Time delay estimation in room acoustic environments: An overview
Time delay estimation in room acoustic environments: An overview
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DOI：
10.1155/asp/2006/26503
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发表时间：
2006-01-01
期刊：
影响因子：
--
通讯作者：
Huang, Yiteng Arden
中科院分区：
文献类型：
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作者：
Chen, Jingdong;Benesty, Jacob;Huang, Yiteng Arden
时间延迟估计在许多领域（雷达、声纳、地震学、地球物理学、超声波、免提通信等）中一直是具有重要实际意义的研究课题。这是第一阶段，其馈入后续处理块以用于识别、定位和跟踪辐射源。在过去的几十年里，这一领域取得了显着的进步，并将继续取得进展，旨在创造能够容忍噪声和混响的处理器。本文系统地综述了时延估计算法的最新进展，从简单的互相关方法到先进的基于盲信道辨识的技术。我们讨论了每个算法的优点和缺点，并概述了它们的内在关系。我们还提供了实验结果，以说明他们的性能差异，在室内声学环境中，混响和噪声是常见的。版权所有（C）2006 Hindawi Publishing Corporation. All rights reserved.
Time delay estimation has been a research topic of significant practical importance in many fields (radar, sonar, seismology, geophysics, ultrasonics, hands-free communications, etc.). It is a first stage that feeds into subsequent processing blocks for identifying, localizing, and tracking radiating sources. This area has made remarkable advances in the past few decades, and is continuing to progress, with an aim to create processors that are tolerant to both noise and reverberation. This paper presents a systematic overview of the state-of-the-art of time-delay-estimation algorithms ranging from the simple cross-correlation method to the advanced blind channel identification based techniques. We discuss the pros and cons of each individual algorithm, and outline their inherent relationships. We also provide experimental results to illustrate their performance differences in room acoustic environments where reverberation and noise are commonly encountered. Copyright (C) 2006 Hindawi Publishing Corporation. All rights reserved.