速位函數 的英文怎麼說
中文拼音 [sùwèihánshǔ]
速位函數
英文
velocity poteutial function- 速 : Ⅰ形容詞(迅速; 快) fast; rapid; quick; speedy Ⅱ名詞1 (速度) speed; velocity 2 (姓氏) a surna...
- 位 : Ⅰ名詞1 (所在或所佔的地方) place; location 2 (職位; 地位) position; post; status 3 (特指皇帝...
- 函 : 名詞1. [書面語] (匣; 封套) case; envelope 2. (信件) letter 3. (姓氏) a surname
- 數 : 數副詞(屢次) frequently; repeatedly
- 函數 : [數學] function函數計算機 function computer; 函數計算器 function calculator; 函數運算 functional operation
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Through the detailed analysis of the aaf, the defection of using chirp - fourier transform in guidance radar signal processing is pointed out
通過對加速度模糊函數的形態分析也指明了針對線性調頻信號的二次相位匹配處理( chirp - fourier變換)在應用到制導雷達信號處理中所存在的缺陷。In this paper, the concept of acceleration ambiguity function ( aaf ) and acceleration resolution is put forward for the first time. using aaf, the effects of target ' s relative acceleration on several outputs of a linear - phase matched filter are analyzed, such as the output signal - noise - ratio loss, the doppler resolution, the constraint on optimal accumulative time ( opt ) and their tolerable limits
論文首次提出並研究了加速度模糊函數和加速度分辨力的有關概念,並以加速度模糊函數為分析工具,詳細討論了加速度對線性相位匹配濾波器的輸出信噪比的損失程度、對多卜勒頻率分辨能力的影響程度、對最優相參積累時間的約束關系以及線性相位匹配濾波器輸出受加速度影響的容限等問題。Superficially it is quite safe to phase advance an accelerometer signal as the error signal has been filtered by the servo and the alrframe transfer function.
從表面上看,因為誤差信號已被伺服機構和彈體傳遞函數濾波,所以讓加速度計信號經相位超前網路是不會有問題的。The results show that the cps signals have the thumbtack - typed ambiguity, no distance and / or speed ambiguity and excellent speed / distance measuring performances. 3. we analyze anti - interference performances of the uniform ppm - ps radar signals and the random ppm - ps radar signals, and make the comparison between them
研究結果表明隨機脈位調制與隨機二相碼調相復合脈沖串信號具有「圖釘型」的模糊函數,不存在距離速度模糊,具有良好的測距測速性能。It can save the information near lips, which may be deleted by the method based on two points. ( 2 ) based on the analysis of current methods, a new multi - pose facial feature location algorithm is developed, which is based on the analysis of multi - feature and integral projection, the combination of an iterative search with a confidence function and template matching. the algorithm not only improves the location accuracy, but also speeds up a great deal. ( 3 ) based on the analysis of the advantages and disadvantages of current feature extraction methods, an adaptive facial feature selection criterion is developed, which is based on facial local feature protrusion consisting of several aspects, such as face image resolution and image quality
其後研究了人臉特徵提取,一、討論了適合於多姿態人臉識別的基於三點仿射變換的人臉圖像歸一化方法,以克服基於兩點仿射變換會引起較大圖像信息損失的缺陷;二、在分析現有器官定位演算法的基礎上,提出了新多姿態人臉器官特徵定位技術,將多特徵和直方圖分析、基於置信度函數的迭代搜索和模板匹配相結合,既提高了器官定位精度,又提高了定位速度。At first we improve the methods of iris image preprocessing, including an efficient arithmetic of evaluation iris images, an improving method of locating iris, calibrating iris image by the translation of coordinate and the circular shift of code, a eatimate of the background illumination by bicubic spline, and the image enhancement by the dual tree complex wavelet transform. next we designed the recognition arithmetic based on the location of the local maxima of the wavelet transform modulus. in the thesis lots of simulation are performed by means of matlab and visual c + +
首先改進了虹膜預處理方法,實現了一種快速高效的虹膜質量評價演算法;設計了一種改進的兩步虹膜定位演算法,準確的定位了虹膜的內外邊界;利用坐標轉換和編碼的循環移位實現了對虹膜圖像的配準;利用雙三次樣條函數擬合虹膜圖像背景,去除了非均勻光照對虹膜識別的影響;使用二分樹復數小波方法增強了虹膜圖像的對比度;在識別演算法方面,本文設計了一種「基於小波模極值點位置的虹膜識別演算法」 。By analyzing phase angle of meshing geometric drawing position, the theoretical formula of cycloid gear actual operating space of cycloid planetary gear speed reducer is driven, at the same time, fitting a curve, and discussing engineering significance of function curve to combine reality
摘要通過分析嚙合相位角幾何圖形的位置,推導出擺線針輪行星減速器中擺線輪實際工作范圍的理論公式,畫出了嚙合相位角函數的擬合曲線,並結合實際討論其函數曲線的工程意義。Nevertheless, the results provided by these methods are all inaccurate. in this thesis, in order to overcome the drawbacks, we reconstruct the bose - hubbard model hamiltonian with differential realization of bosonic operators, and investigate the exact numerical solutions of the one dimension bose - hubbard model. firstly, energy matrices can be generated rapidly by using a mathematica package
首先利用mathematica程序快速生成模型在各種位型下能量矩陣,然後將該程序的結果直接作為其它矩陣對角化程序的輸入而求出該模型在相應位型下的本徵值和相應的本徵波函數。And then, the cavity flow is simulated, and the streamline and pressure contour at different reynolds number are plotted, the stream function and location of vortex centers are agree well with the previous results, which indicate the incompressible lattice bgk model is reliable
進而對方腔流的速度場和壓力場進行了計算,繪制了不同雷諾數下的流線圖及壓力等高線圖,得到的迴流渦的位置和流函數的值和現有的數據十分吻合,表明本文不可壓格子模型是可靠的。Results rectify that matched field processing based on ray travel time delay is insensitive to the mismatch of sound speed proflle, although the mismatch of ocean bottom depth and receiver location is bad to matched field processing, different forms of cost fimctions could decline the sensitivity
計算結果表明,基於聲傳播時延的匹配場定位對聲速分佈失配是不敏感的。雖然接收基陣位置傾斜和海洋深度誤差對匹配場處理影響較大,但只要選擇適當的代價函數,可以得到克服。The three control systems respectively were as follows : ( 1 ) the measuring part of the first one was displacement piezoelectric sensor. a pair of piezoelectric sensor / actuator was collocated by each side of the first solar array plate. the compensator was h ( s ) = 2395 - s ; ( 2 ) the measuring part of the second one was also displacement piezoelectric sensor. a pair of piezoelectric sensor / actuator was collocated by each side of the whole solarfan. tthe compensator was h ( s ) = 244s ; ( 3 ) the measuring part of the third one was velocity piezoelectric sensor. a pair of piezoelectric sensor / actuator was collocated by each side of the three solars array plates near to the body of satellite
三種控制系統分別是: ( 1 ) 、採用壓電位移傳感器,壓電傳感器驅動器對同位布置於內板的邊緣,控制器補償函數為h ( s ) = 2395s ~ ( 1 2 ) ; ( 2 )採用壓電位移傳感器,壓電傳感器驅動器對同位布置於整個太陽帆板的邊緣,這是一種理想的情況,控制器補償函數為h ( s ) = 244s ~ ( 1 2 ) ; ( 3 )採用壓電速率傳感器,壓電傳感器驅動器對同位布置於靠近星體的三塊基板邊緣,控制器補償函數為h ( s ) = 2370s ~ ( 1 2 ) 。The speed - independent position function of the rotor was given by analyzing the phase current and phase voltage of the permenent magnet brushless dc motor, using the powerful operation function of dsp
利用dsp的強大運算功能,通過分析永磁無刷直流電動機的相電壓與相電流給出轉子速度無關位置函數。4. achieved the high - speed colliding experiment of landslide for the first time, the paper studies the volume distributing ruler of different velocity segment after collide, fits the experiment data via extreme function, obtains the value range of the shape parameter, thereby gets the distributing function of all part of landslide after collide. on the base of above, the paper studies the accelerating effect of partial rock - mass because of colliding, and acquires the relation between accelerating volume and overall volume, and colliding velocity
( 4 )首次進行了滑坡巖體的高速碰撞模型實驗,研究了碰撞解體后不同速度段巖體體積的分佈規律,並應用峰值extreme函數對實驗結果進行了數據擬合,確定出了各形狀參數的取值范圍,從而得到了滑坡巖體高速碰撞后不同塊體的分佈函數,並在此基礎上研究了滑坡巖體碰撞後部分巖體的加速運西南交通大學博士研究生學位論文第2頁動效應,得出了獲得加速的巖體比例與滑坡總體積及碰撞速度的關系。Azimuth corrected velocity function
方位校正速度函數The ga ( genetic algorithm ) is applied to solve the optimal parameters of the mtmd appended in cabin in frequency - domain. 4. the dynamic responses of the cabin with different mtmd are compared under different wind speed
以基於davenport風速譜的位移諧響應根方差為目標函數,應用遺傳演算法,在頻域上獲得了mtmd的最優參數值。A study on the proposed scanlan linearity has discovered that if the self - excited loads and movement of the model and velocity constitute a linear relationship, and the model vibration accounts for a sine function of the frequency, the rate of the high - order harmonic waves should be quite small
考查了scanlan的線性假定:如果自激力與模型運動的位移、速度成線性關系,模型振動是某一頻率的正弦函數,那麼相應的自激力也應是這一頻率的正弦函數,高次諧波的分量應極小。( 5 ) as torsion is increased, the anticlockwise secondary vortexes and the negative area of the stream function increase ; the axial velocity moves anticlockwise ( annular pipe ) or clockwise ( circular pipe ) ; the friction factor ratio finally reaches the value about 1
( 5 )增大撓率,逆時針方向旋轉的一二次渦和流函數的負值區域增大,軸向速度最大值的位置按逆時針(環形截面)或順時針(圓截面)方向旋轉,摩擦系數比最終趨向於1 。In the paper, based on the method of low pair replacing with high pair, the problem of cam design was transferred to that of linkage design. by means of rotary unit vectors, the equations of displacement, velocity and acceleration of the replacement mechanisms were developed. and then, the virtual linkage ' s length and direction were deduced
論文基於高副低代原理,將平面凸輪機構設計與再現函數的平面連桿機構設計統一為同一種方法,運用圓向量函數建立代換機構的位移、速度、加速度矢量方程式,求取虛擬連桿桿長和方向,由此展開凸輪理論廓線、實際廓線、曲率半徑和壓力角的求解,並得出用圓形刀具加工凸輪時刀具中心的軌跡方程。At last, it deduced a new improvement method from the theories, and make use of a new physical concept ? the independent of speed function for accuracy checking up the turns sub - position and the communication point so as to control sensorless brushless dc motor with the breadth regulating - speed scope from zero to high speed. based on the function, it will research the new control method
最後,從理論上推導了新的改進方法,並利用一個新的物理概念? ?與速度無關的位置函數g ( ) ,其能高精度檢測出轉子位置和換相點,以此來控制無刷直流電機,實現電機從零轉速到高轉速的寬速度范圍調節,在此基礎上研究了應用這種新的位置函數的控制策略。Sum - of - gradient - magnitude measure is chosen to adapt all images with different enlargement according to analysis of focusing measures ’ character. for 3d bond targets, it is explained that why focusing window should be placed accurately. efficiency of the whole system is ensured by analyzing shift of focal plane when enlargement ratio is changing
為了保證快速採集到鍵合器件的清晰圖像,通過對調焦評價函數特徵的分析,選擇能夠適應各個放大倍數顯微圖像的梯度作為系統的自動調焦評價函數;針對三維器件說明了調焦窗口正確放置的原則和必要性;分析了變倍過程中聚焦平面位置的變化規律,提高了自動調焦的效率。分享友人