估測誤差 的英文怎麼說
中文拼音 [gūcèwùchā]
估測誤差
英文
estimation error-
5. the osl dating of 37 samples of loess in weihe river basin by sar and multiple aliquot methods, indicates that sar protocol appears to be applicable to loess and appropriately correcting for sensitivity changes within the regenerated curves, however, there are major difference between the irsl and post - ir osl de determinations that suggest that sensitivity changes relating to either ( or both ) natural signals may not be correctly monitored
同時，用單片再生劑量法測小干3ha的黃土細顆粒樣品， slsl 、 irsl和post irosl測的年代在誤差范圍內基本相同，接近預估年代；對於3ha ? 10ha的黃土細顆粒樣品，一般post osl測的年代更接近預測值；對于大於10ha的樣品，一般irsl測的年代普遍太小，多數blsl年代也偏小，而p 。Practice for construction of a stepped block and its use to estimate errors produced by speed - of - sound measurement systems for use on solids
階梯式比對試塊結構和用其估算在固體上使用聲速測量系統產生誤差的慣例Based on an m - estimation principle, a robust estimator of parameters of systematic errors model is introduced in every surveying line
4 、基於抗差估計理論，討論了航空重力測量系統誤差模型參數的抗差m估計方法與實現。Estimators of penalized least square for parametric regression and vectors and spline function can be got by compiled program
模擬計算表明，該方法適合於回歸函數模型誤差與測量系統誤差的估計。Algorithms of insar data processing are also key factors, which related directly to the quality of dem and differential interferometric products, so it is necessary to develop advanced data processing algorithms and evaluate the accuracy of sar interferometry
數據處理演算法的優劣，直接影響到所提取的dem及差分干涉測量產品的質量。因此，發展更為完善的數據處理演算法及對干涉測量的誤差進行評估，是目前干涉測量研究的必需，也是干涉sar遙感創新研究的需要。The main characteristics and advantages are : on one hand, we adopted the low - complexity bussgang algorithm, and did blind estimation to ofdm sub - channel according to the mean square error criterion ( mse ) and peak distortion criterion ; on the other hand, we used the differential detection, which accelerates the convergence speed and avoid the error transmission problem resulted from the bussgang algorithm
這兩種演算法一方面採用了低復雜度的bussgang自適應演算法，分別依據均方誤差準則和峰值失真準則對ofdm系統子通道進行盲估計；另一方面通過引入差分檢測技術，加快了演算法收斂速度，克服了bussgang演算法帶來的誤差傳播問題。Firstly, the mathematical method, wavelet transform of random error processing and kalman filtering algorithm of system error estimation, is designated ; the process of development of wavelet transform and its present research is recommended ; and, the definition and development situation of real - time data processing and post - flight data processing of trajectory measurement data is summarized briefly
首先指出了應用的數學方法，即處理隨機誤差的小波變換方法和估計系統誤差的kalman濾波演算法;介紹了小波變換方法的發展過程和國內外的研究現狀;綜述了彈道測量數據的實時數據處理和事後數據處理的概念和發展狀況。Finally, a method is put forward to construct the nurbs curves on sphere, which extends the de boor recursive algorithm in r3 to one on the sphere by replacing the geodesic distances for the lines and studies their many geometric properties analogous to those in euclidean spaces, such as the differential property, the local property, the parameter invariance under a projective transformation, and so on
兩種方法均給出誤差估計，使逼近螺線可達到任何預先給定的精確階。最後，給出球面nurbs曲線生成演算法：用球面上測地線? ?劣大圓弧代替直線段，將歐氏空間r ~ 3中的deboor遞推演算法推廣到球面上構造麯線。In the process of gps triple frequency observables, the rms of the integer ambiguity isn ' t fit for detecting and correcting cycle slips for the pseudo - range noise
摘要在gps三頻非差觀測數據的處理中，由於偽距噪聲的影響，利用原始的偽距和載波相位觀測數據估計的模糊度誤差比較大，不能用於探測和改正周跳。After establishing induction motor simulation model with iron loss, this paper has investigated effect of iron loss and proposed two schemes to compensate estimated error due to iron : one modified the structure of controller, the other modified the structure of observer, both schemes eliminated the detuning effect of iron
對于鐵耗的影響，本文建立了考慮鐵耗的感應電機模擬模型后，研究了鐵耗造成的估計誤差，並利用兩種方法對誤差進行補償，一種是修改控制器結構的方法，另一種是修改觀測器結構的方法，最終都較好地消除鐵耗對速度估計的影響。Aiming at regression analysis of prediction variable with error, this paper discusses the estimation of regression of coefficient, and a method is given
林業科學試驗的預測模型中往往帶有測量誤差，此時回歸系數的估計不具有無偏性。為解決這一問題，從合理安排試驗的角度，給出了一個有效的解決辦法。Abstract : it is shown in this paper that distributions of electric fields in five measuring slots of uster evenness tester, and the errors caused by uneven electric fields were analysed. according to the results of measuring and analysing electric fields, a set of tests were made, and several estimation to the errors were given. at last, notices of operation were given
文摘:實測了烏斯特紗線均勻度試驗儀上5個電容測量槽的電場強度分佈，分析了由測量槽不均勻電場所引入的誤差.系統地測試分析了第5號槽誤差，獲得了幾種誤差的定量估計.最後給出了正確使用儀器，避免測量誤差所應注意的幾點結論The calibrating technology is mainly divided into two groups : the off - line ones and the on - line ones. the former one is now widely used in the monopulse system to calibrate the amplitude and phase imbalances between the sum and difference channels by injecting test signals
離線校正的方法是現階段單脈沖雷達系統進行和差通道幅相校正採用的主要方法，它通過注入測試信號的方法來得到對誤差接收通道幅相特性的估計。Based on the multivariable analog of civcle criterion, an observer is designed to estimate the system states and hence the dynamical equations satisfied by the estimation error are derived first
基於多變量的圓判據設計觀測器來估計系統的狀態，進而給出了觀測誤差滿足的動態方程，然後利用積分反推方法，構造性地設計出了輸出反饋鎮定控制器。Thereafter, the rfq - pcr method for the detection and enumeration of s. costatum cells is established with primer6 ( f / r ) and taqman6. the regression curve for enumeration is delineated according to the development of the fluorescent densities in the rfq - pcr with the increasing number of s. costatum cells. the regression equation is y = - 3. 3427x + 43. 443, in which x indicates the log10 of cell number, and y indicates the ct values, with r2 of 0. 9788
以rfq一pcr中實際細胞數的常用對數值為橫座標，以測得的ct值為縱座標，繪制出了定量檢測的標準曲線，該曲線的回歸方程為: y =一3 . 3427x + 43 . 443 ，其相關系數是: rz二0 . 9788 ， ct值的標準估計誤差為sy 』 x二0 . 6741 。The observer makes use of motor parameters to estimate speed, but these parameters ( stator and rotor resistance, magnetizing inductance ) will vary because of the change of environmental temperature, iron loss and main flux saturation. so parameter variation will lead to the error of estimation, the purpose of this paper is to study the influence and the compensation of parameter variation
因為觀測器在估計轉速時利用的是電機的額定參數，而電機的參數（定子電阻、轉子電阻、勵磁電感）由於環境溫度的變化、鐵心損耗和主磁飽和的影響將發生變化，所以必然有估計誤差產生。Its influence on measurement precision of sediment concentration is also analyzed and the result indicates that a specific estimation error will bring about equal error
同時從理論上分析了質量吸收系數變化對泥沙含量測量精度的影響，結果表明質量吸收系數的一定估計誤差將引起泥沙含量測量結果的等量誤差。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In special ly, the est imat ion of power spectra1 densi ty ( psd ) can be get in burg method which estimate reflection coefficient firstly, then get the ar parameter est imat ion usi ng the levinson recursion
用遞推方法對不同階的預測是通過使預測誤差功率的估計值達到極小，從而得到反射系數估計值的，最終得到功率譜估計值。At the same time, the influence of the parameter - estimating error and the noise on amplitude of the signal are discussed, and simulation was performed to validate the analysis result
同時，還從理論上分析了參數估計誤差和信號幅度噪聲對測量時鐘抖動的影響，並進行了模擬驗證。分享友人