角速度值 的英文怎麼說
中文拼音 [jiǎosùdùzhí]
角速度值
英文
magnitude of angular velocity-
In order to improve the efficiency of classification based on feature matching, the method of azimuth estimation from sar image is studied. a method of target ' s azimuth estimation from sar image using peak featur e based on linear regression is proposed, besides goodish estimation accuracy and high computation efficiency, it can also provide the confidence interval of the estimation, which can meet the need of model - based sar atr system that uses feature very well
為了提高基於特徵匹配的saratr系統的分類效率,論文進一步研究了sar圖像目標方位角估計方法,提出了一種利用峰值特徵基於線性回歸的sar目標方位角估計方法,該方法除了具有計算速度快、估計精度較高的特點之外,還能在估計方位角的同時,給出該估計的置信區間,從而能更好地滿足利用特徵基於模型saratr系統的需要。The results show that the ass can effectively reduce the roll angle and roll angle acceleration in non - linear driving and improve the side tumbling stability
模擬分析得到主動懸架系統使得汽車在彎道行駛時的側傾角有效值下降了92 . 8 % ,側傾角加速度有效值下降了78 . 2 % ,側翻因子有效值下降了92 . 6 % 。Considering the characters of 3 - axes coordinate system that is not included in ship rectangular frame or inertial frame, compensation conditions are deduced through studying the effects of ship - swing. the paper studies how to transfer line velocity and acceleration in the inertial frame to angular velocity and acceleration which correspond each axis, then gives the computer function scheme. servo control scheme which can overcome ship swing and realize moving - target accurate tracking is designed according to inconsistency of radar base angle and beam angle
針對三軸軸系既非甲板坐標系又非大地坐標系的特點,既研究了船搖對正交三軸雷達系統的影響,推導實現船搖不變性的補償條件,又研究了將目標在大地坐標系中的線速度和線加速度濾波值折算到各軸對應的角速度和角加速度值的計算關系,並作出了計算機功能框圖。In the chapter two we discussed that the server would first use speed - 1 to serve customers when the system entered the busy state from the empty state, but when the server found the number of customers in the system exceeded the thresh - n during serving, after finishing the service of current customer it would use speed - 2 to serve the next customer till there is no customer. by the method of supplementary variable, l - transition and constructing vector markov, we attained the distribution of the queue length, the distribution of wait - time, the distribution of stay - time, the utility and etc. in the last part of this chapter, we discussed the optimal n * for thresh n which minimizing the cost function and we illustrate the cost function behaves for various parameter selections by a numerical study
在本文第二章討論了當系統從空閑進入忙期時是服務臺以速度1進行服務,但一旦對某顧客服務完畢時如發現系統中的顧客數超過n值時就以速度2服務后續顧客直到系統變空的可修排隊系統,通過構造各種向量馬氏過程和吸收向量馬氏過程,獲得了瞬態、穩態隊長分佈、等待時間分佈、逗留時間分佈、更新周期分佈等一系列排隊指標以及可用度、可靠度等一些可靠性指標,在本章最後又從系統如何更好節省費用角度出發討論了門限n的最優取值問題,並利用mathematic軟體對費用函數進行了數值模擬。The innovations of this thesis can be summarized into three points. firstly, the average relative velocity is introducd into a novel adptive weighted clustering algorithm as one important parameter of weight, then it increases the stability and self - adaptability of cluster head. secondly, a new approach to calculating weight is suggested by integrating subjective and objective factors. it is verified by comparison with other approaches to selecting weight. thus the velocity of weight responding to the changes of network topology is increased. finally, using a som neural network to create a classifying model enables every node to learn to identify by itself the role in manet
本文的創新點有三個:首先本文在wca和aow分簇演算法的基礎上,引入了平均相對移動速度作為權值重要的參數,提出了一種新的基於權值的自適應分簇演算法,提高了簇頭在移動中的穩定性和自適應性;其次,提出了利用主客觀綜合賦權法確定權重的權值計算方法,通過與其他權重選擇方法比較,網路結構變化的權值響應速度得到了改進;最後,論文利用自組織特徵映射神經網路建立分類模型,使得網路中的節點可以自學習地確定簇中角色。Because 3d surface model contains huge number of triangles, a mesh simplification algorithm based on triangle edges shrinkages is presented in this paper to speed up the rendering in real time. in chapter four, the cutting of reconstructed 3d models is explored. in order to observe expediently the size and interspaces structure of inner tissues and avoid the discommodiousness of surface reconstruction, a simple cutting methods based on ray - casting algorithm is presented to get the inner images information
第三章主要對marchingcubes ( mc )表面重建演算法進行描述, mc演算法是基於規則體數據抽取等值面的經典演算法,本文實現了這種等值面構建表面模型的演算法,並對其演算法的二義性進行了相應的處理;針對其重建速度較慢的問題,提出了體素間相關性處理的方法來加快重建速度;並對其生成的表面幾何模型所包含三角面片數量巨大的問題,提出一種快速有效的三角形邊收縮演算法進行網格簡化,提高了表面模型的繪制速度。Through discussion of numerical solution, the author get the effect of height of filled soil, size of culvert, width of valley, property of filled soil, construction procedure and techniques on soil stress of the culvert top ; 3. through the centrifuge test, the paper validates the reliability of numerical calculating on high - stack soil ; 4. the paper puts forward the simplified calculating method of soil stress of the culvert top on the foundation of numerical simulating and centrifuge modeling
通過對數值解的討論,得到填土高度,涵洞截面尺寸,溝谷底部寬度,溝壁坡角,填築體性狀,施工速度,地下水對豎向位移場及涵洞頂部土壓力的影響情況; 3通過離心機的模擬試驗,驗證了數值計算對高路堤的計算結果的可靠性; 4在數值模擬和室內離心機模型試驗的基礎上,提出了高填方涵洞頂部土壓力簡化計算方法。In the terms of interpolation, the image reconstructed from nearest interpolation or linear interpolation has good edge but serious noise ; reconstruction from 4 * 4cubic interpolation or three b - spline or three - order lagrange interpolations has better local character. 2 x 2cubic interpolations which has both better edge and local character is the ideal interpolation, the following is the basic principle during reconstruction : ( 1 ) the more width of interpolation, the more number of summation and the more order of interpolation polynomial, the higher of density resolution ; ( 2 ) the more of interpolation polynomial and width of interpolation, the more of reconstruction time simultaneously, aimed at eliminating the effects of noise contained in projection data, in this paper, author analysis cause and effects of common artifacts. importantly, discusses convolution back - projection reconstruction algorithm with a shift axis of rotation has been derived for correcting images that acquired with a divergence axis of rotation using the fan beam geometry with an angle - equaled detector
在ct圖像重建時,選擇有限帶寬窗有較好的空間解析度,三角形窗有較好的密度解析度,選擇餘弦窗則使得空間解析度與密度解析度的折衷;從窗函數的頻譜角度來講,可以用於圖像重建的一個良好的卷積窗函數應該具備以下條件: ( ? )小的3db帶寬b ,即最小的主瓣寬度; ( ? )最小的旁瓣最大峰值a ; ( ? )最大的旁瓣峰值衰減速度d ;就內插函數而言,臨近點內插與線性內插重建圖像噪聲大,但有較好的邊緣與細節; 4 4三次內插、三次b -樣條與四次拉格朗日多項式內插圖像平滑,局部特性較好。And introduce the effect of fix - gain filter on angle noise filter, forming velocity loop by replacing sensor for perfecting system emendation and suppling angle interpolation
論述了在濾除角度噪聲,替代角速度傳感器構成速度環路完善系統校正,提供角度插值條件等方面的作用。The performance of vibration and movement of seedlings is validated in the whole vibration plate simulation. an orthogonal experiment is designed for analyzing the effect that the four parameters ( f, co, a, k ) act on horizontal and vertical velocity of seedlings
首先驗證虛擬模型的振動性能與物理原型基本相符,進一步採用正交試驗,考察四個因子(激振頻率山、激振力幅值f 、彈簧剛度k及彈簧傾角)對缽苗推送速度的影響。The algorithm first works out the plane rotation angle of a single human lace and then uses interpolation to make changing rotation to draw a normal human face
首先計算出人臉的平面旋轉角度,然後利用雙線性插值的思想,推導出一種便於編程、速度快的插值方法進行旋轉變換,將其矯正為正面端正人臉。Analysis indicates the " low pressure closed reticular flow region " results in the non - equilibrium of pressure along the primary jet ' s orifice. to obtain as large vectoring angle as possible, the optimal ranges of angles, frequencies, velocity amplitudes, and distances from the microjet actuator to the primary jet exit were discussed. the relationship between the vectoring angle of the primary jet and the phase - difference of two adjacent actuators was analyzed
分析了「拉」模型單作動器模式下,微射流作動器的入射角度、驅動頻率、速度幅值及與主射流間的距離對主射流偏轉程度的影響,並確定了作動器工作參數的最佳范圍;分析了「拉」模型雙作動器模式下,不同的相位差對主流偏轉程度的影響。At the same time, liquid crystal science harvests satisfyingly, its research field has extended to physics, chemistry, electronics, biology, etc. surface orientation of liquid crystal molecule ( lcm ) is a key technique in the application of lcd, the effect of orientation plays an important role in the basic performances, such as uniformity, visual angle, aberration, response, threshold of voltage and so forth
液晶自1976年在世界上首次應用於計算器的顯示屏以來,就以其輕量、薄型、能耗低、顯示面積大等優勢在顯示應用方面得到迅猛發展,而同時,液晶科學也得到了全面發展,研究領域遍及物理、化學、電子學、生物學等各個學科。液晶分子取向控制技術是液晶板顯示應用中的一個關鍵技術,取向程度的好壞對液晶顯示器的均勻性、視角、色差、響應速度、閾值電壓等基本性能都有重要影響。Numerical calculation is applied to discuss the characteristic of bistable state of a revolving single pendulum, and the oscillation of revolving single pendulum in the large angle surround the steady equilibrium point is studied when single pendulum revolves with the angular velocity
摘要利用數值計算的方法分析了旋轉單擺以一定角速度旋轉時的雙穩態特徵及其圍繞穩定平衡位置的大角度振動。Several characteristic parameters are extracted from the angular velocity curve and the acceleration curve of crankshaft instantaneous rotation, and the quality of them is evaluated by use of the gray relation analysis method and the method for inspecting the consistency of the extremum cylinder number
在瞬時轉速曲線和角加速度曲線上提取幾個特徵參數,再用灰色關聯度分析方法和極值缸號一致性檢查法對特徵參數的優良性進行評價。And then simulations of gas - particle two phase plane wake and gas - particle two phase plane jet were carried out by using this model. after numerical simulations of the two flow fields were finished, series of analytical work was done. first, the distribution of time - averaged velocity, turbulence intensity was analyzed, and some of the simulation results were compared with those of the experiments ; the coherent structure of vortices in the near wall region of the plane wake flow were studied by describing the evolution of the eddy structures, including the forming, developing and shedding from the wall of the vortices in the near wall region ; the coherent structure of vortices in the whole field was also studied, such as the forming, developing, moving, pairing and merging of the eddies etc.
在對上述兩種流動形態的二維大渦模擬研究中,首先全面地分析了氣相時均流場的速度、湍流強度的分佈規律以及氣相速度的脈動規律等並就部分數值模擬結果與實驗結果進行了對比研究;分析了平面尾跡流場中近壁處旋渦擬序結構,全面和逼真地反映了近壁處旋渦的生成、發展和脫落的規律;描述分析了平面尾跡流和平面射流的全場流動旋渦擬序結構,從整個流場的角度反映旋渦的生成、發展、運動以及旋渦之間相互配對、合併的作用規律等。For accelerometers can also sense angular velocity and bear large impulse with the character of low cost, so the inertial measurement systems based on accelerometers have good application value
由於線加速度計也可以感受角速度,且它的抗沖擊能力強、成本低,因此用它來組成無陀螺慣性測量系統具有一定的應用價值。The paper discuss the range of slant angle, deduce angle calculation formulae. the paper gives the calculation methods for three axes angular velocity and acceleration caused by ship swing and target moving
討論了傾斜角度的取值范圍,推導出各軸旋轉的角度公式,對船搖和目標運動引起的各軸角速度及加速度的變化給出切實可行的計算方法。This paper introduces a method of calibrating and processing angular speed fluctuation in ni sampling system - pxi - 6281, it accomplishes the acquisition of angular speed fluctuation by distortion of signal, analyzing fundamental wave, high order harmonic of angular speed feedback signal and calculating the amplitude ratio of base wave and high order harmonic
摘要利用ni的pxi - 6281高速數據採集卡來完成角速度波動信號的採集,借鑒信號失真度的概念,分析角速度反饋信號的基波和高次諧波大小,求取高次諧波與基波幅值比,作為角速度波動率。Angle and velocity of each joint is attained directly and no inverse kinematics and polynomial interpolation are needed
該規劃方法直接得到機器人的各關節的轉角和角速度,無需進行運動學反解和多項式插值。分享友人