Please use this identifier to cite or link to this item: http://hdl.handle.net/10525/809

 Title: Signal Processing under Active Monitoring Authors: Mostovyi, Oleksii Keywords: Mathematical ModellingActive MonitoringFrequency and Phase Fluctuation Issue Date: 2005 Publisher: Institute of Information Theories and Applications FOI ITHEA Abstract: This paper describes a method of signal preprocessing under active monitoring. Suppose we want to solve the inverse problem of getting the response of a medium to one powerful signal, which is equivalent to obtaining the transmission function of the medium, but do not have an opportunity to conduct such an experiment (it might be too expensive or harmful for the environment). Practically the problem can be reduced to obtaining the transmission function of the medium. In this case we can conduct a series of experiments of relatively low power and superpose the response signals. However, this method is conjugated with considerable loss of information (especially in the high frequency domain) due to fluctuations of the phase, the frequency and the starting time of each individual experiment. The preprocessing technique presented in this paper allows us to substantially restore the response of the medium and consequently to find a better estimate for the transmission function. This technique is based on expanding the initial signal into the system of orthogonal functions. URI: http://hdl.handle.net/10525/809 ISSN: 1313-0463 Appears in Collections: Volume 12 Number 3

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