sampling function 中文意思是什麼
sampling function
解釋
采樣函數-
We use b - spline smoothing technique to smooth the characteristic function without changing the integral quantity and get a differentiable weight function. the method considerably improves the quality of sampling points
我們用b樣條磨光技術在不改變積分值的前提下磨光特徵函數，用可微的權重函數代替特徵函數，提高了采樣的質量。 -
In digital relay, the percentage of noise will increase rapidly with the increase of sampling rate when derivation calculus is substituted by sampled difference term. to solve this problem, a new method using fragment function integrated with the least square algorithm is proposed in this paper. the influence of white noise is greatly reduced and the accuracy of the dead angle calculation is nicely improved after adopting the new method
在數字式保護中，如果用差分代替求導將導致噪聲的百分比誤差隨著采樣頻率的提高而劇增，本文對此進行了分析並提出了用分段樣條函數最小二乘法來計算電流波形的導數值，以便在提高采樣率的同時降低噪聲誤差的影響，並將其應用於基於32位浮點dsp的新型變壓器保護裝置。 -
The control system of furnace " s temperature has been widely used in every walk of life, as an important link of repair and manufacture of the electrical equipment such as electromotor transformer etc., soaking lacquer drying craft has some especial requests on drying crafto this article starts with the analysis of drying chamber " s configuration, analyzed its configuration limitation and control function limitation according to the factory " s situation and advances the conception of heated air drying circulation, in addition, this article adopts an intellectualize a / d module, a development sampling tuning - voltage circuit, and presents the method to measure online the insulation resistance of products in order to improve constantly products quality
而浸漆乾燥工藝作為電機、變壓器等電氣設備的修理、製造中的重要環節之一，對乾燥過程的質量要求有一定的特殊性。該文從乾燥爐的結構分析入手，聯繫到工廠的實際情況分析了結構功能缺陷和控制功能缺陷，提出了熱風循環乾燥的概念，同時，選擇了較為先進的a d板卡、熱電阻信號調理板等專業化智能卡，運用數字pid控制技術，構成了一個較有特色的計算機控制系統。此外，該文還從保證乾燥品質量的角度，採用智能化交流模塊和自製采樣調壓電路的方法，提出了在線檢測產修品的絕緣電阻的方法和手段，以確保企業產品質量不斷提高。 -
Does allogroomiog serve a hygienic function in the sichuan snub - nosed monkey to test the hygienic functional hypothesis of allogrooming in the sichuan snub - nosed monkey, we analyzed the distribution of such behavior over the body surface of individuals in the west ridge troop in the yuhuangmiao region of qinling mountains, shaanxi province, china. based on 113 days of observations of the troop, 293 allogrooming bouts were obtained by focal - animal sampling. we divided the body surface of the monkeys into 17 areas
第二章川金絲猴的理毛行為是否符合衛生功能應用目標動物取樣法，在113天的跟蹤觀察（有效觀察時間351小時）的基礎上，收集了293個相互理毛回合（ bout ）的數據，對秦嶺川金絲猴（ rhinopithecusroxellana ）玉皇廟西梁群個體間的相互理毛進行了分析，檢驗相互理毛是否符合衛生功能假說（ hygienicfunctionhypotheses ） 。 -
The system resolutions of the two measurands - temperature and strain - have been obtained by using a 16 - byte sampling card. the distributed demodulation function is also testified
使用16位采樣卡測試了系統對溫度和應變這兩個物理量測試的解析度，並驗證了系統的分散式解調功能。 -
This paper starts the research of the liquid floated pendulous accelerometer testing system according to the engineering. at first, this paper gives the brief introduction of the history and present status of accelerometer and its testing technology, the working principium and math model of the liquid floated pendu - lous accelerometer, and then, decides the binary width pulse force retrim loop as the design proposal of testing system, researches the transfer function of every part in the system emphasizly, analyses the stability of the whole accelerometer testing system from the angle of control theoretics by the open loop transfer function of system, and designed the correcting net, analyses the basal problems such as resolution, sampling restraint, precision and so on, designs the hardware testing circuits such as preamplification, band - pass filter, alternating amplifier, phase sensitive demodulatorn, pulse - width modulation, frequency scale circuit, moment current generator. finally, using the graphics program language labv - iew which is designed for testing field especially by ni accomplishes the solfware design of testing system, realized the testing functions
首先對加速度計及其測試技術的發展歷史和現狀，液浮擺式加速度計的工作原理和數學模型等作了簡要的介紹，然後確定了以二元調寬脈沖再平衡測試迴路為設計方案，並從控制理論的角度進行了分析，著重研究了系統中各部分的傳遞函數，利用系統開環傳遞函數分析了系統的穩定性，同時設計了系統的校正網路;分析了二元調寬脈沖再平衡測試迴路的解析度、采樣約束以及測試精度等基本問題，並按照系統分析的結果設計了包括前置放大、帶通濾波、交流放大、相敏解調、脈寬調制、頻標電路以及力矩電流發生器等測試系統各部分硬體電路，驗證了電路的正確性，最後按照測試系統的要求，採用了美國ni公司專為測試領域所開發的虛擬儀器工具? ? labview作為測試軟體開發工具，利用該圖形化編程語言完成了測試系統軟體部分的設計，實現了測試功能。 -
For fir, after researching window function method and frequcy sampling method, it is suggested that the filter designed from blackman window function is satisfactory, afterward the filter is programmed with reasonable operational structure
再分別對fir濾波器的窗函數法和頻域抽樣法進行模擬分析，從中得出用512點的布拉克曼窗函數設計的fir濾波器能滿足濾波要求，然後選用合理的運算結構對此濾波器編程實現。 -
The switched capaci tor filter is the counterpart of the continue time analog filter " s sampling, it is more adapted to the miniaturization of the circuit and can realize the higher accuracy transfer function, especially the design of the cmos integrated sc filter based on the biquad have advantage of high accuracy, small area, low power consumption, simple architecture and easy to debug. it has important academic and practical means of the sc filter " s research and design
開關電容濾波器是連續時間模擬濾波器的采樣時間等效電路，更適合電路的小型化，同時也實現高精度的傳輸函數，尤其是基於雙二階的cmos開關電容濾波器設計具有高精度、面積小、低功耗和電路結構簡單，易於調試等優點，所以研究和設計開關電容濾波器有著重要的理論和實際意義。 -
In this text, we first do some research on the genetic algorithm about clustering, discuss about the way of coding and the construction of fitness function, analyze the influence that different genetic manipulation do to the effect of cluster algorithm. then analyze and research on the way that select the initial value in the k - means algorithm, we propose a mix clustering algorithm to improve the k - means algorithm by using genetic algorithm. first we use k - learning genetic algorithm to identify the number of the clusters, then use the clustering result of the genetic clustering algorithm as the initial cluster center of k - means clustering. these two steps are finished based on small database which equably sampling from the whole database, now we have known the number of the clusters and initial cluster center, finally we use k - means algorithm to finish the clustering on the whole database. because genetic algorithm search for the best solution by simulating the process of evolution, the most distinct trait of the algorithm is connotative parallelism and the ability to take advantage of the global information, so the algorithm take on strong steadiness, avoid getting into the local
本文首先對聚類分析的遺傳演算法進行了研究，討論了聚類問題的編碼方式和適應度函數的構造方案與計算方法，分析了不同遺傳操作對聚類演算法的性能和聚類效果的影響意義。然後對k - means演算法中初值的選取方法進行了分析和研究，提出了一種基於遺傳演算法的k - means聚類改進（混合聚類演算法） ，在基於均勻采樣的小樣本集上用k值學習遺傳演算法確定聚類數k ，用遺傳聚類演算法的聚類結果作為k - means聚類的初始聚類中心，最後在已知初始聚類數和初始聚類中心的情況下用k - means演算法對完整數據集進行聚類。由於遺傳演算法是一種通過模擬自然進化過程搜索最優解的方法，其顯著特點是隱含并行性和對全局信息的有效利用的能力，所以新的改進演算法具有較強的穩健性，可避免陷入局部最優，大大提高聚類效果。 -
First, the harmonic analysis method based on fft is discussed, and some practical issues in the application of fft are investigated. the factors which affect the calculation precision of harmonics, such as sampling and weighting of window function, are analyzed, and then the instructive conclusions for designing voltage monitor are obtained
首先闡述了基於fft的諧波分析方法，對fft實際應用中的問題進行了研究，通過實際算例探討了采樣方法、窗函數加權等影響諧波計算精度的因素，得到了對電壓質量監測儀的設計具有指導意義的結論。 -
The integrated response function of nuclear logs depends not only on the response function of the instrument, but also on the logging velocity, sampling rate and recording instruments
核測井曲線的綜合響應函數不僅取決于儀器的響應函數，而且受測量速度、采樣率，地面儀器記錄方式等因素的影響。 -
We propose in this paper an evaluation method for the transient performance of das, through the period signal, by utilizing the much smaller difference than sampling period between the multi - periods of signal and the multi - sampling periods, getting shorter equivalent sampling period ( i. e. higher equivalent sampling rate ), which is derived from input signal period and sampling period, and then, the problem that how to get the transient performance of das has been solved. the transfer function of das is then evaluated and identified, and practical test results are also presented
本文介紹一種方法，通過對其加載特定的周期性輸入信號，使用采樣周期的整數倍和信號周期整數倍間的微小偏差，獲得比實際采樣周期小得多的等效采樣周期，從而解決了數據採集系統瞬態響應特性的獲取問題；並進而獲得了數據採集系統傳遞函數的辨識和評價結果，實現了數據採集系統瞬態特性的總體評價。 -
By sampling in different filter layer and analyse of water head damage in all sampling point, i draw a condusion about filter function of porcelain sand filter is superior to the general filters
通過濾層分層取樣，對各取樣點的水頭損失的分析，得出瓷砂濾料較一般濾料過濾性能優越的結論。 -
This part offers the correlative waveforms and data through debugging the hardware function under real - time sampling mode and random sampling mode, makes error analysis, finds the reasons that cause error, and gives some solutions to improve the performance of the circuits
分別在實時采樣方式下和隨機采樣方式下對整個硬體電路的功能進行調試，給出了相關波形、數據，並對結果進行分析，找出一些誤差產生的原因，提出相應的改進方法。 -
Based on the observation data obtained from 69 sampling sites of different age class forests, and by using biomass expansion factor function, the regression equations of stand biomass and volume of the main forest forests in pearl river delta were built, and the regional forest biomass and its dynamics were estimated on the basis of forest inventory data
摘要利用生物量轉換因子連續函數法，通過69組不同齡級的森林樣地實測數據，擬合了珠江三角洲主要森林類型的生物量和蓄積量之間的回歸方程，並結合3個時段森林清查資料，估算了區域森林生物量及其動態。 -
And a kind of 16 - step automatic selective programmable amplifying circuit is designed in volume resistivity measuring circuit, so as to handle sampling little and broad signal. the control and disposal system with the core of microchip at89c55wd is analyzed on chapter 4. main function unit such as the interface circuit of lcd display and keyboard, the interface circuit of micro - printer, real time clock ds12c887, and hardware anti - jamming technique are discussed
本文還設計了以at89c55wd單片機為核心的控制處理系統的外圍介面電路及其軟體，對主要功能部分進行了分析，主要包括：鍵盤液晶顯示介面及界面設計、微型印表機介面、實時日歷時鐘晶元ds12c887 、單片機與單片機及單片機與上位機的通信設計以及控制系統硬體抗干擾措施等。 -
In view of the fact that the genetic algorithm of stochastic programming based on random simulated technology has succeed greatly, this paper points out that changing parameters of genetic algorithm can obtain a sequence of optimum values of goal function. taking these genetic algorithm values as sampling data, we can get fitting optimum function by using multivariate spline regression and get the lipschitzs constant of the fitting optimum function. so for any chance constrained programming problem, we can get its interval estimate
鑒于基於隨機模擬技術的遺傳演算法在求解隨機規劃問題上的優越性，本文指出，改變遺傳演算法的參數條件，在此基礎上求得機會約束規劃的若干個最優值，以這些最優值為樣本點，利用多元樣條回歸，擬合得到最優值函數，進而求出最優值函數的lipschitzs常數，從而對于任一機會約束規劃問題，都可以得到它的一個區間估計。 -
Through describing the space sampling process of ccd, the composing factors of modulate transfer function ( mtf ) of ccd integral sampling process are analyzed. meanwhile, an effective method to analyze the mtf of discrete sampling image system is put forward and is used to analyze and compare mtfs of sub - pixel image system and singlechip ccd system. as a result, definitions of ccd optical transfer function ( otf ) and optical mtf are presented and effective methods to measure ccd mtf are brought forward
本文通過對ccd器件空間采樣過程的描述，詳細分析了ccd積分采樣過程調制傳遞函數的構成要素，提出了分析離散采樣成像系統調制傳遞函數的有效方法，並用該方法分析比較了亞像元成像系統與單片ccd系統的mtf ，給出了ccd器件光學傳遞函數（ otf ）和光學調制傳遞函數（ mtf ）的定義，提出了檢測ccd調制傳遞函數有效方法，採用幾種不同測量方法測定了tdiccd的調制傳遞函數，並進行了比較分析。 -
The development, function and requirement of subway substation automation system were briefly introduced in this thesis. the principle and calculating method of current differential protection was analyzed in detail. and the synchronized data - sampling methods used in this protection were analyzed
本文簡要介紹了地鐵變電站自動化系統的發展概況及其功能要求，詳細分析了電流縱差保護的原理和計算方法，並對比分析了光纖電流縱差保護的各種數據同步方法。 -
A sampling function structural controller with nonlinear convergence is used to control the ionic beam that its initial condition follows kapchinskij - vladimiskij ( k - v ) distribution
摘要根據束暈混沌控制策略方法，利用具有非線性、收效性的抽樣函數構造控制器，對初始條件遵從k - v分佈的離子束進行了控制研究。
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