estimation of error 中文意思是什麼

estimation of error 解釋
誤差的估計
  • estimation : n. 1. 估計，評價。2. 預算，預算額；概算。3. 尊重，尊敬。4. 意見，判斷。5. 【化學】估定；測定。
  • of : OF ＝Old French 古法語。
  • error : n. 1. 錯誤；失錯。2. 謬見，誤想；誤信；誤解。3. 罪過。4. 【數學】誤差；【法律】誤審，違法；（棒球中的）錯打。adj. -less 無錯誤的，正確的。
  1. And then facing the problem of the channel estimation of the adaptive modulation system, we conclude out the channel estimation algorithms on maximum likelihood ( ml ) estimation and maximum a posteriori ( map ) estimation under the condition of flat fading channel and selective fading channel in detail. to meet flat fading channel, we simulate the relationship of the ratio between the error covariance in map estimation and ml estimation and pilot symbol message length. the conclusion can be drawn from these results

    接著，對自適應調制系統中的通道估計問題難點，詳細推導了平衰落通道條件下和選擇性衰落通道條件下最大似然（ ml ）估計和最大后驗概率（ map ）估計演算法，針對平衰落通道，我們模擬了map估計和ml估計的方差與導頻符號長度的關系，模擬結果表明，錯誤方差受多譜勒頻率的變化影響最大，並且對實際的自適應調制系統，導頻符號長度的取值超過20個符號長度時， map通道估計明顯優于ml通道估計。
  2. Moreover, when the parameter is chosen in a certain interval, it is proved that the generalized d - gap function g has bounded level sets for the strongly monotone vip. an error bound estimation of the algorithm is obtained, which partially gives an answer to the question raised by yamashita ( 1997 ) et al

    更進一步，當廣義d -間隙函數g _ （ ）中的參數取值于某一區間時，證明了函數g _ （ ）對于強單調變分不等式而言，具有有界的水平集，同時，給出了演算法的一個誤差界估計，它部分回答了yamashita等人提出的一個問題。
  3. During the instantaneous frequency estimation of lfm, there exists some error in the edge, so in the dissertation, a fitting method is proposed to modify it. from the computer simulation, the following result is obtained : for cw, the method based on cwt is most effective, and with the snr rising, the error curve of it is more and more closer to crb. for lfm, the method based on wvd gives the best result, and the effects of cwt and stft are similar for multi - component signal, compared to stft and wvd, cwt is a better choice

    通過模擬發現，在單頻回波的瞬時頻率估計中，基於cwt的方法最為有效，隨著信噪比的提高，其均方誤差曲線越來越接近克拉美?羅界；在線性調頻回波的瞬時頻率估計中， wvd法得到的效果最好，而cwt與stft法的估計效果比較接近；在多分量信號的瞬時頻率估計中，相對于stft和wvd法， cwt法是一個更好的選擇。
  4. The propagation law also exposures that less selection of endmember would lead to blunder model error, but over selection of endmember is still unbiased estimation of abundances

    數值模擬結果表明混合像元分解精度與端元類內變化的方差存在負相關的特點。
  5. These including : based on the reliability checkout of experiment data, the optimum fit of probability model by finite contrast method can be used to avoid type ii error and the estimation of distribution parameter with extended bayesian method to avoid the phenomenon that the results err from matrix owing to the lack of experiment data

    主要做了以下工作：在土工實驗數據進行可靠性檢驗的前提下，用優度檢驗的有限比較法擬合概率模型，可以避免納偽現象的發生：用經驗bayes方法估計分佈參數可以解決由於實驗數據不足而可能導致的估計結果背離母體的現象。
  6. 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。
  7. An algorithm of timing - error estimation of qam signals

    信號定時誤差估計演算法
  8. The equivalence between the mamdani type fuzzy systems using trapezoid or gauss membership functions and the piecewise interpolation functions is demonstrated. and the estimation of the approximation error is given

    對mamdani系統，分析了隸屬函數分別採用梯形和高斯型時一維模糊系統與函數插值的等價性和逼近誤差。
  9. 1550nm is chosen as the work wavelength, cassegrain transmitting - receiving antenna as the optical antenna of the system through the elucidation of how to choose the work wavelength and optical antenna of comm - unication system. the structure and theoretical design parameter of apt sub - system have been presented through the discussion of the optical signal power estimation of apt sub - system, beam divergence angle, pointing error, and error signal extraction. compared with existed optical wireless communication system, the design scheme proves applicable

    通過對通信系統工作波長選擇、光學天線選擇等闡述，選擇了1550nm作為系統工作波長、卡塞格倫（ cassegrain ）收發合一天線作為系統光學天線；通過對apt子系統功率測算、束散角和瞄準誤差、誤差提取信號等的討論，給出了apt子系統結構和理論設計指標，並將其與現有的光無線通信系統進行比較，說明該設計方案是可行的。
  10. The estimation of cloud - cover is mainly affected by the visibility of the day. comparing the calculated results from about 350 images to the observation, the average error is about 10 %

    結果分析表明，雲量的計算結果受能見度影響程度大，晴好天氣下雲量的計算同觀測員記錄比較誤差在10左右。
  11. Lyapunov exponent depict the discrete extent of chaotic dynamic system. there propose an estimation of one step prediction error based on lyapunov exponent, the estimation express the reliability of prediction numerically. at the same time, in order to improve the predictive precision it drew out an error complement methods creatively to correct one step prediction

    Lyapunov指數定量刻畫混沌離散動力系統的平均發散程度，基於lyapunov指數作出了一步預測的誤差估計，以此來定量反映預測的可靠性；根據奇異吸引子流形的性質，創造性的提出殘差補充法，對預測值作出修正以降低誤差，提高預測精確性。
  12. By analyzing the inter - satellite measurement net of walker constellation at some time in geometry and numeric, the correction of system error and random error caused by the change of orbit elements using different type of estimation of inter - satellite measurement net was provided quantitatively

    並通過對walker星座某一時刻的星間觀測網進行幾何分析和數值分析，定量給出了利用不同類型的星間觀測網對軌道根數變化引起的系統誤差和隨機誤差的修正情況。
  13. In this dissertation, some basic investigations on the bem of 3d elastic contact problem have been carried out, which can be listed as follows : at first, an early investigation of authors " group, on direct error estimation of bem solution for elasticity problem, is extended from 2d problem to 3d elastic contact problem. an accurate and efficient algorithm for the determination of boundary displacement, which is continuous with the displacement solution within the domain of an elastic body, is then presented

    本文對三維彈性體接觸問題的邊界元法做了若干應用基礎性研究，其中主要包括以下幾個部分：作者首先將本研究組提出的彈性力學問題邊界元解誤差的直接估計從二維推廣到三維問題，給出了確定與域內解連續的邊界位移的一種精確有效的方法。
  14. The post - processing procedures include sifting, estimation of error rate, reconciliation, confirmation and privacy amplification

    量子密碼傳輸中需要的經典信息包括篩選、誤碼率估計、協調、檢驗和秘密放大。
  15. Strong consistency for the weighted kernel estimation of a regression function under - mixing error condition

    混合誤差下回歸函數加權核估計的強相合性
  16. For completeness of discussion chapter 2 provides fundamental of location estimation and error analysis

    為了論述的完整性，第二章討論無源定位跟蹤的原理、方法及誤差分析。
  17. Some linear approaches reported recently without postprocessing to fir system identification are discussed. this paper improves the question of the promulgation of error due to estimating middle parameter frequently in other related methods, and presents a direct algorithm of estimating parameter without estimating middle coefficient. through proper mathematic means, for example, singular value decomposition ( svd ) or total - least squares solution ( tls ), this algorithm smoothes the noise and improves effectively the estimation performance

    和2階統計量相比，高階統計量不僅能夠有效抑制高斯有色噪聲的影響，而且能夠揭示隨機過程的相位特性，因此，高階統計量是解決非高斯、非最小相位、非因果系統和有色高斯噪聲環境的系統辨識和處理問題的重要分析工具。
  18. The distributions studied are normal distribution, student - t distribution, skewed student - t distribution and general error distribution. besides this, considering the conditional heteroskedasticity of the time serial in financial market, apply the garch model into the estimation of var

    在此基礎上，研究了證券市場上時間序列收益率波動的條件異方差性，考慮中國證券市場的風險特徵，將garch系列模型與var模型相結合，構造了基於不同分佈條件下的var模型。
  19. Intetval estimation of mean square error for linear statistic model

    統計模型中誤差方差的均方誤差的區間估計
  20. A new variable step - size cma blind equalization algorithm is introduced to conquer the defects of cma, in which the step size is controlled by the estimation of error signal ' s autocorrelation

    摘要提出了一種自適應變步長恆模盲均衡演算法，利用剩餘誤差信號的自相關函數估計值作為控制步長的因子來自適應改變步長的大小，克服了恆模演算法存在的固有缺陷。
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