signal dependent noise 中文意思是什麼

signal dependent noise 解釋
信號相關噪聲
  • signal : n 1 信號,暗號;信號器。2 動機,導火線 (for)。3 預兆,徵象。adj 1 暗號的,作信號用的。2 顯著的...
  • dependent : adj. 1. 依靠的,依賴的。2. 從屬的,隸屬的,【語法】從屬的。3. 由…決定的。4. 下垂的,懸吊的。n. 1. 受贍養者,靠人生活的人。2. 扈從,侍從。3. 依存[從屬]物。
  • noise : n 1 聲音,聲響。2 叫喊;嘈雜聲,噪音;喧鬧聲;吵鬧,騷動,騷擾。3 〈古語〉謠言,風聲。4 〈美國〉...
  1. Because the adaptive algorithm of conventional adaptive noise canceller is the least mean squares ( lms ), and the convergence rate of lms is heavily dependent on the eigenvalue distribution of the autocorrelation matrix of the input signal, thus lms converges at unacceptably low rates when the input signal is colored noise or speech

    由於傳統自適應噪聲抵消系統( anc )自適應演算法主要採用lms演算法,而lms演算法收斂速度依賴于輸入信號自相關矩陣特徵值的分散程度。因此,當輸入信號是語音或有色噪聲時, lms的收斂速度很慢。
  2. There are difficulties in noisy speech recognition, especially low signal - to - noise rations are more difficult. this paper describes briefly six methods for speaker - dependent noisy speech recognition isolated words. they are lpc prediction error method, one - side auto - correlation sequence lpc, acoustic front end processing, canonical correlation based on compensation method, combination of features method and increase of poles method. the experimental results show that all the six techniques can improve effectively noisy speech recognition, and the best noisy speech recognition rate is above 80 % when snr 0db

    它們是:線性預測誤差法,單邊自相關線性預測法,語音前端聲學處理法,正則相關分析的譜變換補償方法,特徵綜合法和同模極點增加法。實驗結果表明,這6種方法都有效地提高了噪聲環境中語音識別率,其中較好的方法在強噪聲環境中信噪比為0db的語音識別率達到80 %以上,為信噪比較低的噪聲環境中自動語音識別展現了美好前景。
  3. In order to understand the nature of the ecologist ' s investigation , we may think of the density - dependent effects on growth parameters as the “ signal ” ecologists are trying to isolate andinterpret , one that tends to make the population increase from relatively low values or decrease from relatively high ones , while the density - independent effects act to produce “ noise ” in the population dynamics

    為了能理解生態學家們所從事的研究的性質,我們可以把那些作用於增長參數的密度依賴效應視作生態學家們力圖將其分離並予以解釋的「信號」 ,正是這一信號傾向于使種群從相對較低的數值遞增,或從相對較高的數值遞減;而與此同時,那些密度獨立效應起到的作用則構成了種群動態變化中的「噪音」 。
  4. A process for speaker - dependent and isolated - word speech recognition system is presented starting from preprocessing i. e. digital sampling, noise filtering, windowing and so on. it is followed by endpoint detection and pick - up parameters of speech signal. methods for speech recognition are discussed as well

    本文循著一個特定人孤立詞語音識別系統的處理過程,從信號前端處理(數字采樣、預加重濾波、加窗分幀)開始,分別介紹了語音信號的端點檢測、特徵參數提取以及孤立詞識別方法,並對每個步驟可用的幾種方法在實驗基礎上進行了分析對比。
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