frequency analysis and control 中文意思是什麼
frequency analysis and control
解釋
頻率分析與控制-
In the sub block circuit design, the contents that the author had introduced include : the principle of band gap voltage reference and the design technique in low power supply ; the analysis of spike pulse noise rejection, frequency divider and dead time in oscillator and control circuit ; the selection of the width and length ratio of four switches and 2x / 1x mode change point in driver and mode selection circuits
在子電路設計中，作者比較深入分析的內容有:基準電路的原理及低電源電壓下基準電路的設計;振蕩器和控制電路中尖峰脈沖噪聲抑制、兩分頻電路及死區時間設定;驅動及模式選擇電路中開關管的寬長比的選擇及模式轉換點的設計。 -
This paper conbined with the indoor test and the scene test road, through the synthetical analysis of the factors of influencing densification effect for the densification thickness of filling stone roadbed. the maximum grain size of fill material, densification machinery and densification frequency et al. advanced a control norm of the maximum grain size and piy of compression, established ration evaluating the control standard of densification quality of filling stone roadbed under overload. comparing with result of indoor test and the scene test road, studied on theory of densification in different kinds of stone material and perfected the control system of the densification of filling stone roadbed under overload
結合室內試驗和現場試驗路的實測數據，通過對填石路基的壓實厚度，填料最大粒徑，壓實機械及壓實遍數等影響壓實效果的因素的綜合分析，提出填石路基的最大粒徑和攤鋪厚度的控制指標，建立定量評定超重載交通下填石路基壓實質量的控制標準，並對照室內試驗和現場試驗結果，研究不同石料條件下的壓實理論，補充完善了填石路基壓實控制指標體系。 -
Thirdly, by neglecting the coupling influence, the control laws of pitching, yawing and sloping movements are designed separately with frequency domain analysis and root locus, and then the parameters of the controller are chosen
第三，忽略耦合影響，將控制系統分為俯仰、偏航、傾斜三個相互獨立的通道，用頻域分析法和根軌跡法設計控制律、選取控制器參數。 -
Many experiments on the effects with the change of several parameters, such as initial charging current, amplitude and frequency of positive pulses, variety of the amplitude of positive pulses among each charging stages, amplitude and duration of negative pulses, duration between positive and negative pulses, have been performed. the results of analysis and comparison of experimental data verify the validity and feasibility of the fast - charging method. on this basis, a new type of control strategy is advanced
就充電過程中的起始充電電流、正脈沖的幅值、正脈沖的頻率、各充電級之間正脈沖幅值的變化幅度、負脈沖的幅值、負脈沖的持續時間、正負脈沖之間的停歇時間等幾個參數進行了大量的實驗，對實驗數據進行分析和比較，驗證了快速充電方法的有效性和可行性，在此基礎上提出了一種新型快速充電控制策略。 -
The system takes both advantages, the former is fast and convenient characteristics of dasylab in building a control and measure system, and the latter is the powerful program function and abundant control button of labwindows / cvi. it can acquire, analysis and save the real - time data in the experiments of the lim and electromagnet meanwhile, it can control the start / stop of the lim. electromagnet and dc motor, as well as it can control the change of the voltage and frequency of the lim. the exciting windings voltage and rotor windings voltage of the dc motor
整個測控系統利用了dasylab組建採集分析系統的簡單快捷和labwindows cvi豐富的控制項與強大的編程功能，將兩者的優點有機的結合起來，可以完成直線電機及電磁鐵試驗中的數據採集、分析、存儲，並且可以控制試驗中直線電機、電磁鐵、直流電機的啟動與停止，對直線電機繞組電壓、直線電機繞組電壓頻率、直流電機勵磁繞組電壓、直流電機電樞繞組電壓、電磁鐵繞組電壓的大小進行控制。 -
The analysis on unilateral, bilateral and lateral - torsional coupled seismic response of base - isolated structures with combined isolation systems is carried out, and the control of lateral - torsional coupled seismic response of structures is discussed. the energy analysis on base - isolated structures is conducted by energy method. the influence on the total input earthquake energy owing to the frequency, intensity and lasting - time of earthquake and so on is studied
採用能量方法，建立基礎隔震結構能量反應方程，對基礎隔震結構地震反應進行能量分析，研究地震動的頻譜特性、幅值、持時、上部結構自振周期及隔震系統動力性能等因素對結構總輸入能量的影響;並對基礎隔震結構進行耗能分析，研究結構總輸入能量在結構中的分配，為基礎隔震結構能量設計提供依據。 -
This thesis focuses on analysis and control of low - frequency electromechanical oscillations in power systems based on prony ' s method. the main work is as follows : 1
本文以基於prony法的電力系統低頻振蕩分析與控制為研究內容，主要做了以下工作： 1 -
Since the analysis of the inverter and its control system is very complex, the frequency analysis, time domain analysis and control system is made in capacitance operated conditions limited to pressure of time and paper length. the research content can be summed up as follows : ( 1 ) a new equivalent circuit of dbd circuit ( dielectric barrier discharge ) that consider the consume of transformer, the on - off switching loses and so on is presented based on the ozonier powered by sine current source. as compared with the former equivalent, the new equivalent circuit can be depicted the actual ozone circuit accurately
本文主要針對容性狀態下的臭氧發生器電源進行相關研究，研究內容包括以下幾部分: （ 1 ）在正弦電流源供電的dbd型發生器的基波等效電路基礎上，提出了一種考慮電路雜散損耗（變壓器勵磁損耗、開關管開關和導通損耗以及其他元件的熱損耗）的改進型基波等效電路，並採用該等效電路得出了適用的臭氧發生器電源設計方法，實驗驗證了該基波等效電路具有工程設計精度高的優點。 -
Classical control theory, which had its start during world war ii, can be characterized by the transfer function concept with analysis and design principally in the laplace and frequency domains
經典控制理論創建於第二次世界大戰，其特點是使用傳遞函數的概念，主要在拉氏域和頻率域進行分析和設計。 -
By choosing flood control system of downstream basin of the yellow river as the background, six relatively independent subsystem is established, which includes basic information management, real - time flood forecast, multi - reservoir flood control scheduling, consultation and analysis, scheduling scheme management, frequency analysis, and assist with friendly man - machine conversation to constitutes the yellow river downstream flood control scheduling decision support system, which can satisfy the practicability requirements of decision - making
論文以黃河下游防洪系統為背景，建立包括基本信息管理、短期洪水預報、水庫（群）防洪調度、會商與靈敏度分析、方案管理、水雨情頻率分析等6個相對獨立的子系統，並輔以友好的人機交互界面集成為黃河下游防洪調度決策支持系統，滿足了群決策會商的實用性要求。 -
Then it is applied to a multi - step model predictive controller in optimal control fashion. frequency, time domain analysis and simulation shows that the system is feasible
時域分析表明，對於二次型性能指標來說，該預測控制器是次優的，我們並提出了計算二次型性能指標的公式。 -
Finally, a large number of experiments are done in this paper, such as the experiments of constant voltage and constant frequency, the current waveform of rotor, different carried - wave ratio, the transition smoothly and connecting electricity web etc. the theoretics and experiments results show that the design of control system is rational, terse and steady ; the analysis of control strategy and system experiments are successful basically
最後，本文對系統進行了大量的試驗研究。其中主要包括：恆頻恆壓，轉子電流波形，不同載波比，同步速過渡及其並網試驗等。理論及其試驗結果表明：本控制系統的設計是合理、簡潔、穩定的；控制策略的分析和試驗基本上是成功的。 -
The digital upward frequency conversion is the key element of the waveform synthesis. at the same time, basic theoretical analysis and optimum design are done for pci bus slave interface, fifo, transmit signal processor, digital - to - analog converter and logic control
本文對波形合成技術的核心? ?數字上變頻進行了深入細致的研究和介紹，同時對波形合成器中的pci總線介面、先進先出緩沖器、發射信號處理、數模轉換及邏輯控制等部分進行了分析和優化設計，給出了最佳設計方案。 -
Topics covered include : frequency domain and state space techniques ; control law design using nyquist diagrams and bode plots ; state feedback, state estimation, and the design of dynamic control laws ; and elementary analysis of nonlinearities and their impact on control design
所涵蓋的項目有:頻域與狀態空間之技巧;用奈奎士圖與波德圖來設計控製法;狀態回授，狀態估測與動態控製法之設計;與非線性的基本分析和它在控制設計上的影響。 -
At the end of the thesis, the review on the developments of low - frequency square wave electronic ballast is given. then a novel two - stage low - frequency square wave electronic ballast for hid lamps is proposed with detailed proposed circuit analysis and control circuit description. finally simulation and experimental results are provided to verify its superiority
論文最後對低頻方波電路的發展概況作了綜述，在此基礎上提出了一種新型的兩級式低頻方波電子鎮流器，並對其工作原理及控制電路進行了詳細的分析，最後通過模擬和實驗結果對電路進行了驗證。 -
The experience results indicated the reliability of this kind of thermostatic control system. the analysis and compare about modern dielectric loss measuring methods are presented on chapter 3, and the zero - crossing testing phase discrimination method is adapted as the measuring method of this measuring system. furthermore, applied high frequency pulse technique, channel self - correction technique, anti - harmonic technique are used to increase accuracy and reliability of measurement
本文對現代介質損耗測量技術進行了分析與比較，採用過零鑒相比較法作為介質損耗測量方法，並結合外施高頻脈沖技術、通道自校正技術、抗諧波技術，設計了高精度介質損耗測量電路，有效提高了介質損耗測量的精度，減小了測量誤差。 -
In t his p aper r otating s tall a nd t he inlet v ortex in c entrifugal fans with inlet v ane control has been studied in laboratory. the harmonic wavelet is firstly used for time - frequency analysis and feature extraction of pulsation amplitude and frequency and development of rotating stall and inlet vortex. the development rule of rotating stall and inlet vortex and the effect to fans performance from the two has been found
文中對採用入口導流器調節的離心通風機的旋轉失速和進口渦流問題進行了實驗研究，並藉助諧波小波對旋轉失速和進口渦流的頻率、幅值特性及動態過程進行了時頻分析和特徵提取，揭示了旋轉失速和進口渦流發展的規律及二者對風機性能的影響。 -
The many proper limited water levels were study out through analyzing the engineering condition and safe operation instance of the reservoir ; the stochastic simulation method and frequency analysis method were adopted to calculate the flood control risk rate of reservoir at the different limited water levels
通過分析水庫的工程條件與安全運行情況，擬定了可能的汛限水位方案集，採用隨機模擬和頻率分析的方法計算出了水庫在各種汛限水位方案下的防洪風險率。 -
With high practicability, a set of novel analysis methods and control strategies on low frequency oscillations in interconnected power grids is established by the research results of this dissertation
對測試系統和實際電網的分析結果表明，論文的研究成果具有良好的工程實用性，從而為互聯系統低頻振蕩研究提供了新的分析方法和控制策略。 -
The fundamentals of lfm ( linear frequency modulation ) signals, waveform parameter design, system control, quality analysis and pre - distortion calibration are discussed in this paper
本文討論了線性調頻信號的基本理論，研究了信號參數設計、系統控制、性能分析與預失真校正。
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