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Power Spectrum Identification for Adaptive Systems

机译:自适应系统的功率谱识别

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摘要

This paper describes a method for identifying the parameters of a class of power spectra. In contrast to conventional methods of spectral analysis, the method assumes a particular form for the power spectrum and gives direct estimates of unknown parameters. Thus the method is faster than ordinary spectral analysis and can be easily implemented by a digital computer for use in an adaptive loop. The derivation of the estimates assumes that the power spectrum has no zeros, and is based on well-known results in the theory of autoregressive schemes. Some ways of extending the results to the case where zeros are present in the spectrum are suggested. The method can also be used as a prewhitening technique in conjunction with ordinary spectral analysis.
机译:本文介绍了一种识别一类功率谱参数的方法。与常规的频谱分析方法相比,该方法采用特定形式的功率谱,并直接估算未知参数。因此,该方法比普通的频谱分析更快,并且可以由用于自适应环路的数字计算机容易地实现。估计的推导假定功率谱不为零,并且基于自回归方案理论中的众所周知的结果。建议将结果扩展到频谱中存在零的情况的一些方法。该方法还可以与常规光谱分析一起用作预增白技术。

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