precision n. 精密,精確性;嚴格;精密度;【修辭學】精確。 arms of precision 裝有瞄準儀的槍炮。 adj. 精確的,精密的。 precision apparatus 精密儀器。 a precision balance 精密天平。 a precision fire 準確射擊。
In this paper, we study the finite iterated order of growth and the iterated convergence exponent of the zero sequence of nonzero meromorphic solutions of second order homogeneous linear differential equation, and obtain some precision evaluation 摘要研究了二階齊次線性微分方程非零亞純解的迭代級與零點迭代收斂指數(shù),得到了它們的精確估計。
(2 ) model correction and comparison in the process of conversion from zenith day delay to gps water vapor and precision evaluation . saastamoinen ( sa ) model and hopfield ( h ) for dry delay and bevis model for atmospheric weighted temperature are adopted (2)模型訂正與比較在gps水汽反演過程中,一般干延遲和大氣加權(quán)平均溫度的計算是采用“普適性”模型,目前應(yīng)用較多的有saastamoinen(sa)模型、hopfield(h)模型和bevis模型。
Based on the characteristics of information, there are two kinds of consistence test methods : static method and dynamic one . static consistence test method contains rank sum test, mood test, etc . as for the dynamic consistency test methods, the emphasis is focused on spectrum analyses, such as maximum entropy spectrum estimation, etc . in engineering applications, constituting precision evaluation projects of diverse war indexes have been intensively analyzed, all steps of evaluation have been synthetically analyzed and applied to engineering : an integrated evaluation example is provided 驗前信息的一致性檢驗的優(yōu)劣對小樣本下試驗鑒定的影響是很大的,文中根據(jù)驗前信息的特性給出了小樣本靜態(tài)檢驗方法和動態(tài)檢驗方法,靜態(tài)檢驗法有秩和檢驗、mood檢驗法等,動態(tài)檢驗中重點對頻譜檢驗法,如對最大熵譜等作了理論分析。
The thesis mainly recounts the detail questions about bayesian small sample theory and the important applications of the theory in engineering, and gives sufficient analyses and discussion of every step of accomplishing a precision evaluation when using small samples . in the thesis, the following issues are contained, such as how to get and denote the prior information, the consistence test of prior information and test samples of shooting range, the fusion of multi-source information, calculating of posterior probability, estimation with bayesian approach, how to constitute test evaluation project of different performance and calculate the risks of both sides are contained, and at last a kind of applied method to calculate the effectiveness is given 論文主要敘述了有關(guān)bayes小樣本理論的一些具體問題,以及該技術(shù)在工程中的一些關(guān)鍵應(yīng)用,對小樣本條件下精度鑒定的各個環(huán)節(jié)給予較充分的分析和討論,其中包括驗前信息的獲取、表示,驗前信息和靶場試驗樣本的一致性檢驗,多源信息的融合,驗后概率的計算,bayes方法在估計中的應(yīng)用,試驗鑒定方案的制定,對不同戰(zhàn)標的評估方法和風險的計算等,最后對作戰(zhàn)效能的計算給出了一種工程中較實用的方法。