有峰函數 的英文怎麼說

中文拼音 [yǒufēnghánshǔ]
有峰函數 英文
peaking function
  • 有 : 有副詞[書面語] （表示整數之外再加零數）: 30 有 5 thirty-five; 10 有 5年 fifteen years
  • 峰 : Ⅰ名詞1. （山的突出的尖頂） peak; summit 2. （形狀像山峰的事物） peak-like thing Ⅱ量詞（用於駱駝）
  • 函 : 名詞1. [書面語] （匣; 封套） case; envelope 2. （信件） letter 3. （姓氏） a surname
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 函數 : [數學] function函數計算機 function computer; 函數計算器 function calculator; 函數運算 functional operation
  1. In the terms of interpolation, the image reconstructed from nearest interpolation or linear interpolation has good edge but serious noise ; reconstruction from 4 * 4cubic interpolation or three b - spline or three - order lagrange interpolations has better local character. 2 x 2cubic interpolations which has both better edge and local character is the ideal interpolation, the following is the basic principle during reconstruction : ( 1 ) the more width of interpolation, the more number of summation and the more order of interpolation polynomial, the higher of density resolution ; ( 2 ) the more of interpolation polynomial and width of interpolation, the more of reconstruction time simultaneously, aimed at eliminating the effects of noise contained in projection data, in this paper, author analysis cause and effects of common artifacts. importantly, discusses convolution back - projection reconstruction algorithm with a shift axis of rotation has been derived for correcting images that acquired with a divergence axis of rotation using the fan beam geometry with an angle - equaled detector

    在ct圖像重建時，選擇有限帶寬窗有較好的空間解析度，三角形窗有較好的密度解析度，選擇餘弦窗則使得空間解析度與密度解析度的折衷；從窗函數的頻譜角度來講，可以用於圖像重建的一個良好的卷積窗函數應該具備以下條件： （ ? ）小的3db帶寬b ，即最小的主瓣寬度； （ ? ）最小的旁瓣最大峰值a ； （ ? ）最大的旁瓣峰值衰減速度d ；就內插函數而言，臨近點內插與線性內插重建圖像噪聲大，但有較好的邊緣與細節； 4 4三次內插、三次b -樣條與四次拉格朗日多項式內插圖像平滑，局部特性較好。
  2. The complexities of modern engineering optimization problems are their nonlinearity and multi - peak behaviors. they are so complicated that in some cases it is hard / impossible to describe their mathematical functions

    現代工程優化問題的復雜性表現在它的非線性和多峰值性，以至於有時無法找出可用於描述它的顯函數。
  3. In harnessed watershed, a is smaller and b is bigger, but they are contrary in no - harnessed watershed. the flood peak volume modulus and sediment transport modulus is also power function relationship. but parameter a and b is different largely in different watershed and the relativity is not well than relationship between runoff depth and sediment transport modulus

    參數a 、 b可以反映流域有無治理的差異，參數a在有治理或部分治理的流域內均小於無治理流域；參數b在有治理流域內則較無治理流域偏大；流域次降雨洪峰流量模數與輸沙模數也為冪函數關系，但參數a 、 b在不同流域之間差別較大，其相關性不如徑流深與輸沙模數關系好。
  4. In this paper, we propose an improved evolutionary algorithm combining diversity maintaining mechanism and accelerating operators, which focuses on the contradiction between the maintenance of population diversity and search efficiency in solving multimodal function global optimization problem on a bounded area

    摘要針對演化演算法求解有界區域上的多峰函數全局優化問題中，保持種群多樣性和搜索效率的矛盾，提出了一種結合了多樣性維持機制和加速運算元的改進演化演算法並對演算法作了收斂性分析。
  5. Through the i 、 q component of ipix radar sea clutter data " s histogram analyses and by skewness and kurtosis computed, it is been shown that sea clutter amplitude is not rayleigh distribution ; through the comparison of amplitude histogram and distributed models with the same parameters, it is been shown that hh polarization clutter is lognormal distribution, whereas vv polarization is k - distribution ; at the same time the correlation function and power spectrum density are been analyzed, at last the correlation compound k - distribution stochastic sequences whose covariance matrix is been given are been generated through sirp algorithm

    文中先介紹了海雜波幅度的有關模型，通過對ipix雷達海雜波數據的i 、 q分量的直方圖以及傾斜度和峰度進行了分析和計算，證明了海雜波幅度不服從瑞利分佈;使用幅度直方圖和相同參數下的各種分佈模型進行比較，得出hh極化符合對數正態分佈，而vv極化服從k -分佈的結論;同時對海雜波的相關函數和功率譜進行了分析，最後使用sirp演算法產生了給定協方差矩陣的相關復合k -分佈隨機序列。
  6. In the analysis process, the six main peaks in 88 - 100 kev region, including the y peaks of 234th, the k peaks of th and the k peaks of u, are chosen. the smoothly joined gaussian function and low energy exponential tail is taken as peak shape function and quadratic polynomial is taken as background function. the two functions are fitted to gether to calculate the peak area

    在分析過程中，選擇了88 - 100kev能區的~ （ 234 ） th的射線峰， th的k _射線峰以及u的k _射線峰共六個主要能峰，通過採用高斯函數和低能指數尾部光滑聯接的峰形函數和二次多項式本底函數一起擬合，來求出峰面積；而該能區所有能峰的探測效率可以認為是近似相等的，由此得到鈾富集度。
  7. The results of simulation show that the hierarchical optimization functions have stronger deceptive so that the algorithms be pendulous among local optimizations. however the evolutionary mechanism based - on graph models being discussed displays its favorable characteristic of intelligent optimizing, such as to overcome deceptive and explore inherent laws on search space. ( 5 ) a method for designing a model framework of situation awareness for ucays based on object - oriented bayesian networks is presented

    模擬結果表明，本文所研究的層次化函數確實具有迷惑性，引導演算法在峰值之間飄忽不定，但即使如此，本文提出的基於圖形模型的智能優化機制依然表現出具有克服問題欺騙性，可探索問題內在規律和智能尋優的良好特性。
  8. L. the paper studies the theory to detect damage of bridges, and compares many sensitive parameters to detect bridge damage through correlative literature all over the world, finally concludes it suitable that bridge damage is detected by strain mode parameters. the strain mode parameters satisfy four foundstiona. l conditions as follows : ? hey are sensitive to sectional damage and they are monotone function of structure damage. @ they have determinate location coordinate

    論文通過對國內外橋梁損傷檢測方面的文獻資料研究，探討了識別橋梁損傷的基本理論，比較了多種結構損傷敏感參數識別橋梁損傷的優缺點，最後確定用應變模態參數識別橋梁結構損傷較為合適，應變模態是對損傷敏感的參數，滿足四個基本條件：對局部損傷敏感，且為結構損傷的單調函數；具有明確的位置坐標；在損傷位置，應變模態差曲線出現明顯的峰值變化；在非損傷位置，應變模態差曲線的變化幅度小於預先設定的閾值。
  9. An improved evolutionary algorithm for solving multimodal function global optimization problem on a bounded area

    有界區域上多峰函數全局優化問題的改進演化演算法
  10. As for the m - ary psk signals, the differential phase peaks at the transients are used. the pdf ( probability density function ) of the differential phase peaks of m - ary psk are the mean of m - 1 pdfs of m - 1 phase peaks

    由於進制的數字調相信號每個子碼間具有個相位突變，其相位突變的峰值滿足一個概率密度為的分佈，若信號為元psk信號，則相位突變峰值的概率密度函數就是個概率密度之和的平均。
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