相角誤差 的英文怎麼說
中文拼音 [xiāngjiǎowùchā]
相角誤差
英文
phase angle error- 相 : 相Ⅰ名詞1 (相貌; 外貌) looks; appearance 2 (坐、立等的姿態) bearing; posture 3 [物理學] (相位...
- 角 : 角Ⅰ名詞1 (牛、羊、 鹿等頭上長出的堅硬的東西) horn 2 (古時軍中吹的樂器) bugle; horn 3 (形狀像...
- 誤 : Ⅰ名詞(錯誤) mistake; error Ⅱ動詞1 (弄錯) mistake; misunderstand 2 (耽誤) miss 3 (使受損害...
- 差 : 差Ⅰ名詞1 (不相同; 不相合) difference; dissimilarity 2 (差錯) mistake 3 [數學] (差數) differ...
- 誤差 : error
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Its main contributions include the following several aspects : firstly, the dissertation constructs the mathematic model of short baseline orientation determination using two geostationary satellites and analyses the applicable conditions of carrier phase interferometry. orientation determination precision is analysed in depth through both the conventional linearized method and monte - carlo computer simulation method, and the mathematical simulation results show that the linearized method has the shortcoming of fairly low elevation error analysis precision in high latitude area so as not to be very appropriate there. by analyzing the definite factors influencing orientation precision, the dissertation develops the concept of orientation dilution of precision, which uncovers the internal cause of exotic error behavior of bi - satellite orientation, and has important guiding significance for practical engineering applications
本文系統地研究了基於「北斗一號」衛星載波相位干涉測量原理實現地球靜止雙星定向的相關技術,主要研究成果包括以下幾方面:首先,建立了利用兩顆地球靜止軌道衛星進行短基線定向的數學模型,分析了載波相位干涉測量的適用條件;採用傳統的線性化解析法及蒙特卡洛隨機模擬法兩種途徑對雙星定向的精度進行了詳細分析,數學模擬結果表明在高緯度地區線性化解析法由於俯仰角誤差分析精度略有下降而不太適合;在分析定向精度確定性影響因素的基礎上,提出了雙星定向精度衰減因子odop的概念,揭示了雙星定向誤差特殊表現的內部機理,對實際工程應用具有重要的指導意義。The compensative relations between the tilt angular errors and groove - width difference were obtained and the compensative methods were discussed
針對光柵拼接中的轉角誤差和光柵常數誤差,得到了誤差間的相互補償關系式,並對補償方式進行了討論。We prove theoretically that under certain reasonable assumptions the formation is asymptotically stable even wills bounded disturbances ; that is, the proposed sliding mode controller can asymptotically stabilize the errors in relative distance, relative bearing and heading direction, respectively
在合理的假設下,從理論上證明了存在有界干擾情形下機器人編隊的漸近穩定性,即所設計的滑模控制器使得相對距離誤差、方位角誤差及運動方向誤差漸近穩定。Based on the psf, some basic characters including reconstructed image lateral resolution and the size limit of the recorded object in the in - line phase - shifting digital holography are theoretically discussed
第四章討論了同軸相移數字全息中,相移角的選取、相移誤差以及量化誤差對再現像的影響。In angle measuring, an antenna configuration and interferometer ambiguity - resolving algorithm are proposed, and to eliminate the error caused by carrier phase error, a correction method is introduced, through which all ambiguity - resolving error can be recognized and he corrected even when the error probability is up to 0. 42
在測角中,提出了一種干涉儀天線陣結構和干涉儀解模糊演算法,針對通道載波相位誤差可能引起的解模糊錯誤,又提出了一種糾正方法,模擬顯示,在發生解模糊錯誤的概率高達0 . 42的情況下,該方法仍然可以識別並糾正所有解模糊錯誤。Chapter 4 : the influence of different phase - shifting angle of reference wave in recording, of the phase - shifting error and of the quantization error on the quality of the reconstructed image is investigated respectively in two - step phase - shifting inline digital holography. and an effective method of eliminating the phase - shifting error is presented, in which the summation of the intensity bit errors of the reconstructed image is taken as an evaluation function for an iterative algorithm to find the exact phase - shifting value. the feasibility of this method is demonstrated by computer simulation
通過數值分析不同相移角的選取對再現像的強度誤差的影響,發現再現像強度誤差依賴于記錄時相移角的選取,當相移角在一定范圍內,其再現像的強度誤差相對較小;提出了一種有效消除相移誤差的新方法,並將其應用於二步同軸相移數字全息,對此進行了計算機模擬,得到了很好的結果,證明該方法對于相移誤差的消除是很有效的;對量化誤差所作的數值模擬發現,當信號被量化成8比特( bit ) ,即256個灰度級以上,量化噪聲的影響相對較小。For compensating the nonlinear error between winding current and the result magnetic field of stepper motor, the method of minimum square is adopted to fit and correct the error curve of subdivision step angle, and the subdivision precision is improved
為了補償步進電機相繞組電流與其產生磁場之間非線性引起的誤差,採用了最小二乘法對細分步距角誤差曲線進行了擬合與修正,提高了細分精度。The position errors are measured by two dimension single - frequency laser interferometer, the pitch and yaw errors are tested using phase shifting interferometer with a resolution of 0. 1nm, the linearity along motion axis is investigated by autocollimator with 0. 01 " uncertainty
利用單頻激光干涉儀測試其運動定位誤差特性,相位偏移干涉法測試運動轉角誤差,光電自準儀測試其運動偏擺誤差。For the measurement of analog signals such as voltage and current of astg, a filter card for pre - disposing is designed, in order to improve real - time performance, algorithms for ac analog sampling is simplified, and a compensation algorithms for phase error due to sequence - sampling is brought forward. for the measurement of impulse - width signals such as rotor - speed and rotor - position - angle, an intelligent interface card based on isa bus is designed. all programs for measure and control based on c + + are compiled and debugged and the flow for system debugging is summarized
為了提高實時性,對交流采樣演算法進行了簡化,並提出了由於非同步順序采樣所造成的相位誤差的補償演算法;針對轉速、轉子位置角等脈沖寬度信號的測量,深入分析了測量原理,設計了基於isa總線的智能介面卡;編制和調試了基於c + +的全部測量控製程序;完成了整個系統的調試,並總結了調試方法。The kalman filter theory is introduced and the dynamic error vector equation of the initial alignment is derived at the first. using velocity error as exterior value of observation, maneuverable characteristic that is influenced with system ' s observability and its degree is studied at length by do amount of simulations and experiences. choosing output error of accelerometers and angle error of attitude as observation respectively and system observation model is derived, which is based on analyzing kalman filter theory
首先介紹了卡爾曼濾波理論及相關技術,建立了系統卡爾曼濾波的狀態方程和觀測方程;首先採用速度誤差作為觀測值,詳盡的研究了系統機動特性對可觀測性和可觀測度的影響,並做了大量模擬實驗:通過對濾波原理的分析研究了影響的原因;分別選用加速度計輸出誤差和轉臺輸出姿態角誤差作為外部觀測值,推導建立它們的觀測模型,並通過模擬證明了分析結論的正確性。In this topic, the error characteristic of resistance voltage sensor was analyzed in theory, by using electric circuit analysis, the reasons which affected its error were gotten. based on theory analyses, initial structure was designed. then by using fem ( finite element method ) of simple resonance field, several structures electromagnetic field was calculated, and their amplitude errors, phase errors, maximum of electric field intensity and frequency characteristic of amplitude error were contrasted
本文從理論上分析了電阻式電壓傳感器的誤差,用電路分析法定性的研究了影響電阻分壓器誤差的因素;在理論分析的基礎上進行了電阻分壓器結構的初步設計;基於該設計,利用簡諧場的有限元方法進行了場的計算,比較了幾種結構方案的幅值誤差、相角誤差、最大場強值及其幅值誤差的頻率特性,從而得到一種最優方案;製作了分壓器樣機,並在本實驗室進行了實驗;最後,對電子電路部分進行了初步設計,並提出了抗干擾的措施。After considering the coupling of the mounting errors and elastic deformation, the meshing influences of the error of the center distance, the setting parametric error in the axial direction, and the intersect angle between the two axes on transmission performance are investigated. 4
考慮到安裝誤差和載荷作用下的彈性變形等非共軛因素耦合作用,分析了漸開線蝸桿傳動在安裝時存在中心距誤差,軸間相對位置誤差,軸間相對夾角誤差對其承載嚙合的影響; 4Finally we measured the performance of the system, analyzed phase error ’ s influence on angle precision of simulated signal and gave the solution
最後對模擬器系統的性能進行了測試,分析了系統中相位誤差對信號模擬角度精度的影響,並給出了解決辦法。The main content of this paper can be concluded as followings : 1 ) this paper investigates the influence of the main parameters measure error to the at - insar speed measurement accuracy, and analyzes the influence of the interferometric phase error and the incidence angle error caused by thermal noise to the imaging precision
本文的主要內容可歸結到以下幾個方面: 1 ) 、對引起測速精度變化的主要參數:干涉相位、基線和入射角的誤差對測速精度的影響進行了研究,並對熱噪聲引起的干涉相位誤差和測角誤差對測速精度的影響進行了分析。The fact that the local dynamical model has superior performance of predicting the reverberation sequence to the classical random ar model also reveals that the reverberation is more suitable for the deterministic model
比較經典的隨機ar模型和局部動力學線性模型的預測性能,發現後者平均相對誤差小,可預測長度長。這個事實在一定程度上(至少從預測的角度看)說明混響過程更適合於確定性建模。Testing the standard error of horizontal direction with a equi - spaced scale and processing the tested data with the method of relitive adjustment, we obtain that the testing error of leveling angle is less than one third of the error of leveling angle, which testifies the validity and feasibility of the method
摘要針對全站儀精度,採用等間隔標尺檢測的方法測定水平方向標準差,用相關參數平差的方法對檢測數據進行處理,求取全站儀水平測角精度,得到水平角測定誤差小於水平角誤差的三分之一,實驗證明該方法的正確性和可行性。Initial rotational stiffness ri and ultimate moment capacity mu of top - and seat - angle steel connections is given in this text. initial rotational stiffness rt and ultimate moment capacity mu of top - and seat - angle with double web - angle steel connections is given in this text. it is right by comparison with experiment
推導了頂底角鋼、腹板雙角鋼連接的初始連接剛度r _ i ,頂底角鋼、腹板雙角鋼連接的極限彎矩承載力並經和試驗比較得出兩種連接型式的初始連接剛度、極限彎距承載力其理論值和試驗值的相對誤差在工程允許的范圍內。The impact on the system of direction finding for the existence of baselines ' obliquity is approved in actual system
給出了相位差和基線傾角的對應關系,並在實際系統中證實了基線傾角的存在產生的相位誤差對整個測向系統的影響。The measuring system to measure the dimensional rotation errors of the namcs is configured. the principium experiment verified this method. 3
將相位偏移干涉測量技術應用於測量與校準系統運動轉角誤差測量,初步試驗驗證了該方法的可行性。The phase error brought in baselines ' obliquity is analysed specially and the connection to phase difference and baselines ' obliquity is proposed
著重分析了基線傾角的存在引起的相位誤差,經分析得出當傾角不為0時,相位函數不再是一條直線,誤差的大小與入射角有關。分享友人