策動信號 的英文怎麼說
中文拼音 [cèdòngxìnháo]
策動信號
英文
drive signal-
Depend on the comprehensive analysis and study of the structure, principle, and exterior characteristic of the motor, through the methods of system modeling and digital simulation analysis, two kind of control device that work for the low voltage ( lvdc ) and the high voltage ( hvdc ) in avigation are researched respectively. point to the control technique of close - loop speed stabilization at a limited adjustment speed range, we bring out the close - loop speed control method that using the rotor position sensor indirectly measure the speed of the motor
在全面分析了稀土永磁無刷直流電動機的結構特點、工作原理、運行方式以及外部特性的基礎上，通過系統建模和數字模擬分析，分別針對航空低壓直流（ lvdc ）和高壓直流（ hvdc ）兩種電動機構用永磁無刷電動機，在小范圍轉速連續調節下的閉環穩速控制技術進行了詳細理論研究，提出了利用轉子位置傳感器信號間接測量電機轉速進行電機轉速閉環穩速控制的策略。The hardware mainly consists of three parts : signal pre - amplifying and conditioning circuit is used to amplifying the microseismic signals which have detected, signal processing and target identifying circuit based on singlechip is used to convert the analog signals which have been amplified to digital signals and go through signal analysis, processing to identify the moving target, the sending and receiving setting is used to send the identifying result to the decision - making and he can take relevant action according to the result
硬體主要由三部分組成：信號調理電路對檢測到的微弱地震動信號進行放大；基於單片機的信號分析與目標識別電路將放大后的模擬信號進行a d轉換，進一步將得出的數字信號分析、處理，實現目標識別；識別結果發射與接收裝置將識別結果發射給決策者，由其根據接收結果採取相應的措施。The automatic identification of the modulation types has been applied to many fields such as source identification, interference identification, radio interception, - electronic countermeasures, etc. the modulation recognizer based on the decision - theoretic approach and the constellation diagram is proposed and the signal ' s kurtosis is used as the indicator to differentiate the analogue modulation from the digital modulation
通信信號調制類型的自動識別廣泛應用於信號確認、干擾辨識、無線電偵聽、電子對抗和信號監測等領域。本文提出基於決策論與星座圖的綜合調制識別器，使用信號的峰度區分調制類型是模擬調制還是數字調制。The reassigned smoothed pseudo wigner - ville distribution ( rspwvd ) is introduced, which has less interference and higher resolution than other time frequency distributions like wigner - ville, choi - williams etc. it is used to detect the multi - knocking of engine such as cylinder, piston pin, valve, crank bearing, connecting rod bearing and jib knocking. a new fault diagnosis technique based on the rspwvd for the engine multi - knocking problem is proposed. by comparing the bispectrum and bicoherence of the gear vibration signals, it is demonstrated that bispectrum has an advantage over bicoherence for feature extraction of such signals
第四章首次引入一種重分配方法，得到干擾項少而解析度高的重分配平滑偽魏格納維爾分佈（ rspwvd ） ；對發動機曲軸主軸承響、連桿軸承響、活塞銷響、活塞敲缸響、氣門響和挺桿響等常見機械異響故障振動信號特徵進行了全面地比較分析；通過對各種異響故障特徵信號的分析研究，提出基於rspwvd的發動機多異響故障診斷策略，利用該策略可以準確識別不同的發動機異響故障。Digital simulations reveal many valuable characteristics of the power system low frequency oscillation. the limit of conventional analysis and the appearance of new technique such as wams together with the advance of the nonlinear theory, require a new method for oscillation research of power grid, which can combine small and large disturbances analysis effectively
論文指出，由於傳統小信號穩定分析方法的局限性，及動態監測設備和非線性理論等新技術與理論的迅速發展，有必要研究新的振蕩分析方法，以更加有效地揭示互聯系統小擾動、大擾動后的振蕩機理，並研究相應的控制策略。The potential applications of amr include both civil and military communication, especially non - cooperative communications and communication confrontation, such as identifying signals, supervising signals, distinguishing interference, electronic confrontation, analyzing military threat, etc. on the basis of our analysis to the existing research on feature abstraction, the related feature abstraction methods are optimized in this paper, resulting several effective methods such as the feature abstraction based on transformation domain, stepped voltage level analysis, normalized carrier - free spectral energy analysis, squared signal and fourth powered signal analysis, etc. both the decision theory based on recognition algorithms and the artificial neural network ( ann ) based on recognition algorithms is analyzed, and the former is selected as it is more appropriate for this research
調制類型的自動識別廣泛應用於民用通信與軍用通信，尤其是對于非合作性通信、通信對抗，比如：信號確認、信號監控、干擾辨識、電子對抗、軟體無線電、電子救援、通信對抗、軍事威脅分析等。本論文在分析現有研究的基礎上，借鑒了已有的特徵提取方法，對相關調制類型特徵提取方法進行了優化，使用了一些有效的方法，如基於變換域特徵提取方法、梯層電平分析方法、剔除載波后的歸一化頻域能量分析方法、信號平方后的頻譜分析方法、信號四次方后的頻譜分析方法等。通過對基於決策理論和基於人工神經網路兩種識別演算法進行分析，本論文選擇了較適合的基於決策理論的識別演算法。The abrupt change informatiom can be obtained through decomposing and reconstruction of the vibrating signal by wavelet packet ; therefore the fault condition of the hydro - generator unit can confirm and provide decision support for diagnosing the vibration fault of the unit
運用小波包分析對振動信號進行分解與重構，可以獲得振動信號的突變信息，即可以獲得機組振動的故障狀況，從而?診斷機組振動的故障狀況提供決策支援。1 ) if bank capital are forbidden thoroughly to get into stock market, it will bring low profit on monetary market, constrict the development of capital market and affect the transmission of monetary policy ; 2 ) vice versa, allowing bank capital to flow into stock market too early may also lead to unfavorable effects, such as endangering financial stability, disturbing financial order and constraining the development of economy
（ 1 ）限制銀行資金入市，造成了貨幣市場收益率低下，商業銀行、保險公司在貨幣市場上融出資金基本無利可圖，只好通過各種途徑違規進入股市；使資本市場失去資金支持，不僅造成市場流動性不足，還因缺乏基準利率參照而難以形成合理的定價機制，制約了資本市場的發展；影響貨幣政策的傳導，貨幣市場與資本市場的關聯性低，貨幣政策信號受阻，傳導路徑相對單一，貨幣政策效應的時滯加大。In this paper, a new control strategy based on the adaptive deadbeat voltage space vector is presented. this control scheme has a lower sample frequency and a smaller difference between switch frequency and sample frequency. it has many advantages, such as producing zero vectors organically, tracing exactly, non - shaking, etc. and its dynamic response is better
對于電能質量調節器來講， pwm跟隨指令參考信號的控制性能在很大程度上影響著裝置的補償效果，本文選擇無差拍電壓空間矢量控制為系統控制策略，這種控制方法具有采樣頻率低，開關頻率與采樣頻率的差距小，能有機地產主零矢量、跟蹤精確以及無抖振等優點，動態響應快。Based on two fault diagnosis instrument systems for rolling bearing and car, several diagnosis strategies using integrated intelligence have been brought forward. applied methods that fault feature is extracted from high frequency resonance signal have also been presented. many experiment results have shown the effectiveness of these methods
以滾動軸承和車輛故障診斷儀器系統為研究背景，提出了幾種集成智能故障診斷策略和從高頻共振信號中提取故障特徵的實用方法，並充分利用這些方法對滾動軸承和車輛的多種故障診斷進行了實驗研究，證明了這些診斷方法的有效性。It can receive signals from sensors, generate commands based on demands, and send them to executors. and, it can accept remote commands through networks, telephone, gsm short messages or other ways
控制終端接收來自傳感器的信號，並根據控制策略對執行器發送控制命令，從而實現家居自動化;同時，還可以通過網路、電話、簡訊等方式接收來自遠程的命令，實現遠程控制。In the light of the signals of roll angle and water level, we can control the air valve, and use this control method to simulate the controlled passively anti - rolling tank. simulation results indicate that this control strategy is feasible. the controlled passively anti - rolling tank can work in the wide frequency range
控制策略是根據橫搖角度和邊艙液位信號的變化來對氣閥進行控制，採用這種控制策略對可控被動式減搖水艙進行了模擬研究，結果表明所控制策略是行之有效的，可控被動式減搖水艙能在更寬的頻率范圍內達到較好的減搖效果。The main contents of this thesis include : ( 1 ) summarize and analysis of the theories on vibration transmission through rolling element bearings ( 2 ) based on the threshold setting and signal ’ s statistical approach, a method for solving the problems of denoise was developed ( 3 ) using sparsity and clustering, the method and hypotheses for underdetermined blind source separation was studied ( 4 ) the method based on potential function clustering was given for underdetermined blind source separation of noisy signals based on the assumption that the input distribution is sparse and the mixture procedure is linear, the attenuation matrix and the delay matrix were estimated by clustering. the approach was experimentally illustrated for the case of m = 2. the separation of the signals from bearing test bed proved that the given methods are available and reliable
在需求分析和研究現狀分析的基礎上，本論文針對如下內容進行了重點研究: （ 1 ）以滾動軸承為例，對旋轉機械振動信號的傳輸進行了歸納分析; （ 2 ）通過設定某一門限並研究信號間的統計特性，研究了旋轉機械振動信號的盲源分離過程中噪聲消減策略; （ 3 ）應用稀疏信號分析和聚類分析方法，對盲源分離中欠確定問題的假設條件進行探討並對分離方法進行了分析; （ 4 ）採用基於勢函數聚類分析的方法，研究了欠確定前提下含噪聲測量過程中信號盲源分離方法。With an introduction of the moving block system applied in wuhan rail transit project, the author analyzes atc operation mode which is based on moving block technique, and fallback mode, an auxiliary safety operation when fault occurs in moving block system, finally describes the failure management in the operation of the 1st phase of wuhan urt line 1
摘要以武漢軌道交通1號線一期工程信號系統的移動閉塞為例，介紹了移動閉塞技術下的atc模式以及針對工程項目制定的運營輔助手段後退模式，並討論了一期工程中運營的故障管理策略。This frame consists of two layers of contents. first, seen from the process of m & a, crisis control must run through all the stages of m & a including the design, implementation and reorganization, especially, the price - fixing, financing and payment during the implementation. second, seen from the trade policy making, crisis control must be carried out dynamically based on information transmission and the strategy for m & a must be adjusted now and then in accordance with the information from the other party
這一框架包含了兩個層次的內容：一是從並購流程上看，風險控制必須貫穿于並購設計-交易執行-並購整合三個階段，尤其是交易執行階段的定價、融資和支付三個環節，進行動態過程式控制制；二是從交易決策上看，風險控制必須以信息傳遞為基礎，並根據對方行為信號來不斷調整自己的行動戰略，進行動態決策控制。The purpose of reforming the foreign exchange institute is to increase the elasticity of the system, and from this, exchange rate can have the function of regulating the economy. the media measure is improving the forming mechanism of exchange rate of rmb. at present, the feasible measures is enlarging the floating region of exchange rate of rmb. firstly, improving the extent of marketization of forming mechanism of exchange rate, including enlarging the floating region of exchange rate of rmb in the inter - bank exchange market, adjusting the policy of exchange position of banks, reforming compulsive exchange settling institute
今後，我國有必要改進人民幣有管理的浮動匯率制度，使匯率更多的反映市場供求信號。完善人民幣有管理的浮動匯率制度的最終目的，應是改進人民幣匯率形成機制，增加人民幣匯率制度的彈性，以進一步發揮匯率杠桿對經濟的調節作用。當前可以選擇的政策措施是擴大人民幣匯率的波動區間。Although dm can also solve the modulation time error, but the output waveforms can ’ t reach the industrial standard ( total harmonic distortion thd ). considering this, a new control strategy called current optimal control ( coc ) is presented in paper. coc is that system samples the output value real time, comparing with expected value, considering all switching actions available then draw a concluding to decide which way would be fastest and best way to render system smooth
針對這一缺點，本文提出了一種更好的控制策略，電流最優delta調制，它是在電流滯環控制的基礎上，根據電路的輸出信號來分析，考慮所有可能的逆變器動作來決定選用哪一種開關轉換方式能最快最平穩地達到預期值，採用的是一種電流預測控制手段，從而使輸出波形的紋波最小。Specially we discuss and analyze the theory of linear quadratic gaussian control and the theory of implementing the stability of a uncertain time - delay system which include in the theory of robust control, and deduces some theories in detail, and gets the using method of the two theories in the actual systems. in this paper we first discuss and analyze the uncertainty of the macroeconomic system by the theory of linear quadratic gaussian control, and try to avoid the effect of the modeling error in system and the disturbed signal from the system and outside
本文主要研究了處于控制理論中的魯棒控制理論，其中重點研究與分析了線性二次型高斯控制理論和時滯不確定系統的魯棒穩定理論，對其進行了一定的理論推導，並得出了這兩種控制理論在實際系統中的運用方法。本文首先運用線性二次型高斯控制理論對宏觀經濟系統進行了分析和控制，力求消除或減少系統中的模型化誤差及其本身和外部的擾動信號等不確定性的影響，並藉助matlab設計軟體進行模擬，以得出最佳控制策略。This paper aims at the uncertainty of the macroeconomic systems and atmospheric pollution system which is analyzed and controlled by the theory of linear quadratic gaussian control and the theory of h control, and avoids the effect of the modeling error in systems and the disturbed signal from the system and outside
本文針對宏觀經濟系統和大氣污染控制系統模型的不確定性，分別運用線性二次型高斯控制理論和h _ 。控制理論進行宏觀經濟系統和大氣污染系統的的分析與控制，消除系統中的模型化誤差及其本身和外部的擾動信號等不確定性的影響，藉助matlab設計軟體進行模擬，得出最佳控制策略。To make the system perfectly recur the ideal response, the input signal should be iteratively compensated. this paper studied the method of identifying the transfer function and the arithmetic to iterate the input. the results shows that the controlling measures adopted in the
為了使系統的輸出能很好的復現期望的響應信號，本文研究了利用遠程參數控制對系統頻響函數辨識以及對驅動信號的迭代演算法，從理論上說明了該控制方法實施的可能性，為以後振動臺控制策略方面的研究打下了一個良好的基礎。分享友人