国产bbaaaaa片,成年美女黄网站色视频免费,成年黄大片,а天堂中文最新一区二区三区,成人精品视频一区二区三区尤物

首頁> 外文期刊>Signal Processing, IEEE Transactions on >Analysis of Acoustic Feedback/Echo Cancellation in Multiple-Microphone and Single-Loudspeaker Systems Using a Power Transfer Function Method
【24h】

Analysis of Acoustic Feedback/Echo Cancellation in Multiple-Microphone and Single-Loudspeaker Systems Using a Power Transfer Function Method

機(jī)譯：功率傳遞函數(shù)法分析多麥克風(fēng)和單揚(yáng)聲器系統(tǒng)中的聲學(xué)反饋/回聲消除

獲取原文
獲取原文并翻譯 | 示例
  • 摘要
  • 著錄項(xiàng)
  • 相似文獻(xiàn)
  • 相關(guān)主題

摘要

In this work, we analyze a general multiple-microphone and single-loudspeaker audio processing system, where a multichannel adaptive system is used to cancel the effect of acoustic feedback/echo, and a beamformer processes the feedback/echo canceled signals. We introduce and derive an accurate approximation of a frequency domain measure—the power transfer function—and show how it can be used to predict the convergence rate, system stability bound and the steady-state behavior of the entire cancellation system across frequency and time. We consider three example adaptive algorithms in the cancellation system: the least mean square, normalized least mean square, and the recursive least squares algorithms. Furthermore, we derive expressions to determine the step size parameter in the adaptive algorithms to achieve a desired system behavior, e.g., convergence rate at a specific frequency. Finally, we compare and discuss the performance of all three adaptive algorithms, and we verify the derived expressions through simulation experiments.
機(jī)譯：在這項(xiàng)工作中，我們分析了通用的多麥克風(fēng)和單揚(yáng)聲器音頻處理系統(tǒng)，其中多通道自適應(yīng)系統(tǒng)用于消除聲學(xué)反饋/回聲的影響，而波束形成器則處理反饋/回聲消除的信號(hào)。我們介紹并推導(dǎo)了頻域測度（功率傳遞函數(shù)）的精確近似值，并展示了如何將其用于預(yù)測整個(gè)消除系統(tǒng)在頻率和時(shí)間范圍內(nèi)的收斂速度，系統(tǒng)穩(wěn)定性邊界和穩(wěn)態(tài)行為。我們考慮抵消系統(tǒng)中的三個(gè)示例自適應(yīng)算法：最小均方，歸一化最小均方和遞歸最小二乘算法。此外，我們導(dǎo)出表達(dá)式以確定自適應(yīng)算法中的步長參數(shù)，以實(shí)現(xiàn)所需的系統(tǒng)行為，例如在特定頻率下的收斂速度。最后，我們比較并討論了所有三種自適應(yīng)算法的性能，并通過仿真實(shí)驗(yàn)驗(yàn)證了派生的表達(dá)式。

著錄項(xiàng)

相似文獻(xiàn)

  • 外文文獻(xiàn)
  • 中文文獻(xiàn)
  • 專利
獲取原文

客服郵箱：kefu@zhangqiaokeyan.com

京公網(wǎng)安備：11010802029741號(hào) ICP備案號(hào)：京ICP備15016152號(hào)-6 六維聯(lián)合信息科技 (北京) 有限公司?版權(quán)所有

  • 客服微信

  • 服務(wù)號(hào)