擬簡波 的英文怎麼說
中文拼音 [nǐjiǎnbō]
擬簡波
英文
quasi simple wave-
They work together as a virtual oscillograph
兩者協同工作，完成簡單虛擬示波器的功能。This paper starts the research of the liquid floated pendulous accelerometer testing system according to the engineering. at first, this paper gives the brief introduction of the history and present status of accelerometer and its testing technology, the working principium and math model of the liquid floated pendu - lous accelerometer, and then, decides the binary width pulse force retrim loop as the design proposal of testing system, researches the transfer function of every part in the system emphasizly, analyses the stability of the whole accelerometer testing system from the angle of control theoretics by the open loop transfer function of system, and designed the correcting net, analyses the basal problems such as resolution, sampling restraint, precision and so on, designs the hardware testing circuits such as preamplification, band - pass filter, alternating amplifier, phase sensitive demodulatorn, pulse - width modulation, frequency scale circuit, moment current generator. finally, using the graphics program language labv - iew which is designed for testing field especially by ni accomplishes the solfware design of testing system, realized the testing functions
首先對加速度計及其測試技術的發展歷史和現狀，液浮擺式加速度計的工作原理和數學模型等作了簡要的介紹，然後確定了以二元調寬脈沖再平衡測試迴路為設計方案，並從控制理論的角度進行了分析，著重研究了系統中各部分的傳遞函數，利用系統開環傳遞函數分析了系統的穩定性，同時設計了系統的校正網路;分析了二元調寬脈沖再平衡測試迴路的解析度、采樣約束以及測試精度等基本問題，並按照系統分析的結果設計了包括前置放大、帶通濾波、交流放大、相敏解調、脈寬調制、頻標電路以及力矩電流發生器等測試系統各部分硬體電路，驗證了電路的正確性，最後按照測試系統的要求，採用了美國ni公司專為測試領域所開發的虛擬儀器工具? ? labview作為測試軟體開發工具，利用該圖形化編程語言完成了測試系統軟體部分的設計，實現了測試功能。The simulation result has indicated that using the method of two - value filter can solve the question perfectly, and the question is the edge discontinuity of traditional image classify base on region ; the image fusion which make use of edge gradually change is sententious and efficient ; the color image reinforcing which realized by grey statistics histogram equalization method has reduced the need of environment brightness in virtual photographing system
模擬結果表明，利用二值濾波處理較好地解決了傳統的基於區域的圖象分類中的邊緣不連續的問題；利用邊緣漸變方式實現的圖像融合簡潔有效；由灰度統計直方圖均衡所實現的彩色增強處理降低了虛擬照相系統對環境照度的要求。Thirdly, an ideal satellite orbit is simulated, and on this foundation, we establish some typical simulation and testing circumstances. lastly, after simulation in the simulation and testing circumstances, we compare the performance of ukf and ekf. and then, based on the outdoor experiment of the vehicle, an analysis and contrast between our simulation results and commercial data process software is carried out, and the conclusion is obtained
首先在第三章提出的目標運動模型的基礎上建立了系統狀態方程;其次簡要分析了衛星導航系統中的各類誤差，建立了基於偽距觀測量的系統觀測模型;第四節利用yuma格式歷書數據模擬了未受攝動影響的衛星軌道，並在此基礎上建立了幾種典型的動態模擬測試環境;第五節為模擬分析和比較，先對ukf演算法和ekf演算法在動態模擬測試環境中進行了模擬比較，然後針對外場試驗，對非線性濾波獲得的定位結果與商業軟體進行了分析比較，並得出結論。The switched capaci tor filter is the counterpart of the continue time analog filter " s sampling, it is more adapted to the miniaturization of the circuit and can realize the higher accuracy transfer function, especially the design of the cmos integrated sc filter based on the biquad have advantage of high accuracy, small area, low power consumption, simple architecture and easy to debug. it has important academic and practical means of the sc filter " s research and design
開關電容濾波器是連續時間模擬濾波器的采樣時間等效電路，更適合電路的小型化，同時也實現高精度的傳輸函數，尤其是基於雙二階的cmos開關電容濾波器設計具有高精度、面積小、低功耗和電路結構簡單，易於調試等優點，所以研究和設計開關電容濾波器有著重要的理論和實際意義。The precious method to simulate earthquake accelerations is not perfect because the points on the interface still move according to the simulated acceleration when the points " motion ends, which is obviously a paradox. if the points " velocity is not zeroized, soil ' s damage value based on shear stress ' s peaks or extrema is overestimated in multi - point input analysis. the new method ' s rationality is analyzed
以往人工合成的地震波在地震結束時即地震加速度恆為零時速度不為零，這與合成地震動是「模擬輸入點從靜止到運動再到靜止的運動過程」這一要求不一致，同時導致時域內多點輸入分析時差動力過大以至算出的損傷值過大，於是本文提出了簡易的地震動速度歸零化方法並分析了其合理性。Based on an engineering background, through numerical simulation of the flow field in the hp turbine of the energy efficient engine ( e3 ), the article research the unsteady flow in a transonic turbine stage, the unsteady phenomena in the stage include the shockwave, wake, shedding vortex, endwall vortex, passage vortex and leakage vortex, etc. there are two shockwaves generated on the vane the tailing edge, one on suction side is named moving shockwave, and name another on pressure side steady shockwave
本文首先對于研究的意義和國內外研究的現狀做了簡要的介紹，再從某工程背景出發，通過對e3發動機高壓渦輪內流場的數值模擬，研究了干涉的周期性的問題，以及渦輪級內常見的非定常現象：激波、尾跡、脫落渦、根腳渦、通道渦、漏流渦。導向器尾緣會出現兩道激波，在吸力面的激波可稱為「運動」激波，壓力面的激波可稱為「定常」激波。This paper begins with an overview of the fundamentals of adaptive antennas. the correspondence between a spatial filter and the fir filter is illustrated, and the spatial filter characteristic of adaptive antennas is investigated by dmi and ls - drmtcma algorithms. the discrete - time transmission model of synchronous cdma systems with antenna arrays is also developed
本文首先對自適應天線的基本原理進行了簡要介紹，建立了陣列接收的同步cdma系統離散時間傳播模型，並論述了空域濾波和時域fir濾波器的類比性，用dmi和ls ? drmtcam演算法模擬了自適應天線空間濾波性能。The subject inducts digital time division technology ( pwm ), which is more advantageous at the accuracy and the predigest of hardware than simulant multiplication. what they call measuring power energy reasonably is that measuting except harmonics power energy fed back power. yet it realizes reasonable measurement of power energy which measures by base wave ac parameters method base on digital time division
本課題引入了數字時分割（ pwm ）脈寬調制技術，在測量的準確性、硬體電路的簡化等方面都比模擬乘法器具有較高的優越性。所謂合理的計量電能，就是不計非線性負載回饋給電網的負的諧波電能，而採用基於數字時分割的基波交流參數測量的方法，真正實現了電能的合理計量。Chapter 3 analyzes the principle of wavenumber domain ( w _ k ) algorithm and simplified wavenumber domain algorithm in detail. with the realization of emulation, performance of these two methods is compared
第三章詳細分析了波數域成像演算法及其簡化演算法的原理，採用上述兩種方法進行了模擬，並對兩者的性能作比較。Design considerations of the high power s - band rka are described, by using electron beams of voltage - 600kv, current - 5000a, and the numerical simulations for three kinds of the rka output structures are given. the three kinds of the output strctures are single - gap standing - wave ( sw ) cavity, traveling - wave ( tw ) output structure, and two output structures ( single - gap + traveling - wave structure ). under conditions of using two output structures, the results show that the instantaneous peak power obtained from sw output cavity and tw output structure is respectively 2. 4gw and 2. 1gw, the both power average of 0. 96gw and 0. 93gw, i. e. the s - band rka of two output structures generates peak output power of 1. 89gw at a frequency of 2. 85ghz
從數值模擬中得到雙輸出結構的微波功率輸出結果為:駐波輸出的瞬時功率為2 . 4gw （周期平均為0 . 96gw ） ;行波輸出結構輸出瞬時功率為2 . 1gw （周期平均0 . 93gw ） ，就獲得了頻率為2 . 85ghz的微波輸出。本文簡要的描述了電磁軟體（ magic ）對速調管輸出腔體進行了模擬，並對相應的模擬方法進行了評述。( 3 ) the basic theories and techniques on distributed radar cfar detection are reviewed. in particular, using the numerical performance simulation results, the performance of distributed cfar detect system under nonhomogeneous backgrounds and simple detect conditions are analyzed in some details. we have summarized the performance characteristics of distributed cfar detect systems against interference and edge clutter when different fusion rule is used
西北工業大學博士學位論文（ 3 ）對分散式cfar檢測技術的相關理論、方法進行簡要總結與分析，特別是利用數值分析與性能模擬方法，對非均勻環境下簡單條件檢測系統的性能進行了較為深入和系統的研究，總結了不同融合方式時分散式cfar檢測在抗干擾與雜波方面的性能特點。At last, influences of the frequency, source point depth and conductivity ' s are concisely analyzed on low frequency wave ' s propagation characteristics in the earth ' s crust overburden
最後根據模型模擬結果數據，從頻率、源點距地面深度和導電率三方面簡略地分析它們對地殼覆蓋層中低頻無線電波傳播特性的影響。In the simulation work, one 1. 5kw and one 18kw induction motors ? control system were simulated and two simplified control scheme were proposed. when developing the program in tms320f240 dsp, this paper solved two practical problems : the finite - length effect and dc bias effect. finally, sensorless control system based on adaptive filter theory are tested on the platform of 1. 5kw induction motor, the results show that the scheme ? performance is good
在模擬過程中，針對1 . 5kw和18kw異步電機進行了模擬，並在此基礎上提出兩種簡化控制方式；在tms320f240的具體編程過程中，分別對自適應濾波器的有限字長效應、直流偏置效應等非理想因素進行了修正和補償；最後，在1 . 5kw微型異步電機上進行了轉矩閉環無速度傳感器實驗，實驗結果表明了演算法完全可以達到預期的目標。Then a simplified computational modal of damping isolation systems is established for a platform structure, and the relationships between the parameters of isolation layer and structural damping ratio, including their vibration - suppressed effect on the whole structure and the relative displacement of isolation layer are studied, and the simulation analysis under several representative load case of random wave force and earthquake affairs is performed. under random wave force, using complex mode theories, non - classically damp problems considering the interaction between the structure and wave, lying in deepwater, are studied. and the resolution solution of structural response are achieved. the results of calculating and analysing show that adding damping isolation to a jacket is an effective way to reduce vibration for offshore platforms
針對某一典型平臺結構，建立了海洋平臺結構阻尼隔振體系簡化計算模型，進行了波浪荷載工況和地震工況的數值模擬，研究了隔振參數與結構阻尼比的關系以及它們對結構整體和隔振層層間相對位移的控制效果，運用復模態理論研究了位於較深水位的固定式導管架海洋平臺在隨機波浪力作用下考慮結構與波浪相互作用時運動方程中非經典阻尼的解耦問題，獲得了結構響應的解析解。Using a simulation of physical model and according to the analogical principle, a simplified double - layer model of the surface and roadbed of concrete highway is established, practical methods of distinguishing the reflected ultrasonic wave, measuring the velocity of the reflected ultrasonic wave and the time parameter, which the ultrasonic wave takes from leaving source to the received by receiver, are put forward
摘要利用模擬物理模型，並根據相似性原則建立起公路路面和路基的雙層簡化模型，提出了一種準確識別反射波，測量反射波速率及走時參量的實用方法。Comprehensively discuss the issues in application, adaptive condition and performance, propose a fast arithmetic of forward modeling and depth migration in common shot gathers with one - way acoustic wave equation based on vrselrf, and verify the arithmetic by numerical simulation. concisely discuss the cause of the creation of evanescence and the problem of lateral amplitude discontinuity result from it. fourthly, use the reflectivity model, computed to describe the fracture model, with the formula of computation reflectivity based on elastic - acoustic approximation, and the wavelet model computed by the method, wavelet creation with fourier transform, we proposed, in conjunction with vrselrf wavefield extrapolation operator
第三，將頻率波數域穩定的變參考慢度rytov近似廣義屏波場延拓運算元（ vrselrf ）應用於疊前與疊后正演模擬、疊前與疊后深度偏移，對演算法應用中應注意的問題、適用范圍、性能等作了較為全面的論述；提出了基於vrselrf的單程聲波方程共炮記錄正演模擬和深度偏移快速演算法，並通過數值模擬試驗對演算法進行了驗證；簡要地討論了倏逝波的產生原因及其帶來的橫向振幅不連續性問題。For a class of shunt - wound active power line conditioner, based on analysis of mathematical model of system and target of control, the algorithm of fuzzy variable structure sliding mode control is presented. the control algorithm can avoid complicated calculation of harmonic electric current in traditional control algorithm, and realize the feedback control of electric current. the algorithm is simple and easily implemented
針對一類並聯型有源電網調節器在分析系統數學模型和控制目標的基礎浙江大學博士學位論文上，提出了模糊滑模控制策略，避免了傳統控制方法中復雜的諧波電流計算，實現對電源電流的閉環控制，該演算法簡單、易於實現，模擬結果證實了變結構滑模控制的有效性。Pc operating software on teco servo with chinese regular font chinese simple font english version on teco servo for parameter read write, gain adjustment, status indication and digital scope simulating for monitoring internal signals through rs - 232 interface
Pc操作軟體- teco servo繁體簡體英文語系版本，透過rs - 232介面，讀寫參數增益調整狀態表示及模擬數字式示波器進行內部信號圖形監控Fourthly, discussed the inside coupling resonator ’ s structure and theory, further minish the filter ’ s cubage. finally, discussed how to use eda tool to design filter, especially the filter has complex geometric structure
該方法使用eda工具模擬濾波器設計的實驗，以此來設計濾波器，是一種濾波器設計的通用方法，尤其是對于具有復雜的幾何結構的濾波器更是一種簡單高效的方法。分享友人