of samplying conversion ) 、 distrubited algorithm 、 cic filter 、 dds 、 cordic algorithm

    接著，專門利用一個章節闡述了dvb - c前端調制系統原理，他們了差錯控制技術、多進制調制（ mqam ） 、 nyquist準則與平方根升餘弦濾波器、有限沖擊響應濾波器的窗函數設計法、多抽樣率信號處理包括（整數倍內插原理、分數倍抽樣率轉換、網路結構的等效結構、濾波器的多相表示、內插器的多相表示、抽樣率轉換的多級實現） 、分散式演算法、 cic濾波器、直接數字頻率合成（ dds ） 、 cordic演算法。
  3. The content of fixed ammonium, capacity of fixing - ammonium, available fixed ammonium, kinetics of ammonium fixation and release of fixed ammonium of chief upland cultivated soils in hunan province were studied by using the method of field investigation and sampling, laboratory incubation and analyses. the seasonal change of fixed ammonium content in soil and _ its bioavailability in different growth stage of huanghuacai by use of field plot experiment

    本文通過野外調查取樣、室內培養試驗和分析測定，研究了湖南省主要旱耕地土壤的固定態銨含量、固銨容量、有效性固定態銨含量以及土壤對銨離子的礦物固定和土壤固定態銨釋放的動力學特性，通過田間小區試驗，研究了不同施肥結構下土壤固定態銨在黃花菜生長期間的動態變化規律及其生物有效性。
  4. Prevent problems at sampling and production stage

    在打樣和生產階段及時防止問題發生。
  5. A type of probability sample in which aggregations of sampling units, called clusters, are sampled at some stage in the process

    是一種將樣本單元聚集在一起的隨機抽樣法.樣本群在抽樣的某一步驟被抽出
  6. In chapter 1, the author first study the two - stage confidece intervals for the variance of a normal distribution, then work out the optimal sample size of the first stage by numerical computations and establish a proof for the non - existence of fixed - size sampling

    在第1章里，作者首先研究了正態總體方差的兩步置信區間，並用數值計算的方法給出了第一步的最優抽樣量，且證明了固定樣本抽樣的不存在性。
  7. Study on the second stage sampling method of two - stage sampling survey for waterway transportation volume

    水路運輸量抽樣調查中的第二階抽樣方法
  8. Multi - stage stratified cluster sampling with proportional allocation was used to determine the study population, which was equal to approximately 0. 5 % of all students in that age group in taiwan

    本研究以結構性問卷進行資料收集，以分層集束抽樣方法，依國中、高中、高職、專科（五專的一至三年級）等類別分層，按學生人數比例，抽取總學生人數的0 . 5 %為研究樣本。
  9. The proposed algorithm for knapsack problem is based on mimd. the sort algorithm by sampling is introduced in the sorting stage. the stages of generating subset - sum and searching are also optimized

    并行背包演算法基於mimd結構，在排序過程中引入基於采樣的排序演算法，然後對子集和生成和搜索過程加以優化。
  10. Multi - stage sampling

    多階段抽樣
  11. Multi stage sampling

    多級抽樣法
  12. Two - stage sampling

    二階段抽樣
  13. Using stratified two - stage sampling, collaborated with the nature of processed data and hierarchical cluster, the design can fairly satisfy the requirements of different levels regarding to the economic development of yunnan province and its sampling technology

    摘要為適應雲南省經濟體制的發展，提高應用抽樣調查技術的水平，在考慮雲南省個體或私營企業有關調查數據特點的基礎上，設計了具有針對性的自然分層與聚類分層相接合的分層二階抽樣方案。
  14. Two - stage sampling has only one chance of using the information provided by samples to determine the following plan. pure sequential sampling, however, could use sampling size sparingly. in addition, in some cases, pure sequential procedures have to be applied to acquire the confidence intervals which meet the demands

    兩步抽樣，只有一次機會利用樣本信息決定今後計劃，採用純序貫則可使平均抽樣次數節省，另外，在一定的分佈族中必須採用純序貫才能取得滿足要求的區間估計。
  15. Under 0. 35um si - cmos process, considering the trade off of accuracy and speed in the adc, 2. 5 - bit were converted in the first stage of the pipeline. using the improved calibration scheme and full difference structure and bottom - plant sampling technique to reduce the errors of the 10 - bit ( 2. 5 + 1. 5 5 + 3 ), 100msample / s pipeline adc

    在0 . 35 m工藝水平下，通過折衷考慮提高系統線性度和降低功耗的要求，將流水線第一級精度取為2 . 5位，採用改進的冗餘位演算法，並結合全差分結構，下底板采樣等技術對一個（ 2 . 5 + 1 . 5 5 + 3 ）結構的10位100msample / s流水線adc系統進行校正。
  16. Using a multi - stage cluster sampling design, each of the three cities selected 21 secondary schools with a probability proportional to size to participate in the study

    運用多階段集群抽樣方法，各參與城市的所有普通中學，按學校學生人數比例作為學校抽樣機率，每地區抽出21間學校。
  17. Methods centers of disease prevention and control in three parts of china had been sampled by two - stage stratified sampling method to investigate the fulfillment degree of quality and quantity of the treatment management of hypertension patients in community and its influencing factors

    方法運用分層抽樣、問卷調查的方法，獲得社區高血壓患者治療規范管理的數量完成程度和質量達標程度及相應難點。
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