robust estimate 中文意思是什麼
robust estimate
解釋
堅穩估計-
This robust adaptive control uses the identifier to estimate the unkonwn parameter and a " certainty - equivalence " to form a self - adaptive controlling design so as to realize the separation from identifier and controller in design
用辨識器估計系統未知參數，利用「確定性等價原則」構成自適應控制方案，從而實現了辨識器與控制器設計的完全分離。 -
While it ' s always possible to estimate robust standard errors for ols estimates, if we know something about the specific form of the heteroskedasticity, we can transform the model into one that has homoskedastic errors ? called weighted least squares
對ols估計穩健標準差總是可能辦到的，但是，如果我們知道一些關于異方差結構的信息，我們可以將原模型轉化為具有同方差的新模型，這稱為加權最小二乘法。 -
Secondly, we present a new transmit diversity scheme with adaptive power allocation in which two antennas are employed at the transmitter, and the effect of the channel estimation error on its performance is also analyzed. theoretical analysis and simulation results indicate that the new scheme has a considerable performance gain and is robust to the estimate bias of channel fading parameters
其次，提出了在雙天線發送分集中對不同天線的發送功率進行優化分配的技術方案，並分析了通道估計誤差對其性能的影響，理論分析和模擬結果表明：在alamouti雙天線發送分集中採用自適應優化功率分配，不僅提高了系統的性能，還可以提高其對通道估計誤差的魯棒性。 -
As neural network has the ability of self - learning, that utilizes prior output data of uncertain system to estimate iteratively the static state property of system in order to achieve ideal approaching precision for identification of the positive model, a robust iterative learning control scheme on the basis of better positive model is designed. the neural network is used to identify the positive model of nonlinear system on iterative axis, which can give feed - forward action of iterative learning controller to reduce the effects of nonlinear properties and model uncertainties. meanwhile, feedback action of iterative learning controller make joint movement follow the desired trajectory on time axis by using controlled parameters derived by the neural network
由於神經網路具有自學習能力，它可利用不確定性系統的歷史輸出數據對系統的穩態特性進行估計，使得對系統正向模型的辨識達到理想的逼近精度，然後在此正向模型的基礎上進行學習控制律的設計：即採用神經網路辨識非線性系統的正向模型，並消除系統不確定性和外部干擾的影響，使關節運動沿迭代軸方向逼近期望軌跡；迭代學習控制器在線學習控制參量，使關節運動沿時間軸方向跟蹤期望軌跡。 -
At the basis of analyzing different boundary tracking algorithms, boundary point estimate algorithm based on angle and boundary point searching algorithm based on circumferential neighborhood extending were advanced to avoid tracking trap and to improve the robust of the boundary tracking algorithm
通過分析不同演算法的特點，提出了基於已知點夾角的邊界點預估計演算法和基於圓弧鄰域擴展的邊界點搜索演算法，以避免跟蹤進入搜索陷阱，提高邊界跟蹤對邊界變化的魯棒性。 -
In order to obtain an optimal estimate of the tilt angle and angle velocity, an indirect kalman filter configuration combining a rate gyroscope sensor and an accelerometer is implemented. because of the extreme nonlinearity of the two - wheeled self - balancing robot, application feasibility of nonlinear system control strategy based on linear approximation method, exact linearization and intelligent control have been investigated. according to robustness, balancing performance and environment adaptability, robust tracking control, linear quadratic regulator and fuzzy model reference learning control are implemented to the velocity controller
針對具有強非線性的前進子系統，論證了基於近似線性化、精確線性化及智能控制的非線性系統控制策略的應用可行性，據此按照不同性能要求設計了三種前進速度控制器:漸近跟蹤魯棒調節器簡單精確，具有良好的干擾抑制能力;二次型最優跟蹤控制器，在耗能最小的條件下，大大提高系統的平衡能力;而基於動態聚焦學習的模糊模型參考學習控制則兼具平衡性能好、環境適應性強、精度高及魯棒性好的優點。 -
Take the hoc based blind modulation detection algorithm as an example, the relationship between the blind modulation detection algorithm and synchronization is investigated. an unproved detection algorithm robust to frequency offset is proposed which solves the problem caused by the error in carrier synchronization. how to synchronize a received signal with unknown modulation type is studied and a blind algorithm to estimate symbol timing of the signals with unknown modulation type is presented
研究了載波同步和碼元定時同步與調制方式盲檢測演算法的關系；以自適應單載波中高階累積量調制方式盲檢測演算法為例，對于載波同步誤差引起的頻偏問題，提出一種基於頻偏穩健的mdpsk信號調制方式盲檢測演算法；對于未知調制方式信號的定時同步問題，提出一種盲定時估計演算法，該演算法可以估計mdpsk和mqam信號的定時同步信息，實現數字信號的同步分類；提出了一種基於調制方式盲檢測的自適應接收機結構，把調制方式盲檢測，信噪比估計和同步解調聯合起來進行，實現調制方式隨通道質量而自適應變化的信號的正確接收。 -
Firstly, we estimate the variance and the mean of each cell with maximum likelihood ; secondly, we identify the important dispersion effects based on least squares analysis of the logarithm of within - replication variance ; last, we identify the important location effects based on weighted least squares analysis of the mean of each cell. a simulation study also demonstrates its superiority over some existing methods. an experiment for the robust design of thermostat is used to illustrate the method
本文對帶有右截尾數據的有重復因子試驗，提出了另一種分析位置效應和散度效應的方法：首先，在每一個試驗點，對重復試驗觀察值用極大似然法估計出均值和方差；其次，用每個試驗點方差估計值的對數作為響應變量與各因子建立回歸模型，鑒別出顯著的散度效應；之後，採用加權最小二乘法鑒別出比較顯著的位置效應。 -
Since we use cross correlation match based on small images to estimate the initial value, this algorithm is robust and it also has been used in the advr system
因為初始參數估計採用基於小圖象的相關匹配方法，所以演算法是魯棒的，個會出現大的誤差。本演算法己用於我們開發的advr實用系統之。 -
For the image sequences super - resolution, we develop a new motion estimation algorithm in image sequences. instead of using only two frames from the sequence, the new algorithm uses the whole sequence to estimate the motion vector of each frame, and is more accurate and robust than the former classical motion estimation algorithms. the algorithm also provides a reliability measure of the estimated result, which was introduced into the super - resolution image reconstruction to overcome the influence of the estimation error
在光學圖像序列超解析度方面，提出了融合多次估計的圖像序列運動估計方法，將圖像序列作為一個整體來計算每一幀的運動矢量，克服了以往的運動估計中只利用兩幀圖像的信息的局限，提高了運動估計的準確性和穩健性；給出了運動估計的置信度度量，並將其引入到圖像恢復演算法中，進一步克服了運動估計誤差的影響。
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