nonstationary noise 中文意思是什麼
nonstationary noise
解釋
非穩態噪聲- nonstationary : 不固定的,變的
- 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〉...
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In addition, we proposed the posterior union model ( pum ), which improves over the conditional union model by retaining the advantage of requiring no identity of the noisy components, and by additionally offering a means of optimally estimating the model order, therefore enhancing the capability of the model for dealing with nonstationary noise
最終本文提出了語音增強結合pum模型的一種新的語音抗噪方法，並且基於這種新方法我們從高識別率和低成本較高識別率兩方面出發，構建了改進型ctranc結合pum新模型和改進型重復wiener濾波結合pum新模型。 -
In chapter 3, we discuss the problem of doa estimation in the presence of spatially nonstationary noise fields. an estimate of the colored noise covariance matrix is firstly given. the received data for parameter estimation is then prewhitened using the estimated noise covariance, hence, overcoming the highly biased estimates. finally, adaptive beamforming with the modified weight is also performed. computer simulations show that the proposed method can completely remedy beam distortion. 3
在第三章討論了一種在環境噪聲為白噪聲而陣元噪聲為空間非平穩情況下的doa估計問題，給出了一種有效的估計陣元噪聲功率的方法，進而利用估計的噪聲協方差矩陣進行預處理而實現色噪聲環境下的doa估計，理論分析和模擬結果均表明了本章提出的方法的有效性。
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