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METHOD AND DEVICE FOR INCREASING THE PERFORMANCE OF AN ADAPTIVE FILTER BY MEANS OF NON-HARMFUL INFORMATION
METHOD AND DEVICE FOR INCREASING THE PERFORMANCE OF AN ADAPTIVE FILTER BY MEANS OF NON-HARMFUL INFORMATION
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机译:通过非有害信息手段提高自适应滤波器性能的方法和装置
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摘要
Adaptive filtering algorithm training signals incorporate adaptation-enhancing signals having properties, such as spectral whiteness and rapidly decaying auto-correlation between samples, which allow the adaptive filtering algorithms to converge more quickly as compared to conventional algorithms. Exemplary adaptation-enhancing signals are incorporated such that the training signals are not perceptibly altered as compared to conventional training signals. For example, in a hands-free telephony application, an adaptation-enhancing signal according to the invention is dynamically tailored so that it is masked by a loudspeaker signal (the conventional training signal) and is thus inaudible to hands-free telephone users.
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