multi stage sampling 中文意思是什麼
multi stage sampling
解釋
多級抽樣法-
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。 -
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。 -
Multi - stage sampling
多階段抽樣 -
Multi stage sampling
多級抽樣法 -
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。
分享友人