vector measurement 中文意思是什麼
vector measurement
解釋
矢量測量- vector : n 1 【數學】向量，矢量，動徑。2 【航空】飛機航線；航向指示。3 【天文學】幅，矢徑。4 【生物學】帶...
- measurement : n. 1. 測量，計量，量度。2. 份量，尺寸，大小，寬度，厚度，深度（等）。3. 測量法。 measurement goods （按體積、容積計算的）體積貨物。
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The research on autonomous navigation and orbital keeping technology of geosynchronous satellites : selecting position vector in the inertia space and longitude, latitude, radial errors in the hill equation as state variables, the precision of orbit determination caused by track dynamic model error, sampling period, and sensor measurement and install error is analyzed
同步衛星自主導航與軌道保持技術研究：分別選取慣性空間位置矢量和採用hill方程表示的經、緯、向徑誤差作為狀態量，分析軌道動力學模型誤差、采樣周期以及敏感器測量、安裝等誤差對定軌精度的影響。 -
What ’ s more, the precision of thrust vector measurement is also calculated, depending upon the error analysis of nine - component model. a large - scale srm hot test is successfully done on the nine - component thrust vector stand. and the satisfactory results validate that the nine - component model is reasonable and the nine - component thrust vector stand design is feasible
在九分力推力矢量試車臺上成功地進行了一次大型固體火箭發動機地面熱試車，得到了滿意的試驗結果，驗證了九分力模型的合理性和九分力推力矢量試車臺設計的可行性。 -
Secondly, based on the existing international technologic analysis, two different measurement schemes are proposed. one navigation scheme uses pixels as measurements vector, and the other one uses line of sight ( los ) of object celestial body and angles from probe to object body as the measurements vector
其次，通過對國際上現有技術的分析，給出兩種不同的導航觀測方案:一是利用圖像作為觀測量的自主導航;二是利用視線方向及夾角作為觀測量的自主導航。 -
Each unit of transformer is tested in accordance with the following items : winding d. c resistance test. measurement of turn ratio and calibiation of voltage vector relation. measurement of impedance voltage and load loss
直流電阻測試匝數比測量及電壓矢量關系的校定阻抗電壓及負載損耗的測量空載損耗及空載電流的測量工頻耐壓測試感應耐壓測試絕緣電阻測試局部放電測試外觀和尺寸的檢驗銘牌的檢驗等。 -
A new distributed fusion method of radar / ir based on separation and combination of the measurements is proposed after analyzing the influence of rate measurement. the rate information separated from the radar measurements composes a fake vector of ir
在對引入徑向速度測量后雷達跟蹤性能進行分析的基礎上，提出了一種基於測量信息組合優化的雷達/紅外分散式融合方法。 -
Numerical simulations were done to show the distortion of the wavefront and the interference pattern under several kinds of typical plasma density distributions. the ray path in plasma was calculated by the numerical solution of the vector equation of light ray, when the plasma density was closing to the critical electron density of the laser frequency. through the simulations, the factors that influence the measurement were found out under different density distributions and shapes of plasma
在此基礎上，採用數值模擬的方法，計算了在幾種典型的等離子體密度分佈下，激光波面的變化和產生的干涉圖樣；並用光線矢量微分方程的數值解法計算了當等離子體密度接近光頻臨界電子密度時，光線在等離子體中的傳播路徑，從中掌握了在不同的等離子體密度和形狀下，進行干涉測量所應估計到的因素。 -
The main task of this paper concentrates on such parts as calibration of measurement sensor, high speed and accuracy image collection and processing, data fusion of different angle of view, visualization of measuring results. to accomplish sensor calibration, a pinhole model of the camera is employed and an equation of a light plane is setup. parameters such as the m array of the pinhole model and the normal vector of the light plane arc acquired through experiment. in image processing, we adopt the template - changing parallel thinning method to improve processing speed and accuracy
主要研究了攝像機針孔模型的建立及測量傳感器的標定；圖像的快速高精度的採集和處理，在圖像處理中採用多幀平均演算法，很好地解決了速度和精度之間的矛盾制約；根據旋動理論建立空間坐標變換數學模型，進而建立其不同視角下的測量數據融合演算法，生成完整的物體三維數據集合；在vc平臺下編寫三維顯示軟體模塊，完成三維測量結果的可視化，實現了三維物體的任意角度的觀察、任意倍數的放大和縮小、任意方向平移及動畫效果。 -
Piv measures vector fields of continuous phase ( current field ) by measuring tracking particle which traces current field. ptv measures disperse phase ( bubble ) velocity, this technique realizes simultaneity measurement of two phases
Piv演算法通過示蹤粒子測量連續相（水流流場）的矢量場， ptv演算法對分散相（氣相）進行量測，實現了兩相的同時測量。 -
The method that increases the attitude accuracy of strapdown inertial attitude and heading reference system ( siahrs ) with the infromation from inertial measurement unit ( imu ) its own is studied. according to the design idea of damping network in platform type, damping kalman filter in siahrs is designed to enhance the attitude accuracy via integrating attitude calculated by common siahrs and that estimated by accelerometers. in order to evaluate the effectiveness of damping attitude, the vehicle ' s movement should be detected in real - time. for this reason, the state chi - square test is employed in the damping kalman filter, and the failure detection vector are tested, which improves the sensitivity and reliability of failure detection. finally, static and dynamic experiments of actual system demonstrate the effectiveness of the proposed method
本文探討了如何利用慣性測量組合本身的信息來提高捷聯航姿系統的姿態精度.根據平臺式阻尼網路的思想，設計了捷聯式內阻尼卡爾曼濾波器，將慣導系統捷聯解算獲得的姿態與加速度計估計的姿態進行組合，在系統非加速度狀態下，提高了姿態輸出的精度.為了實時監測系統的運動狀態從而判斷內阻尼姿態的有效性，本文成功將狀態2檢驗法應用在內阻尼卡爾曼濾波器中，設計了基於2個狀態傳播器的故障監測器，並通過對故障檢測向量元素的檢驗代替對整個向量的檢驗，提高了故障監測的靈敏度和可靠性.最後，實際系統的動靜態實驗驗證了本文所提出的方法的有效性 -
An on - line minimum - variance estimator was developed for thrust acceleration applied to orbit transfer using discrete - time radar measurements. the mass - flow - rate of propellant was selected as a state variant, which was estimated by employing an integral state model and ekf filter. the variation equations for measurement vector to mass - flow - rate have been established to linearize the discrete - time measurement equations. the algorithm has applied successfully to maneuver process in commanding satellite into geo - stationary orbit. the results show that the algorithm developed here can monitor and determine whether engine works well or failure precisely and quickly during orbit transfer process
飛行器軌道機動過程中，為跟蹤、定位機動目標和干預機動控制過程，需要統計處理離散的雷達觀測量實時估計推進發動機的推力，進而確定飛行器的瞬時軌道參數.本文所述演算法是該工程問題的探討和解決方案.文章建立了軌道機動過程中連續變質量運動模型和離散雷達量測模型，推進發動機的質量秒耗量作為表徵推力加速度的一個近似常量，應用擴展卡爾曼濾波對離散的雷達測量數據進行順序統計處理給出秒耗量的最小方差估計;文章詳細地推導了線性化量測模型的變分方程和觀測矩陣;模擬結果表明該演算法能快速、準確地估計推進發動機的質量秒耗量和向機動目標施加的實際推力 -
This strategy has many advantages : solving the problems that the system is unsteady under super - synchronization ; improving power factor of stator ( it is unity relative to that of rotor ) ; no rotor position sensor and no initial position measurement, easily building up doubly fed speed adjustment system with speed sensorless because adjusting speed is taken in the rotor coordinate and rotor current vector fixing is implemented
該方案由於引入了定子電流勵磁分量的閉環控制，使系統同時具有轉速和勵磁調節兩個調節通道，具有如下優點：一、解決了超同步工作工況不穩定的問題；二、提高了定子側的功率因數（與轉子側功率因數為1相比） 。三、由於速度調節在轉子坐標系下進行，並以轉子電流矢量定向，所以無須轉子位置傳感器，也不用檢測初始位置，易於組成無速度傳感器雙饋調速系統。 -
The multi - port measurement system has the widespread use in microwave measurement, the measurement of multi - port device with two - port vector network analyzer ( vna ) is researched. this paper analyzes the commonly used error models and calibration methods of vna, program a trl calibration procedure for two - port vna, and compare the tested data with the data from vna. the comparison show that the programmed trl calibration procedure is in the same accuracy as the vna
本文討論了兩埠矢量網路分析儀常用的誤差模型和校準方法，編制了兩埠矢量網路分析儀基於trl校準法的校準程序，並把校準后的測量結果和矢量網路分析儀校準后的測量數據做了比較，比較結果說明編制的trl校準程序校準效果和矢量網路分析儀校準的效果相同。 -
Pca model was set up based on the normal history data of the system to detect the sensor faults by comparing the projection on the residual subspace to which the real measurement vector and normal vector were projected
主成分分析法根據系統正常的歷史數據建立數理統計模型，通過傳感器實際測量數據與正常數據在故障子空間投影的比較，對傳感器的故障進行在線檢測。 -
The study shows that the nine - component model and nine - component thrust vector stand can improve the precision of thrust vector measurement greatly
研究表明，九分力模型和九分力推力矢量試車臺提高了推力矢量測量的精度，適合用於測量大型固體火箭發動機的推力矢量。 -
On the part of thrust vector measurement theory, some problems that exist in the six - component model and the six - component thrust vector stand are analyzed, and the solving methods of six - component model are studied. the thrust vector measurement nine - component model is established, and the design idea of curve rail can benefit the nine - component model solving is proposed
在推力矢量測量理論方面，分析了六分力模型及六分力試車臺存在的問題，研究了六分力模型的方程求解方法;建立了推力矢量測量九分力模型，提出了弧形軌的設計思想，解決了九分力模型方程求解問題。 -
Based on widely assimilating the internal and overseas researches, the theory and methods of solid rocket motor ( srm ) thrust vector measurement and the automatic test technology are studied detailedly and comprehensively by means of theoretical analysis, engineering implement and experimental validation. the results attained are as follows
論文在廣泛吸收國內外研究成果的基礎上，藉助理論分析、工程實現和試驗驗證等手段，對火箭發動機地面試驗中的推力矢量測量理論與方法以及自動測試技術進行了系統深入的研究，取得了一系列研究成果。 -
At the same time, for the equidistant surface in practical measurement, special search method is applied for automatic segmentation, so the normal vector of the data at arbitrary position of the space is solved, then radius compensation of probe is implement. so the return is realized from equidistant surface to real measurement surface
針對實際測量中得到的等距曲面，採用空間搜索的方法對數據點分塊，求取了任意測量點法矢，提出了測頭半徑的補償方案，從而實現了由空間等距曲面到被測曲面的復原。 -
The definition and measurement techniques for group delay has been described and analysed in this paper, the new techniques, being called dine - mixer technique and vector - mixer calibration for measuring the absolute group delay of the frequency converters has been researched and analysed in detail also in this paper
摘要描述和分析群時延的含義和測量方法，著重研究了變頻鏈路絕對群時延的測量方法，對三混頻器和矢量混頻器技術進行了詳細分析和論述。 -
By augmenting the state vector, linearizing the nonlinear augmented state space model and adopting the equivalent measurement equation, the problem of strong tracking extended kalman filtering of nonlinear systems with additive combined colored noise can be converted into the problem of strong tracking kalman filtering of linear systems with correlated process and measurement noise
通過增廣狀態向量、線性化非線性的增廣狀態空間模型和採用等效量測方程，將加性復合有色噪聲干擾下非線性系統的強跟蹤濾波問題轉化為過程與量測噪聲相關情況下線性系統的強跟蹤卡爾曼濾波問題。 -
We simply introduce the application of quaternion numbers in inertial measurement, research the calculation of direction cosine array and introduce equal rotating vector to analyze cone error
介紹了四元數法在慣性測量中的應用，研究了方向餘弦矩陣的計算方法，並引入等效旋轉矢量對圓錐誤差進行了分析。
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