自适应算法的性能直接影响着回波消除器的效果。
The performance of the adaptive algorithm can directly affect the effect of the echo canceller.
公开一种具有回波消除器(20)的通信系统(10)。
A communication system (10) having an echo canceller (20) is disclosed.
因此，回波消除技术也就成为世界各大通讯公司竞争的热点技术之一。
So acoustic echo cancellation (AEC) technique has become a hot issue of competition in the famous communication company all over the world.
本论文主要研究自适应回波消除器，包括电回波消除器和声回波消除器两个方面。
This paper is focused on the adaptive echo canceller, which includes the electric echo canceller and the acoustic echo canceller.
这种滤波器适用于ISDN U—接口全双工传输系统中作为自适应回波消除器。
The new adaptive filter can be used as an echo canceller in ISDN U-interface full-duplex transmission system.
本论文主要研究了如何降低高阶自适应滤波器算法的计算复杂度及其在回波消除器中的应用。
The dissertation is focused on the research of reducing the computational complexity of large adaptive filters and their applications in echo cancellation.
第四章结合回波消除器的实现，研究了加快收敛的实用方法和减少回波消除器计算量的措施。
Then according to the implementation of the echo canceller, we discuss the applied methods to improve the convergence speed and reduce the computation complexity.
当新算法应用于多路回波消除时具有很高的收敛速度和收敛精度，取得了较好的回波消除效果。
It has faster convergence speed and more accuracy when applied to stereo acoustic echo cancellation because the correlation between the transformed signals is reduced.
非线性预处理是解决多通路回波消除中因输入信号间的强相关性而引起的滤波器不收敛的有效方法。
In the multi-channel echo cancellation, the nonlinear pre-processing is always used to overcome the non-convergence of the filter caused by the strong correlation of input signals.
多路回波消除问题的本质难点是由于多路输入信号之间的强相关性而导致的自适应滤波器解不唯一的问题。
Multi channel acoustic echo cancellation (AEC) systems suffer from the non uniqueness problem of the adaptive identification solution because of the correlation of the input signals.
DSP处理器完成语音处理的部分，包含了语音压缩、回波消除、拨号音的产生、语音打包等等，这些基本上都属于信号处理的范畴。
DSP performs voice process part, including voice compression, echo cancellation, tone activity detection, tone detection and generation, voice packet, these are signal process scope.
回波消除中的自适应滤波研究结果表明：（1）由于受到硬件和自适应算法本身的制约，要从根本上提高回波消除中自适应滤波效果，选用新的硬件和新的算法是重要途径。
The results show that: (1) In order to improve the effect of adaptive filtering in acoustic echo canceling, the important path is to adopt new hardware and new algorithm.
医学超声多普勒系统的高通滤波器在消除血管壁搏动带来的回波干扰时，也滤除了低速血流信息。
In medical Doppler ultrasound systems, a high-pass filter is usually employed to remove wall clutter components which may also remove the information of the low velocity blood flow.
自聚焦的目的是从雷达回波中消除目标径向运动的影响，只保留步进频率的影响，而后者是合成hrr能力的基础。
The purpose of autofocusing is to remove the radial motion effect of the target from radar echoes, and only reserve the stepped frequency effect which is the basis of synthetic HRR capability.
消除侧音采用了回波相消技术。
ECH (Echo Canceller Hybrid System) is used to remove sidetones.
消除侧音采用了回波相消技术。
ECH (Echo Canceller Hybrid System) is used to remove sidetones.
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