章動頻率 的英文怎麼說
中文拼音 [zhāngdòngbīnlǜ]
章動頻率
英文
nutation frequency-
This text divides into five chapters altogether : chapter one in the introduction, have introduced the common sensor of displacement, has pointed out the fine characteristic of hall ' s sensor, put forward the basic task ; chapter two have introduced the basic operation principle of hall ' s component ; chapter three introduce hall temperature performance, electromagnetic characteristic, zero error, frequency characteristic and these parameter commonly used compensation method and hall simple application of component ; chapter four having recommended the measurement principle of the feedback servo mechanism, systematic implementation method, the experimental result has appeared, structure the mathematics model, and has analysed the error ; chapter five have pointed out the developing direction in the future while looking forward to
本文共分為五章：第一章緒論中，介紹了常見的位移傳感器，指出了霍爾傳感器的優良特性，提出了基本任務；第二章介紹了霍爾元件的基本工作原理；第三章介紹了霍爾元件的溫度性能、電磁特性、零位誤差、頻率特性以及這些參數常用的補償方法和霍爾元件的簡單應用；第四章介紹了反饋隨動機構的測量原理，系統的實現方法，給出了實驗結果，構建了數學模型，並對誤差進行了分析；第五章展望中指出了今後的發展方向。Backed up by the soplat theory based on particle kinematics, the second chapter of this paper presents with analysis and simulation of several single observer passive measurement models, which uses such relative movement parameters as bearings changing rates and centrifugal acceleration information on the basis of bearings measurements. in the third chapter, the observability of location respectively using bearings and its changing rates information and centrifugal acceleration information is analyzed, and its observable condition is got. the fourth chapter puts forward the modified covariance extended kalman filtering ( mvekf ) against the defect of traditional extended kalman filtering ( ekf ), whose performance is simultaneously compared in the chapter with the performance of ususal tracking algorithm such as ekf, mgekf, iekf by computer simulation
在近年來提出的基於質點運動學原理的單站無源定位理論基礎上，本文第二章提出了幾種在角度測量的基礎上增加角度變化率及相對運動的離心加速度等運動學參數的單站無源測量模型，並對它們進行了分析和模擬；第三章分別對利用角度及其變化率信息定位和利用離心加速度信息定位的可觀測性進行分析並得到了相應的可觀測條件；第四章針對傳統擴展卡爾曼（ ekf ）方法的缺點，提出了一種修正協方差的擴展卡爾曼濾波（ mvefk ）方法，並將其和ekf 、 mgekf 、 iekf等常用的單站無源定位濾波方法進行了性能模擬比較；第五章通過引入雷達機動目標跟蹤方法和模型，提出了利用角度及其變化率對機動輻射源跟蹤的多級噪聲自適應方法和imm方法；第六章主要對角度變化率和離心加速度參數的獲取技術進行了研究，提出了幾種高精度測量脈沖序列多普勒頻率變化率的方法。In the end, the main content of this dissertation is addressed. in chapter 2, based on the analysis of present vibrator ' s principle and structure, two kinds of transfer functions and frequency response curves of the vibrator, driven by voltage feedback power amplifier and current feedback amplifier, are given separately. and turnover frequencies between different frequency rangs are also given
第二章分析了標準振動臺的工作原理和結構，在此基礎上，建立了標準振動臺的機械和電氣方程，給出了恆壓源和恆流源功放激勵下的振動臺傳遞函數及幅頻、相頻特性曲線，列出了不同頻段間的轉折頻率。More attention is paid to the starting response of the motor, considering the effects of the different start positions, the parameters of the motor and the frequency changes of the source
文章著重分析了電機的起動過程，討論了不同起動位置、電機的參數以及電源的頻率變化時對電機起動的影響。The dynamic equation for analyzing torsional vibration of the vehicle drivetrain is established based on analyzing the jointing process of frictional clutches, and the inherent frequency, the response of torsional vibration and the sensitivity of rigidity parameters to inherent frequency are studied
摘要文章在分析車輛最常用的膜片彈簧摩擦離合器接合過程的基礎上，建立汽車傳動系的扭轉振動的力學分析方程；結合實際車型，分析了車輛的固有頻率、扭振響應、剛度參數對固有頻率的靈敏度。Then in allusion to biased momentum wheel system, based on classical control system a pid controller was design about pitching channel. according to specialty of roll - yawing channel, this paper discuss long - time cycle movement and short - time cycle movement. when design the control method of long - time cycle movement, whiff thruster is used to assistant the control system. when design the control method of short - time cycle movemen, in order to sovle the problem of coundn ’ t abtain the angular velocity signal, nonminimum phase controller advanced by terasaki is used
然後針對偏置動量飛輪系統，基於經典控制理論設計俯仰通道的pid控制律，根據滾動?偏航通道耦合的特點，分別討論了由軌道角頻率和章動頻率引起的長周期運動和短周期運動。其中長周期運動控制律設計時，結合了噴氣推力控制來輔助偏置動量控制;短周期運動控制中，為了解決不能獲得角速度信號的問題，採用terasaki提出的非最小相位控制器進行控制。The rubber insert ' s mechanical and physical performances and machining mechanism, particularly the dynamic mechanics frequency chart and the equivalent principle of time and temperature, are analyzed in chapter 6. the series tools of machining rubber inserts are researched and manufactured. reasonable technology parameters, and measures for exaltation machining efficiency and quantity are determined by test
第六章分析了防中子橡膠內襯的物理機械性能，尤其是動態力學性能頻率譜和時溫等效原理；研究了橡膠材料的加工機理：研製了橡膠內襯加工的系列刀具，進行了加工工藝參數優化；提出了提高加工質量和效率的工藝措施。A on - line method for identifying robot load parameters based on robot ' s wrist force sensor is presented aiming at the points that the load parameters must be identified on - line and real - time, and the identification steps are given clearly. 4. experiments of on - line identification inertial parameters of the robot ' s end - effector and load are shown in chapter 4, experiments are done on robot puma562, the work pieces which inertial parameters are already known, are as robot ' s end - effector and load respectively
第七章以一種十字梁多維力傳感器為例，以bernoulli一eulerbeam為基礎，建立傳感器的動力學模型，定義了傳感器維間禍合的禍合函數，研究傳感器各維的固有頻率與傳感器的幾何參數等的關系，傳感器動態應變與傳感器幾何參數、貼片位置等的關系，傳感器的禍合函數與傳感器幾何參數、貼片位置等的關系，力圖揭示傳感器的動態特性的本質關系，為傳感器的動態設計和傳感器結合機器人對機器人系統的影響的研究提供理論基礎In chapter 2, we analyzed the effect of the driving field phase fluctuation on the gain and dispersion and population differences in an open v - type three - level non - inversion lasing system and then discussed the effects of the incoherent pumping rate, the ratio of the atomic injection rates, the atomic exit rate, the rabi frequency of the probe and driving fields and their corresponding detuning on the gain, dispersion and population differences of the system, and got some important conclusions different from those in closed or other open systems
第二章討論了驅動場的相位漲落對開放的v型三能級無反轉激光系統的影響，根據解析解的數值計算結果討論了非相干泵浦速率、粒子注入速率之比、粒子退出速率、探測場和驅動場的rabi頻率和相應失諧對系統增益、色散和粒子數差的影響，得到了一些不同於封閉的v型系統及其他開放的無反轉激光系統的重要結論。The main content of chapter 1 are the analysis of the repetition of the historical phenomenon of money supply fluctuation since the foundation of new china and the discussion about the nature and features of the money supply fluctuation in our country, as well as the fluctuation period, amplitude, frequency and component stages on each cycle
緒論部分包括文獻綜述、研究方法和邏輯體系。第一章從我國建國以來貨幣供應波動的歷史資料入手，考察了我國貨幣供應波動的性質、特點和各波動周期的長度、波動幅度、頻率及組成階段等。Abstract : this paper proposes an self - adaptive speed - accommodating control circuit, which can get the speed - error, and can test the change of frequency of feedback signals of the single phase ac tacho generator through self comparing and automatically corrects the speed
文摘:文章介紹了通過自比較來檢測錄音機主導軸單相永磁交流測速發電機反饋信號的頻率變化，從而獲得速度誤差，並自動校正轉速的一種自適應速度調節控制電路。Chapter four briefly researches the principle of range migration algorithm. the relation and difference between frequency scaling algorithm and range migration algorithm are studied carefully. through the point simulation under ultra wide - band system parameters, we compare their imaging performances
第四章簡要介紹了距離徙動演算法原理，著重分析了頻率scaling演算法和距離徙動演算法之間的聯系及區別，並通過超寬帶（ uwb ）系統參數下的點目標模擬比較了它們的性能。Then the general plan of underwater vibrators is put forward. in chapter 3, combining fluid - solid coupling theory and mechanical vibration theory, we get the coupling equation of moving parts and water. the dynamic characteristics of moving parts are studied with theory of finite element, and additional mass of moving parts is found in fluid - solid coupling field, which makes vibrator ' s natural frequency descend and amplitude - frequency curve downward shift
第三章運用流固耦合理論和機械振動學理論相結合的方法建立運動部件與水的耦合運動方程，利用有限元法對其的動態特性進行了研究，得到了在流固耦合場下運動部件存在的附加質量，該附加質量導致固有頻率下降，單位推力下的加速度頻響曲線整體下移。5. a computationally attractive algorithm based on the propagator method is proposed for simultaneous estimation of the direction - of - arrivals and frequencies of multiple narrowband signals received at spatially separated sensors. the frequencies are found by the eigenvalues of a constructed lower dimension matrice. the arrival angles are then estimated using the associated eigenvectors as well the estimated frequencies
在第六章基於傳播運算元方法給出了頻率、角度聯合估計的一種快速演算法，由於其避免了高維矩陣的特徵分解，因而具有更低的計算復雜度，且演算法適用於一般的陣列結構，二維參數自動配對，易於實時實現。In the fifth chapter, the performance of transconductor - capacitor ( gm - c ) continuous time filter is discussed. due to process variation and parasitics, an automatic tuning is designed for center frequency and quality factor q. also, in this chapter, a two order bandpass filter with tunable is designed. the effects on filter ' s performance of the non - idealities of a cmos ota are studied and the computer simulations at the mos transistor level are carried out
第五章討論了跨導電容連續時間濾波器的性能特點，設計了一個中心頻率可調的二階帶通濾波器，為了使濾波器參數自動調整到設計標準值，從而保持其設計值的實現精度，論文給出了片內自校正（可調諧）環節。Based on fourth - order cumulant, a computationally efficient method for joint estimating both directions of arrival and ranges of near field sources with known carrier frequency is firstly presented. the proposed algorithm need not any spectral peak searching and the 2 - d parameters are automatically paired. lt is suitable for arbitrary additive gaussian noise environment. in the following section, a 3 - d esprit method for jointly estimating of frequencies, doa ' s and ranges of multiple near - field sources with unknown carrier frequencies is proposed. the parameters estimation are given by the eigenvalues of different matrices. furthermore, its performances are confirmed by several computer simulations
利用四階累積量，第五章首先給出了一種載頻已知的情況下基於近場源的距離和波達方向聯合估計演算法，通過構造的陣列輸出信號四階累量矩陣使空間信號到達方向和距離估計無需譜峰搜索，且參數自動配對，適合於任意高斯噪聲環境。進一步在第三節提出了一種載頻未知的情況下的多個近場窄帶信號源doa 、距離和頻率聯合估計的3 - desprit演算法。This new effective control method makes agc system in the big area power grid reach cps / dcs standards. the mathematic model of the electricity market of agc is proposed in chapter 4. this paper developed a framework for new market structure to understand agc implementation in the price - based operation
第四章分析了大區互聯電網agc在電力市場下數學模型，模擬了在電力市場各種運行條件下對系統的動態響應，尤其是發電公司、配電公司違約對系統頻率的影響。Material recommend about the development and theory of dtc the composing of dtc - system is presented in this paper. some important taches such as flux - linkages adjuster, frequency adjuster, the mathematics model of asynchronous motor in - coordinates and the choice of voltage - vectors are discussed detailedly
文章對直接轉矩控制方案的發展與理論做了具體介紹，根據理論確立了直接轉矩控制系統的結構組成，並對其中如磁鏈調節、頻率調節、在定子坐標系下的異步電動機數學模型、電壓向量選擇等重要環節作了詳細討論。In chapter 3, a carrier synchronization method is put forward, parameters and design of each part of the afc loop are described in detail, at the same time the carrier synchronization unit has been simulated using matlab language and its performance analyzed. simulation results show it efficient
第三章基於綜合抗干擾數據傳輸系統中擴頻同步、自適應陣收斂和載波同步的關系，提出一種適合系統並利於fpga實現的載波同步方法，詳細闡述了自動頻率控制（ afc ）環路主要部件的參數及電路設計，並對載波同步單元進行了matlab模擬和同步性能分析。By simply waving your hands above an electronic circuitry and changing its oscillation frequency
的電子線路上揮動手掌，改變電路的振動頻率，便可奏出美妙的樂章。分享友人