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首页> 外文期刊>Pattern recognition and image analysis: advances in mathematical theory and applications in the USSR >Some Aspects of Estimating the Detection Rateof a Periodic Signal in Noisy Dataand the Time Position of Its Components
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Some Aspects of Estimating the Detection Rateof a Periodic Signal in Noisy Dataand the Time Position of Its Components

机译：估计噪声数据中周期信号的检出率及其分量的时间位置的某些方面

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摘要

Processing and analysis of periodic signals (including noisy ones) are considered to estimate thetime position of the corresponding components including the case of frequency modulation. It is proposed toemploy four steps of signal processing and analysis: weighted order statistic (WOS) filters in order to enhancethe quality of both the signal itself and its components of special interest; dispersion estimation on a certainsliding basis; analysis of such an estimate as a two-dimensional black-and-white image in order to list theconnected sets of nonempty clusters; and, finally, behavior analysis of cluster families in order to calculate thenecessary estimates. A method is considered for the recognition of characteristic features of cluster families,and on its basis a technique is suggested for estimating the initial time for a signal to come into existence (themoment of the arrival of a wave). We give the results of processing and analysis of practical data obtained dur-ing a field trip as a part of active geophysical monitoring.
机译：考虑对周期信号（包括噪声信号）进行处理和分析，以估计相应分量的时间位置（包括频率调制的情况）。提议采​​用信号处理和分析的四个步骤：加权阶数统计（WOS）滤波器，以提高信号本身及其特殊组件的质量;在一定的滑动基础上估计离散度;分析诸如二维黑白图像之类的估计，以便列出非空群集的连接集;最后，对集群族的行为进行分析，以计算出必要的估计值。考虑了一种识别簇族特征的方法，并在此基础上提出了一种估计信号出现的初始时间（波到达的动量）的技术。我们给出了在实地考察过程中获得的实际数据的处理和分析结果，作为主动地球物理监测的一部分。

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