角精度 的英文怎麼說
中文拼音 [jiǎojīngdù]
角精度
英文
angular accuracy-
Dynamic model of satellite is built up with astronomic method, and a short - arch forecast arithmetic of satellite orbit in short arch with single site is given, which is of high precision when only angle data is available
本文使用了天文方法建立了人造衛星運動的數學模型，給出了一種只使用單站短弧段測角數據對人造衛星軌道進行高精度預測的演算法。Precision measurement of multi - chip ccds system in goniometer
拼接相機測角精度檢測The assimilation scheme uses a blending approach based on optimal linear interpolation. the improvement is 45 % for the phase - lag of s2 after assimilating the altimetric data of the crossover points, while the correction for the diurnal constituents is not so good as for semidiurnal constituents
利用基於最優插值法的混合法將交叉點的調和常數同化到動力模式中，同化后s _ 2分潮的遲角精度改進最大，可以改進45 ，結果顯示高度計資料的分析結果對模式結果的精度影響很大。The short - baseline interferometer ’ s angle measurement accuracy is influenced by phase difference measuring accuracy, the base length measuring accuracy, the system operating wavelength ( frequency ) and so on, the article analyzes the existing theory, and emphatically analyzes the influence of base length measuring accuracy to the precision of angle measurement
短基線干涉儀測角精度受相位差測量精度、基線長度測量精度、系統工作波長（頻率）測量精度等因素的影響，文中，在對原有理論進行分析的基礎上著重分析了基線長度測量精度對系統角度測量精度的影響。Numerical and experimental results show that good angular superresolution and high estimation accuracy can be achieved provided that the radar pulse repetition time is small enough so that the echoes can be considered sufficiently correlated
結果表明，在雷達的脈沖重復周期同目標的抖動相比足夠小的情況下，相位權重法可以取得較好的方位解析度和較高的測角精度。Monopulse radar is widely used for its high angle measurement and powerful anti - jamming performance
摘要單脈沖雷達因其測角精度高，抗干擾能力強，使其得到了廣泛的應用。And the precision of the former is better than the later
而且濾波后的測角精度高於濾波前。High processing accuracy due to superprecision linear motion pair adopted in moving parts
運動部分採用高精度直線軸承運動副，組角精度高。In comparison, it is that by using the curvefitting method, the hardware implementation is simple and the measured angle has a high precision
從比較中看出，採用曲線擬和的方法，硬體實現簡單，測角精度也比較高。2. the condition of prs tracking the stronger source between dual sources is given quantitatively, this condition is of great value to designing a real prs. 3
定量地給出了在一定的置信水平和測角精度的要求下，為分辨出兩點源doa ， prs應滿足的條件。According to the uncertainty theory, this paper analyzes how the technical criteria influence the accuracy of angle measurement and gets synthetical formula of angle measuring error
論文研究了接收機各項技術指標對測角精度綜合影響的問題，基於不確定度理論，得出了測角誤差的合成公式。Finally, a kind of noncoherent - integration monopulse radar angle measuring algorithm based on square amplitude weighting method is developed, the computer simulation proves that this algorithm is prior to the common noncoherent - integration angle measuring method under all kinds of snr conditions
最後提出一種基於幅度平方加權的單脈沖雷達非相參積累測角演算法，模擬表明在各種信噪比條件下這種方法的測角精度都優于常規的非相參積累測角方法。This paper analyses the effect in receiver of each technical criteria of mono - pulse radar, detailedly analyses the influence to angle measuring precision of each technical criteria of the receiver and results in technical criteria which is important to angle measuring precision. then, measuring and compensating methods on channel discrepancy
論文分析了單脈沖雷達接收機的各項技術指標在接收機中的作用，著重分析了接收機的各項技術指標對測角精度的影響，得出了對測角精度而言，較重要的接收機技術指標，論文還討論了通道不一致性的測量和補償的方法。Angle measuring precision phase sum / difference mono - pulse radar receiver is not only related to accurate strike to target, but also the base of successful penetration of interceptor missile for tbm anti - guidance system using two point sources of correlation, which is one of radar angle fraud technologies. thus, research on technical criteria influencing angle measuring precision of receiver is meaningful
相位和差單脈沖雷達接收機的測角精度，不僅關繫到是否能精確地打擊目標，而且是tbm反制導系統利用相干兩點源雷達角欺騙技術，成功突防攔截導彈的基礎，所以對影響測角精度的接收機各項技術指標進行研究具有重要意義。Methods based on statistics for dimensional position and data processing were suggested for the calibration of the dimensional angle shown by a programmable dynamic target using linear matrix ccd and video interpretation. studies in this paper show that the programmable target system is functional and capable of testing photoelectric theodolite. consequently conclusions can be drawn that programmable dynamic target is new equipment to tes t photoelectric theodolite, not only can it check and test the performance, but also can measure the precision
得出了初步結論：可編程動態靶標由於配置了位置輸出元件和時間統一系統，實現了位置閉合，能對靶標的運動進行有規律的控制，克服了常規旋轉靶標的固有缺點，可以提供模擬目標的空間標準角，因此可編程動態靶標不僅可以作為跟蹤靶標使用，還可以作為測量靶標使用，是檢測光電經緯儀跟蹤性能和測角精度的新裝置。Traditional inertial mechanized - platform uses velocities to damp the system attitude to improve the precision of attitude, when the system acceleration is small. referring to the idea, this paper designeda damp kalman filter in strap - down attitude heading reference system ( ahrs ). the new method makes use of 3 - d accelerometer ' s measurements to estimate the system attitude, which is measured to compensate attitude errors. because the acceleration affected the precision of fiher directly, the fuzzy adaptive system was presented. the fuzzy logic inputs are three accelerations and the output is to control the measurement noise covariance matrix. simulations and experimental results prove that the damp algorithm can damp most of schuler oscillation and foucauh oscillation, so that to assure the filter convergence and efficiently improve the precision of strap - down ahrs
在系統機動性不強的情況下，傳統的平臺內阻尼演算法將系統本身的速度信息通過阻尼網路加到系統中，達到提高姿態角精度的目的.將這種平臺內阻尼的思想引入到捷聯慣性航姿系統中，在系統加速度較小的情況下，利用加速度計的輸出估計系統姿態角，通過卡爾曼濾波的形式補償系統姿態誤差.由於加速度的大小直接影響濾波器精度，本文設計了模糊自適應卡爾曼濾波演算法，根據三軸加速度計的輸出調整內阻尼量測誤差方差陣，從而避免了濾波器的發散.模擬和實驗驗證，內阻尼演算法可明顯抑制舒勒周期振蕩和傅科周期振蕩，避免了系統姿態漂移，有效提高了捷聯慣性航姿系統的精度The results indicate that : with sa, the position precision of the integrated system, whose gyro drifting is 50 degree / hour and whose accelerator offset is 0. 001g, is 60 meters, its velocity precision is about 1. 75m / s out and its attitude angle precision is about 0. 25 degree. without sa, the position precision is about 20 meters, its velocity precision is about 0. 5m / s and its attitude angle precision is about 0. 1 degree. when the signal of gps is lost, the growing rate of the integrated system error is much lower than that of sins system
模擬結果表明：對于陀螺漂移為50度/小時、加速度計零偏為0 . 001g的組合系統，在有sa的情況下，位置精度大約為60米，速度精度大約為1 . 75米/秒，姿態角精度大約為0 . 25度；在無sa的情況下，位置精度大約為20米，速度精度大約為0 . 5米/秒，姿態角精度大約為0 . 1度；在gps信號丟失時，系統誤差的增長速度比純sins系統明顯減緩。The principle of angle measurement of short - baseline interferometer is that using phase difference between returning signals to obtain the angle of the target. the method has high precision, but has the phase ambiguity problem inevitably, the article give the explanation to the short - baseline interferometer about these two questions
短基線干涉儀測角的基本原理是相位法測角，即利用系統中不同接收站之間的相位差來獲得目標的方位角信息，具有測角精度高的優點，但卻不可避免的存在著測角模糊的問題，文中對短基線干涉儀這兩個基本問題進行了說明。The author first explains that large - scale measurement device is one of the most basic measuring methods of obtaining external trajectory data and flight status. lt is pointed out that the accurateness of the main - item axis system deviation correction ( including vertical, level and collimating axis deviation ) of large - scale measurement device error is of critical importance to the precison of measuring device ' s surveying angles. to improve its precison, the influence of axis system deviation on surveying angles must be corrected
首先說明了在現代航天靶場中，大型測量設備是獲取外彈道數據和飛行狀態的最基本的測量手段之一，指出大型測量設備測量系統誤差的主項軸系偏差（包括垂直軸偏差、水平軸偏差和照準軸偏差）改正的精確與否直接關繫到測量設備的測角精度，因此要提高測量設備的測角精度，必須對軸系偏差對測量角的影響進行改正。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。分享友人