random disturbances造句
例句與造句
- But vector control strategy ca n ' t effectively overcome parameters changing of motor and load , and random disturbance
但是，矢量變換控制難以解決電動機內(nèi)部參數(shù)變化和負載變化而引起的控制問題。 - One of the important hypotheses of classical linear regression model is that the random disturbances have equal variance
經(jīng)典線性回歸模型的一個重要假設就是回歸方程的隨機擾動項u _ i ，具有相同的方差，也稱同方差性。 - A new coupled - mode theory based on scalar modes is presented for the anisotropic waveguide with random disturbance via helmholtz equation and a modified dielectric tensor
摘要從亥姆霍茲方程出發(fā)，得到了各向異性光波導在弱導近似下的耦合模理論。 - The device sends out various random disturbance signals to the balancing valve circuit of the hydraulic system for the radial head check gate operating at the worst condition by using a computer
模擬實驗裝置根據(jù)工況最為惡劣的弧門啟閉機液壓系統(tǒng)的平衡閥回路制作，采用計算機隨機給出各種干擾控制信號。 - For eliminating random disturbance in the measurement system of dielectric loss , elaborates application on the theory of hard threshold value de - noise based on the wavelet transformation in the measurement system
針對介質(zhì)損耗測量中存在的隨機干擾,闡述了基于小波變換的硬閾值消噪理論在測量系統(tǒng)中的應用。 - It's difficult to find random disturbances in a sentence. 用random disturbances造句挺難的
- Abstract : the application of unknown input fault detection observers ( uifdos ) to the diagnosis of electronically controlled systems in automotive engines with unmeasurable load torque and random disturbances is presented in this paper
文摘:針對汽車發(fā)動機電控系統(tǒng)負載不可測且存在隨機干擾的情況，采用基于數(shù)學模型的未知輸入故障檢測觀測器方法，研究其故障診斷問題。 - Simulation results show that the controller has dual property : on one hand eliminating the uncertainty of system parameters through learning and on the other hand , coping with the random disturbance , thus preferable parameter estimation results and control objective are achiered
仿真表明：控制律一方面通過學習可消除系統(tǒng)參數(shù)的不確定性，另一方面可有效的對付環(huán)境的隨機干擾，從而能夠獲得較好的辯識結果與良好的控制目標。 - Substantively , the complexity that water level is influenced by all of the factors and their strong nonlinear random disturbance . for controlling the variance of model error to reduce the errors , we need to separate the market random disturbances from the random error
實質(zhì)上沖淤河道水位表現(xiàn)的復雜性是由于其中存在著很強的非線性隨機擾動，因此需要有效分離出顯著性隨機擾動，以抑制模型誤差的方差，達到減小誤差的目的。 - In the first part , it discusses how to avoid the random disturbance in the integrated navigation system . the mathematical model of this system is established and the system is simulated with the help of kalman filter and federal filter . the results of the simulation show that both kalman filter and federal filter are effective
第一大部分是討論怎樣消除隨機誤差對船舶組合導航系統(tǒng)的干擾，主要建立了dr / gps /勞蘭c船舶組合導航系統(tǒng)的數(shù)學模型，并用集中式卡爾曼濾波算法和聯(lián)邦濾波算法對其進行了仿真，驗證了算法的有效性。 - So it can resolve the geology problems . this method has the character of reconnoitering deeply , high ability of penetrating high resistance layer , little random disturbance , observing both far and near , observe in different time windows , receiving the geology information in different depth . so this method is widely used in source exploration and engineering measure
該方法以其具有勘探深度大、穿透高阻層能力強、隨機干擾小、可以在遠區(qū)觀測、亦可以在近區(qū)觀測、選擇不同時窗進行觀測、可以獲得不同深度的地質(zhì)信息等優(yōu)點，被廣泛的應用于資源勘探和工程勘察領域，成為引人注目的地球物理勘探手段之一。 - Considering the typical nonlinear characteristics of srm drive system which make the constant parameters of traditional controller unable to adapt to the random disturbance parameters in a large scale , the fuzzy control is introduced to improve its performance . a fuzzy self - tuning controller is designed , which can adjust parameters automatically and improve its static and dynamic performance
鑒于開關磁阻電動機調(diào)速系統(tǒng)顯著非線性造成固定參數(shù)在常規(guī)控制方式下不能很好適應工況大范圍變化的問題，引入了模糊控制來改善其性能，設計了模糊自校正控制器，實現(xiàn)了參數(shù)的在線優(yōu)化調(diào)整，提高了系統(tǒng)的靜、動態(tài)性能。 - Meanwhile , the paper analysis shortage of the methods commonly used heating insulating oil , investigate principles of traditional pid control and fuzzy control , integrats the advantage of two control algorithms , makes use of fuzzy + pid control algorithm to control insulating oil temperature , and has designed fuzzy + pid controller . through matlab simulation , validates that wavelet hard threshold vale de - noise method can effectively reduce the impact of random disturbance
同時,論文分析了常用加熱絕緣油方法的不足,在研究傳統(tǒng)pid控制和模糊控制原理基礎上,綜合兩種控制算法的優(yōu)點,在絕緣油介損測量系統(tǒng)中,提出采用模糊+ pid控制算法對絕緣油溫度進行控制,并實現(xiàn)了模糊+ pid控制器的設計。 - But in analyzing the dynamic characteristics of rolling mill , we find that the system exists nonlinear uncertainty and slow time - variation , which are caused by nonlinear mode and random disturbance . this leads to the approximation of the practical system of the model and parameter and it is difficult to construct the accurate mathematical model . therefore , the routine controlling method is n ' t used any longer
然而，在分析軋機的動態(tài)特性中發(fā)現(xiàn)，由于位置內(nèi)環(huán)的模型中存在非線性元件，系統(tǒng)受到過多外界擾動的影響致使系統(tǒng)中存在非線性、不確定因素及慢時變參數(shù)的現(xiàn)象，推導出的模型結構和參數(shù)只是實際系統(tǒng)的一個粗糟近似，難以建立精確的數(shù)學模型，此時，常規(guī)控制方法已不再適用。 - Besides , the converters have unmodeled dynamics . so the traditional controller for hvdc based on the classical control theory can not meet the requirements in practice . although , pi controllers are widely used in the hvdc systems , they have high sensitive responses to random disturbances , low robust performance , and can not solve some problems in power systems , such as unmodeled dynamics , nonlinear uncertainties
直流輸電線路中的換流器具有很強的非線性，系統(tǒng)的運行工況隨時都會發(fā)生改變，系統(tǒng)擾動發(fā)生的地點、類型及嚴重程度具有隨機性；此外，換流器還含有未建模動態(tài)部分，這些因素使得基于直流輸電系統(tǒng)準靜態(tài)模型的常規(guī)控制器設計方法常常不能很好地滿足系統(tǒng)的實際要求。 - The research indicated that , if the secondary combustion chamber was looked on as a controlled object , with the adjusting valve as a input , the pressure and the temperature of a selected point on the inside wall of the combustion chamber as outputs , then such controlled system would be a strongly non - linear , time varying system with number of random disturbances , which resulted in huge difficulty to build an analyzed mathematics model for the spray burning of the liquid fuel , so that classic control methods were all invalid
研究表明，若將rbcc發(fā)動機的二次燃燒室視為一個控制對象，同時以燃燒室內(nèi)壁面取定點處的壓強、溫度和調(diào)節(jié)閥的開度為輸入輸出變量，則該系統(tǒng)將是輸入?輸出特性非線性很強、隨機干擾嚴重的復雜時變系統(tǒng)。這導致建立燃油噴霧燃燒具體模型的很大困難，從而宣告了經(jīng)典控制方案的失效。