sampling error 中文意思是什麼
sampling error
解釋
采樣誤差-
A biopsy could miss such lesions from sampling error, too
活檢會因取材不當而漏診。 -
Firstly introduced the basic theory and method with which the analog signal can be convert to digital form, including sampling theory and course, quantification and quantification error, coding, beside those we discussed some applications of sampling technology, the reason of frequency mixture and the method to eliminate it chapter 4 introduced analog mux - switch, for the reason of simpleness we only introduce it briefly
從第3章開始，對數據採集的基本理論進行討論，首先介紹了模擬信號數字化處理中的基本理論、方法，包括采樣過程、采樣定理、量化與量化誤差、編碼，還討論了幾種采樣技術的應用、頻率混淆產生的原因及消除措施。第4章，介紹了模擬多路開關。 -
In this paper, the operation theory is ntroduced. we research the quasi. synchronous alternative sampling echnology in detail to improve the precision of the instrument and discuss some problem about the plication of this method. we introduce the develop of hardware and software in the whole instrument. at last, we sive out the result of experiment and the analyses of error
文中論述了該電參數測量儀的工作原理，著重研究了提高測量精度的準同步采樣演算法，並討論了該演算法在單片機中應用的幾個實際問題。在此基礎上，詳細介紹了整個儀器的軟硬體開發過程。最後對儀器進行了實驗和誤差分析，給出了實驗結果和誤差分析結果。 -
Usually, this is not easy and requires the trial and error method. this paper designs a cross - flow steam / water heat exchanger and the according system and the sampling card
本文設計了以蒸汽/水為介質的換熱器，以及相對應的系統，並對用到的數據採集卡板作了介紹。 -
It designed signal amplifying circuit, frequency tricking circuit, data sampling and keeping circuit. the choice of 12 bits high accuracy a / d integrated data sampling card made program simply, high flexible and expandable. and to each error which is likely to occur in high voltage capacity type equipment during the monitoring, analysis and judgement are given
在硬體電路實現上，注意選擇信號傳感器；合理設計了信號放大電路和濾波電路；設計了頻率跟蹤電路，數據采樣/保持電路；結合軟體控制選用了12位高精度的a / d轉換器，使軟體編程簡化且具有較高的靈和性和可擴展性。 -
This article has studied the deficiency and shortcoming of various kinds of methods of the parameter measurement of transmission line at present, proposed the measurement under operation on the basis of gps, researched gps application way and error that may appear in the power system synchronal sampling, put forward the parameter computing technology based on the information of both sides of transmission line, which solved some problems that exist in the parameter measurement, especially the problem that exist in the zero - sequence parameter measurement of transmission line with mutual inductance
本文研究了目前輸電線路參數測量的各種方法，分析了其中存在的不足和缺點，提出了基於gps的輸電線路參數在線測量方法，研究分析了gps在電力系統同步采樣中的應用方式以及可能出現的誤差，在同步采樣的基礎上提出了基於雙端信息的線路參數計算方法，較好地解決了輸電線路參數測量中存在的一些問題，尤其是多回互感線路零序參數測量困難的問題。 -
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。 -
The improvement of image characteristic obtaining at real time satisfies the application and supports the adaptive gamut mapping. the sampling and visualization of sample set in different color space show the optic difference and give the error analysis of the color conversion between them. based on the study of the color relation among the color spaces, the visualizing color can be created automatically with conversion formulas
針對當前色彩管理研究缺乏可視化支持的現狀，本文在研究相關理論和技術的基礎上，將可視化技術應用於色彩管理，為其提供模型支持和可視化環境，形成了一套較完整的色彩管理可視化工具。 -
The research on autonomous navigation and orbital keeping technology of geosynchronous satellites : selecting position vector in the inertia space and longitude, latitude, radial errors in the hill equation as state variables, the precision of orbit determination caused by track dynamic model error, sampling period, and sensor measurement and install error is analyzed
同步衛星自主導航與軌道保持技術研究：分別選取慣性空間位置矢量和採用hill方程表示的經、緯、向徑誤差作為狀態量，分析軌道動力學模型誤差、采樣周期以及敏感器測量、安裝等誤差對定軌精度的影響。 -
The sample and hold circuit is employed by the bottom plate sampling technique, which could not only cancel the charge injection error but also eliminate the effect of clock feed - through
采樣保持電路設計採用了電容下極板采樣技術，不僅有效地避免了電荷注入效應引起的采樣信號失真，而且消除了時鐘饋通效應的不良影響。 -
The research results show that the influence of sampling frequency, sampling error of peak value, strobe - position and strobe - width on fft and ifft is obvious
研究發現，超聲信號的采樣頻率、采樣特徵點、閘門位置及閘門寬度對超聲信號的fft及ifft結果有明顯的影響。 -
In order to improve test precision, techniques such as auto - gain control, proper sampling rate select and dithering should be applied into the data acquisition process, and data pre - processing techniques should be used to eliminate data with careless error and correct data with system error
為了提高測試精度，在數據採集中，可以採用量程自動切換、合理的采樣頻率以及加擾技術；對採集的數據，需要進行預處理，主要包括剔除含有粗大誤差的數據和消除系統誤差等。 -
By gender, it was 68 percent of the male respondents, and 66 percent of the female participants - a statistically insignificant difference given the study ' s margin of sampling error of plus or minus 2 percentage points
按性別比例來說，分別有68的男性被調查者和66的女性被調查者是網際網路一組。而這個小小的差別並不具備統計學上的重要意義。 -
For 15mhz immersion focusing ultrasonic testing signal, the proper sampling frequency is 90mhz, the appropriate strobe - width is 1. 2us and the sampling error less than 20 %
本文的試驗分析結果表明，對于中心頻率為15mhz的水浸聚焦探頭，其采樣頻率應不低於90mhz ，閘門寬度為1 . 2us ，特徵點的采樣誤差應不大於20 。 -
Based on the sampling error in the normal random sampling and layered sampling, the methods of determining sample volume and selecting of sampling themes are studied
對於一般隨機抽樣與分層抽樣根據給定的抽樣誤差確定抽樣量，探討樣本容量的計算方法和選擇抽樣檢驗方案的方法。 -
Although the drop was within the range of the sampling error, the upward trend has apparently stopped, which calls for attention
跌幅雖然仍在誤差范圍之內，但升勢就明顯停止，值得注意。 -
The margin of sampling error for all adults was plus or minus 3 percentage points
調查結果誤差為上下三個百分點。 -
Would different sample size for different questions affect the sampling error
問：個別題目的樣本數目會否影響抽樣誤差？ -
Quantitative model and fast estimation algorithm of sampling error for association rule mining
關聯規則挖掘的取樣誤差量化模型和快速估計演算法 -
Both the popularity rating and approval rate of donald tsang have dropped a little, but within the margins of sampling error, in the last two weeks before his technical resignation
05曾蔭權的支持度和支持率在辭職參選前兩星期內有輕微下跌，但都在抽樣誤差?圍之內，支持率保持高企。
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