滯后變量法 的英文怎麼說
中文拼音 [zhìhòubiànliángfǎ]
滯后變量法
英文
lagged variable-
This thesis based on the development of heilongjiang ' s green foods, through a large amount of collection and arrangement, to analyze the opportunity of development, some objective problems, course and present condition of heilongjiang ' s green food, point out the countermeasure of development of heilongjiang ' s green food. the thesis is divided into five units : unit 1 analyzes the definitions and characters of green foods, standard and signs of green food. the advantage which green food have and the significance of green food ; unit 2 analyzes the development course and present development situation of heilongjiang ' s green food based on analyzing the starter and development situation of our country, heilongjiang ' s green food past ten years, more work goes before in our country ; unit 3 analyzes the questions required dealing with which exists in development of heilongjiang ' s green foods, it indues that think is too late, the scale is too small, the way of sell is late and false is too much more ; unit 4 draws a conclusion that there is nice chance of developing green food in heilongjiang, based on using a large amount of data ; the last unit provides the ways to turn think, stronger big factories, make the sell way is more than before and draw the lay fastly, and provides appropriate countermeasures to develop heilongjiang ' s green food further i n a healthy way
本文共分五章，第一章在分析了綠色食品的概念與特點的基礎上，對綠色食品的標準與標志進行了界定，並明確規定了綠色食品必須具備的條件，提出了發展綠色食品的意義；第二章在分析我國綠色食品的起步與發展概況的基礎上，對黑龍江省綠色食品的發展歷程和發展現狀進行了分析，黑龍江省綠色食品產業經過十多年的努力，呈現了全省合力抓綠色食品，健康快速發展的好勢頭，並且許多工作都走在全國的前列；第三章從實證著手，分析了黑龍江省綠色食品發展中存在思想觀念滯后、品牌雜、經營銷售方式落後、假冒現象多等若干亟待解決的問題；第四章運用大量數據，得出黑龍江省發展綠色食品的良好機遇，為黑龍江省綠色食品的發展提供了廣闊的發展空間；第五章針對黑龍江省綠色食品發展中存在的問題提出了轉變傳統觀念、壯大龍頭企業、抓好市場營銷、加強綠色食品法規的制定等相應的對策，並對黑龍江省綠色食品的進一步的健康發展提出了新的思路。Secondly, a kind of leading control method on the basis of energy containing in system, which combined the demerits of pid control and neural network control, is presented according to the large hysteresis characteristics of the ph and orp
由於工業現場的ph / orp系統都是滯后很大的時變對象，針對這個特點，本文提出了根據系統中所蘊藏的能量進行超前控制的控制演算法。Regarding the hysteretic properties and time - varying of the system, the scan round performance of the controller, adopt incremental pid algorithm in constant - pressure controlling and combine it with the integral - separated dead - zone algorithm as appropriate for the situation of the measuring system and applies fuzzy self - tuning to control pid controller parameters
由於系統的滯后時變性和控制器的循環掃描工作方式，恆壓控制採用增量式pid控制演算法，結合測量系統實際情況加入積分分離帶死區改進演算法，並對pid參數進行模糊自整定控制，設計了一種參數自整定模糊pid控制器。Third, i adopt all kinds of methods, such as the perpetual inventory method in the calculation of the stock, adding lagged variable in the regression equation, dea in calculation of multiple input variable. the research, which is just a study on regional investment, might supply practical reference to other related researches and administrative departments
三是靈活運用多種定量手段以保障研究的科學性，如使用永續盤存法測算重慶市的資本存量，回歸方程中加入滯后變量解決投資作用於經濟增長存在時滯的問題，採用數據包絡分析法解決多輸入變量的測算問題等。( 2 ) a series of experiments on time scale distortion are made with real river model, inflow and outflow boundary condition, and continuous simulation. by means of analysis of the experimental data on model water level, water - surface gradient, cross velocity, outflow discharge process and the sediment transportation capacity, the main physical reasons for the above hydraulic parameters deviations caused by time scale distortion are illustrated : response delay of model channel storage capacity and rate of water level with time
（ 2 ）採用真實的河工模型和入出流邊界控制條件以及連續模擬的方法進行了有關時間變態率的系列試驗，通過模型水位、比降、流速、出口流量過程線和斷面挾沙力試驗資料的分析，闡明了時間變態引起上述各種水力參數偏離的主要物理原因：模型的槽蓄響應和洪水過程時間變化率的響應滯后。Abstract : according to the characterestic of resistance furnace temperature control, temperature rising one - way control, large time delay and time - variation of parameter, using method of fuzzy compositional rule of inference establish fuzzy model and design fuzzy cntroler. in order to increase control system precision, it gives a fuzzy variable k, and sets parameter self - adjusting fuzzy control system. this system can on line self - adjusting controller parameters according to the error and variations of the error. it makes the system steady precision improved
文摘:根據電阻爐溫控制的特點，即只有升溫單向控制、滯后較大且具有參數時變性，利用模糊推理合成法建立模糊模型並進行模糊控制器設計，為提高模糊控制的精度，引入模糊變量k ，構成參數自調整模糊控制系統.該系統可根據誤差和誤差變化在線自動調整控制器參數，使系統的穩態精度得到改善According to the characterestic of resistance furnace temperature control, temperature rising one - way control, large time delay and time - variation of parameter, using method of fuzzy compositional rule of inference establish fuzzy model and design fuzzy cntroler. in order to increase control system precision, it gives a fuzzy variable k, and sets parameter self - adjusting fuzzy control system. this system can on line self - adjusting controller parameters according to the error and variations of the error. it makes the system steady precision improved
根據電阻爐溫控制的特點，即只有升溫單向控制、滯后較大且具有參數時變性，利用模糊推理合成法建立模糊模型並進行模糊控制器設計，為提高模糊控制的精度，引入模糊變量k ，構成參數自調整模糊控制系統.該系統可根據誤差和誤差變化在線自動調整控制器參數，使系統的穩態精度得到改善Afterwards, in order to decrease the contradiction between the more complex and mass remote sensing image data and relatively slow speed of information extraction, an improved sfim image fusion method is proposed. this modified algorithm is on the base of sfim fusion technique, combines ihs method and sfim method and then replaces the former mean filter by an adaptive weighted mean filter. compared with the results of several common fusion techniques through a set of simulation tests between multispectral images and panchromatic images, it is proved that the new method can get an excellent result for the aim of improving spatial resolution while preserving the spectral information of multispectral images
論文的主要工作和成果包括：在像素層，論文研究了多傳感器數據融合理論及遙感圖像預處理的過程和步驟，歸納了多源遙感圖像像素層融合的常用演算法，並針對目前遙感數據呈海量化、復雜化這一發展趨勢同遙感信息提取的能力和效率滯后這一矛盾，在sfim演算法的基礎上，將ihs變換與sfim相結合，將原演算法中的均值濾波器改進為自適應加權均值濾波器，提出了一種改進的sfim演算法，通過對一組多光譜圖像和全色圖像的雙傳感器融合模擬對比試驗，證明了該演算法在保持原多光譜圖像光譜信息的同時，能夠有效提高融合圖像的空間分辨能力。In complicated with changing irregularly frequent market activity, it makes policy to be demand scientific basis, the getting involved of the warehouse technology of the data has solved the difficulties that are faced in traditional analysis ? ? analysed work load heavy, analysed finally lag behind, unable to go on and analyse, not unable to carry on complicated analysis, unable to offer key the solution, lack weighing apparatus quantized fix indexeses according to commercial habits
在復雜和變幻頻繁的市場活動中，決策更加需求科學的依據，數據倉庫技術的介入解決了傳統分析中的所面臨的困難分析工作量大、分析結果滯后、無法按照商業習慣進行分析、無法進行復雜的分析、無法提供關鍵問題的解決方案、缺乏量化的衡定指標等。Delay is obvious in large body because of its inertia, moment force, stress and gearing. transfer of electical cell increases the delay. this paper points out that the delay can be compensated by using the smith control algorithm. the result of computer emulation proved that a better quality is gained by using the algorithm on heavy nc machine
大慣量物體，由於其慣性，加之傳動鏈長，所需的扭矩大，引起的應變大，加上電氣轉換元件的滯后，故滯後效應明顯.該文提出用史密斯控制演算法將滯后進行補償.計算機數字模擬結果說明，對大慣量有滯后的重型數控機床，應用該演算法能得到較好的控製品質Fuzzy logic control has recently proved to be a successful control approach for complex nonlinear, large delay, multivariab, uncertainty systems which need n ' t construct the controlled object ' s mathematic model, just considers locale operator ' s experience and related expert ' s knowledge as control mechanism and strategy. the past few years have witnessed a rapid growth in the number and variety of applications of fuzzy logic, ranging from consumer products and industrial process control to medical instrumentation, information systems, and decision analysis
模糊控制以其無需建立被控對象的數學模型，以現場操作人員的控制經驗或相關專家的知識作為控制機制和策略，已經成為解決工業生產過程非線性、大滯后、多變量、不確定性等難控問題的一種重要方法，廣泛應用於生產生活的各個領域。Thirdly, with the simplest single - input discrete system as the model, we analyze and discuss the effects for control - delay on the discrete variable structure control systems, and bring forward the design method of discrete variable structure control based on the system state forecast ; simulations show that the above solution avoids adverse influences for control - delay on the performance of variable structure control systems with control - delay, and control effect is fine
第三，本文以最簡單的單輸入離散系統為模型，分析討論了控制量延遲對離散變結構控制系統的影響，提出了基於系統狀態預測值的離散變結構控制設計方法；模擬表明該方法設計的具有控制滯后的變結構系統避免了控制量延遲對系統動靜態的不利影響，控制效果良好。When impact applies on a discrete system in which one of constraints is a constant with coulomb friction, the phenomenon of slip - stick at the point can cause the change of friction and the integration for frictional force during infinitesimal impulsive interval becomes impossible according to traditional impulsive dynamics of discrete systems. by introducing a new dimensional time parameter, first - order momentum - impulse differential equations are obtained and the discussion over infinitesimal impulsive interval is transformed into a piece - wise study on the finite region of impulse
在引入新的無量綱的時間參數后，通過建立相應的動量-沖量的一階微分方程，在趨近於零的沖擊區間的討論變為在有限區間中來分段研究含滑動-黏滯的沖擊過程，得到了受到多點打擊的離散系統考慮庫侖摩擦時的動力學的求解方法，即根據沖擊前的初始狀態無需回到繁瑣的微分方程的求解便可以得到沖擊后系統的動力學響應。First, because pipelines are so complex that controlled object is high order, delay, coupling, nolinear and time - varing, it is difficult to realize closed loop control for it using valid mathematic model. to resolve this problem, the paper presents a fuzzy - pid control algorithm with self - adjusting regulation factor. second, if a moving motor supplied by inverter power is switched to be supplied by power supply, the impact of overload - voltage and overload - current appears
主要針對中、大容量供水系統中，由於供水管網鋪設復雜、彎管多、控制對象具有高階、滯后、耦合、非線性及參數時變的特點，難以利用有效的解析式數學模型進行閉環控制，以及多臺水泵並聯運行時，水泵電機由變頻電源供電向工頻電源供電切換過程中產生的過電壓過電流沖擊這兩個難題，提出了可調整因子fuzzy - pid控制演算法及利用鎖相環控制實現水泵電機由變頻電源向工頻電源的同頻同相平滑切換。So by analyzing the stability of voltage vector and the changeability of current vector, we proposed to construct sinusoidal sequences with the same and delaying ninety - degree phase angles to voltage vector, then to multiply with the current vector respectively to bring about active and reactive power
本文分析了單相系統電壓矢量的穩定性以及電流矢量的多變性特點，提出了對電壓矢量採用構造與之同相位和滯后90相位正弦序列的辦法，並分別與電流矢量相乘從而導出其有功和無功功率。分享友人