高次奇異性 的英文怎麼說

中文拼音 [gāocìjīyìxìng]
高次奇異性 英文
higher singularity
  • 高 : Ⅰ形容詞1 （從下向上距離大; 離地面遠） tall; high 2 （在一般標準或平均程度之上; 等級在上的） above...
  • 次 : Ⅰ名詞1 （次序; 等第） order; sequence 2 [書面語] （出外遠行時停留的處所） stopping place on a jou...
  • 奇 : 奇Ⅰ形容詞1 （罕見的; 特殊的; 非常的） strange; queer; rare; uncommon; unusual 2 （出人意料的; 令...
  • 異 : 形容詞1 （有分別; 不相同） different 2 （奇異; 特別） strange; unusual; extraordinary 3 （另外的;...
  • 性 : Ⅰ名詞1 （性格） nature; character; disposition 2 （性能; 性質） property; quality 3 （性別） sex ...
  • 高次 : high order
  1. In this paper, the main research works are as follows : 1 ) survey and analysis previous work in auv navigation and summarize : as the cumulate error, the dead - reckoning and inertial navigation systems ca n ' t be used without other modified system ; the acoustic navigation system is used only in small range, and is very expensive. 2 ) two important approaches in geophysical navigation techniques are summarized, one is terrain contour based navigation, this approach is investigated keystone today ; the other is image based navigation, due to no perfect image sensors and image seabed map, this approach has seldom been practised. 3 ) two important terrain contour based navigation algorithms has been applied to auv, one is match algorithm - based terrain contour match ( tercom ) ; the other is kalman filter - based sandia inertia terrain - aided navigation ( sitan )

    主要研究內容包括：一、總結分析了當前水下導航的常用方法和不足之處，指出基於航位推算的導航方法，存在著最大的問題就是導航誤差的積累問題，如果沒有修正系統，這種方法很難滿足使用要求；其次指出基於聲學的導航方法，造價昂貴，導航范圍有限，難以滿足自主水下航行器大范圍導航的需求；二、總結了當前水下地形輔助導航的主要技術路線，一是基於地形高程的匹配方法，這是當前研究的重點；二是基於地形圖像的匹配方法，由於缺乏良好的圖像傳感器，和可用的海底圖像地圖，目前這種方法還有待研究發展；三、將兩種地形高程匹配的常用方法應用到自主水下航行器上：以相關演算法為前提的地形輪廓匹配（ tercom ）方法和以卡爾曼濾波為基礎的桑迪亞慣性地形輔助導航（ sitan ）方法，前者演算法簡單可靠，但是導航精度不高，後者雖然精度比較高，但存在著演算法較為復雜、有可能發散和出現奇異值等問題。
  2. Under calculating background, we research the uniformity half space and multi - layers models, discuss the effect on studied background results to abnormity and overlapping field

    為了提高計算精度和計算速度以及避免由源奇異性引起的差分計算復雜性，計算時將電位分成二次異常電位和背景電位2部分。
  3. It is especially attractive for the downlinks and suppressing intercell mai. when multiuser detector is adapted in blind mode, it usually adopts eignvalue decomposition or singularvalue decomposition of received sample correlation matrix and tracking alrithgms, which result in high computational complexity. at the same time, approximation computation in tracking alrithgms also result in slow convergence

    為實現盲自適應檢測，通常採用對接收信號樣本矩陣進行特徵值分解（ evd ）或奇異值分解（ svd ）后進行跟蹤，由此帶來的子空間秩跟蹤使得實現復雜度很高；另一方面，在跟蹤演算法中考慮一些實際情況而作出近似處理，從而引起誤差積累和正交性誤差，導致每次跟蹤開始階段跟蹤速度變慢。
  4. Band selection methods are more proper for hardware realization and the last method is chosen for dimensionality reduction of hyperspectral image processed by the hardware platform. secondly, rx, gmrf and sem, three representational algorithms of anomaly detection are studied

    其次，研究了具有代表性的三種奇異檢測演算法: rx演算法、基於高斯馬爾可夫隨機場模型（ gmrf ）的檢測演算法和基於隨機最大期望（ sem ）分類的檢測演算法。
  5. In this dissertation, the numerical computation for the acoustic radiation problem ( arp ) is studied deeply and systematically in the theory, method and the application technique, based on analyzing the situation of the home and abroad on the numerical computation for the acoustic radiation problem. the calculation formulas of the boundary element method ( bem ) for the exterior acoustic radiation problem in the full - space and half - space are deduced, based on the wave propagation theorem ; the arising of the non - unique solutions, which is associated with the application of the boundary integral equation ( bie ) in acoustic radiation problem, is analyzed and proofed ; the improved combined helmholtz integral equation formulation ( ichief ) is presented to overcome the non - uniqueness problem more effectively and reliably ; the determination of the singular integral coefficients on various occasions is analyzed ; the properties and treatments of the singular integrals with different orders axe studied ; the computation program of the cubic spline ichief is developed and its ability to overcome the non - uniqueness problem and feasibility to discrete the surface coarsely with the sufficient calculation precision are examined through examples

    第二章在聲波動理論基礎上，詳細地推導出對應于無限域和半無限域的外部振動聲輻射問題的邊界積分方程計算公式；根據fredholm積分理論，對利用邊界積分方程計算振動聲輻射問題過程中解的非唯一性的產生進行了分析和證明；改進了chief法以提高其克服解的非唯一性的有效性和可靠性；對不同條件下奇性系數的計算、強奇性積分的收斂性及其在變量替換時與普通積分的差異性、不同階奇性積分的計算、數值求積分等進行了研究；開發了三次樣條改進chief法計算軟體，並通過算例考核了該方法在特徵波數處克服解的非唯一性的有效性和在保證計算精度的前提下實現剖分粗化以提高計算效率的可行性。
  6. Chapter two focuses on the basic characteristics of the beauty of mathematics and its gradation which lays the theoretical foundation for the beauty of mathematics. the basic characteristics can be summarized as conciseness, symmetry, uniqueness and unity and the connotation, the manifestation and the ideology of each characteristic are analyzed in detail. in addition, the beauty of mathematics is divided into three levels in the sequence from exterior to interior and from junior to senior, i. e., external formal beauty, internal rational beauty and creative beauty

    第一部分包括前二章：第一章探究了美與數學美的概念，提出了「美和數學美」的定義，分析了其實質與內涵；第二章著重論述了數學美的基本特徵及其層次劃分，將數學美的基本特徵概括為簡潔性、對稱性、統一性和奇異性，詳細分析了每個特徵的內涵和表現形式，最後從外到內、低到高將數學美劃分為外在形式美、內在理性美和創造美三個層次，奠定了數學美的理論基礎。
  7. A class of generalized mixed quasi - equilibrium problem with trifunction

    一類高階次線性奇異邊值問題的正解
  8. As further expansion of the cubic a - b - spline interpolation curves, in order to raise the continuity of the curves even, the author has defined the blending functions of corresponding degrees, constructed the adjustable interpolation curves of degree 5 and degree 6 with polynomial blending functions of degree 5 ( 3 - b ) and degree 6 ( 3 - b ) respectively. they are c3 and c4 continuous separately

    作為三次- b樣條插值曲線的進一步擴展，也為了提高插值曲線的連續性，作者定義了相應次數的奇異調配函數，同時利用三b五次、三b六次調配函數分別構造了五次和六次參數可調的插值曲線，它們分別是c ~ 3和c ~ 4連續的。
  9. Fault feature in stator current is extracted by singularity detection of signals with half - complex wavelet transform and it can be helpful to the real - time detection of motor fault. harmonics caused by the fault of motor is detected accurately with real - time harmonics cancellation method. steady state current and starting current in stator are analyzed with real - time harmonics cancellation method and the improved harmonic wavelet separately, after that the feature component of rotor fault can be detected successfully

    採用半復小波變換對電機定子電流進行奇異性檢測，提取故障突變信號，有助於電機故障的實時診斷；通過實時諧波消去法檢測定子故障引起的高次諧波電流；採用改進的實時諧波消去法精確提取電機穩態電流中的轉子斷條故障特徵分量；為了進一步提高轉子斷條故障診斷精度，利用改進的諧波小波對電機起動電流進行時頻分析，提取轉子斷條故障特徵。
分享友人
分享到 Line

分享到臉書