欠旋 的英文怎麼說
中文拼音 [qiànxuán]
欠旋
英文
underwinding-
Its breathtaking physical beauty makes it a place where often it s enough just to wander and watch the world go by " the sort of town ", wrote jan morris, " nearly everyone would want to live in.
有人把這個老城區翻譯成"煤氣鎮" ，是欠妥的，因為gastown是因它的設計師gassy jack而得名。緊挨著gastown ， 1986年矗立起一座帶有頂樓旋轉餐廳的大廈。The main contents of this thesis include : ( 1 ) summarize and analysis of the theories on vibration transmission through rolling element bearings ( 2 ) based on the threshold setting and signal ’ s statistical approach, a method for solving the problems of denoise was developed ( 3 ) using sparsity and clustering, the method and hypotheses for underdetermined blind source separation was studied ( 4 ) the method based on potential function clustering was given for underdetermined blind source separation of noisy signals based on the assumption that the input distribution is sparse and the mixture procedure is linear, the attenuation matrix and the delay matrix were estimated by clustering. the approach was experimentally illustrated for the case of m = 2. the separation of the signals from bearing test bed proved that the given methods are available and reliable
在需求分析和研究現狀分析的基礎上，本論文針對如下內容進行了重點研究: （ 1 ）以滾動軸承為例，對旋轉機械振動信號的傳輸進行了歸納分析; （ 2 ）通過設定某一門限並研究信號間的統計特性，研究了旋轉機械振動信號的盲源分離過程中噪聲消減策略; （ 3 ）應用稀疏信號分析和聚類分析方法，對盲源分離中欠確定問題的假設條件進行探討並對分離方法進行了分析; （ 4 ）採用基於勢函數聚類分析的方法，研究了欠確定前提下含噪聲測量過程中信號盲源分離方法。Based on these conditions, this thesis describes the methods for the blind source separation of noisy harmonic signals from rotating machine when the underlying system is underdetermined ( i. e. separation of n sources from m mixtures, when m < n )
本論文主要以「滾動軸承-轉子」系統為對象，研究存在噪聲情況下，當測試傳感器的數量少於信號源的數量（欠確定）時，旋轉機械振動信號的盲源分離問題。
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