ill-conditioning 中文意思是什麼

ill-conditioning 解釋
病態的
  • ill : adj （worse; worst ）1 〈用作表語〉有病的。 ★英國此義作修飾語時是用 sick 美國無論作表語或作修飾語...
  • conditioning : n. 1. （商品的）檢驗。2. （空氣、濕度等）調節。3. 【冶金】整修。4. 【心理學】條件作用。
  1. And then it emphatically discusses and investigates some problems concerning the mechanism analysis, the diagnostics, measurement and the processing of the ill - conditioning adjustment system. to weaken and overcome the ill effects, some methods and algorithms are suggested and illustrated. the concept of multicollinearity is put forward with variant and data column, respectively

    本文在較系統地回顧病態性研究的歷史及研究現狀的基礎上，重點對病態性問題的機理分析、病態性的診斷與度量、病態性的削弱和克服等幾個方面進行了探討和研究，提出了處理病態性的一些方法及相應演算法。
  2. As we know, the ill - conditioning problem is present in data processing of geodesy networks adjustment, gps ( global positioning system ) fast orientation, geodesy inversion and distortional inspecting networks. moreover, its damage is serious

    病態性在常規大地測量網平差、 gps快速定位、大地測量反演以及變形監測網的數據處理中是大量存在的，其危害性十分嚴重。
  3. Generally, the ill - conditioning problem not only exists in global positioning system ( gps ) data processing, surveying adjustment, observation deformation analysis and geodesy inversion, etc, but also its ill effects are very serious

    在gps數據處理、工程式控制制網平差、形變觀測分析、大地測量反演等測量數據處理領域，系統的病態性問題是常見的，並且病態性的危害作用非常嚴重。
  4. But when sampling rate is high, most traditional digital signal processing and control algorithms are inherently ill - conditioned. considerable progress has been made by the use of delta operator on ameliorating ill - conditioning problems

    研究結果表明，當采樣頻率很高時，傳統的信號處理和控制方法存在著不可避免的缺陷，而採用delta運算元描述代替移位運算元描述方法可以適當地改善這些缺陷。
  5. In this thesis, the origin, definition, and dependence of the solution - uniqueness of the inverse problem and ill - conditioning are discussed first

    因此，本文首先從反問題的起源和定義入手，然後著重分析研究了反問題解答的適定性問題。
  6. If the ill - conditioning is really existence in adjustment model, we must take measures to remove or weaken its influence in order to gain good precisions of parameters estimator and adjustment production

    當確知測量平差模型存在病態性時，必須設法消除或減弱病態性的影響，以提高參數估計和平差成果的精度。
  7. As we know, there exist some defects in solving normal equation system. in order to overcome the shortcomings, the singular - value decomposition method and its applications in direct solving the ill - conditioning observation equation are studied

    最後針對法方程解算方法存在的缺點，主要研究了矩陣的奇異值分解技術在直接解算病態觀測方程中的應用。
  8. In order to combat the influences of both outlier and ill - conditioning on geodetic adjustments, a new robust - biased estimation method is proposed by combining quasi - accurate detection ( quad ) of gross error and biased estimation

    針對粗差和病態性同時存在問題，把擬準檢定法的優點和有偏估計的優點結合在一起，提出了基於擬準檢定的抗差化有偏估計。
  9. A numerical example illustrates that the new robust - biased estimation method not only can resist the bad influence of outlier and effectively overcome the difficulty caused by ill - conditioning simultaneously, but also is far more accurate than ls estimation, biased estimation, robust estimation and generalized shrunken type - robust estimation

    通過數值實驗說明了基於擬準檢定的抗差化有偏估計確實是一種很好的估計，對消除粗差和病態性的不良影響非常有效。
  10. In order to get this, some useful explorations on how to analysis and solve the problem of the ill - conditioning have been made and several biased estimators have been put forward. in fact, analyzing the essence, overcoming the effect of ill - conditioning and obtaining more accurate and stable parameters estimator is an new task in gps surveying data processing, which have been determined as an important studying field in contemporary surveying error theory and engineering data processing by the international association of geodesy ( iag )

    事實上，分析測量平差系統病態性的實質、克服或減弱測量平差系統病態性的影響、採用有偏估計等方法提高參數估計和平差成果的精度，是當前gps等重大測量工程數據處理中所面臨的一個重要課題，它已被國際大地測量協會（ iag ）確立為現代測量誤差理論及數據處理研究中的一項重要內容。
  11. How to analyze the essence, overcome the effect of ill conditioning and obtain more accurate and stable estimation of the unknown parameters are very important in many fields, such as gps surveying data processing, and have been determined as an important studying field in contemporary surveying error theory and engineering data processing by the international association of geodesy ( 1ag ). the dissertation begins with review of the main history of ill conditioning research

    如何針對測量實際，分析測量平差系統病態性的實質、克服或減弱測量平差系統病態性的影響、取得更為準確的參數估值和可靠的平差成果，是當前gps等重大測量工程數據處理中所面臨的一個重要課題，它已被國際大地測量協會（ iag ）確立為現代測量誤差理論及數據處理研究中的一項重要內容。
  12. From the computational perspective, we can avoid to solve linear systems often suffering from ill conditioning, which was needed in former fractal approximation techniques

    從計算前景看這避免了處理在以前的分形逼近方法中需要處理的病態線形系統。
  13. Based on the singular - value decomposition method, several schemes to readjust the singular value of design matrix are proponed through perturbation analysis, and a simulated example is studied for illustrating these schemes can overcome the ill effect when there exist ill conditioning among the columns of the design matrix. the problem of selecting the biased parameter is studied in every scheme

    通過對觀測方程進行擾動分析，基二奇異值分解技術，提出了若干種修正奇異值的方案，討論了奇異值修正方案中偏參數的選取問題，並且結合模擬算例對這些方案在克服設計陣的病態性影響方面的作用進行了研究。
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