Synthesis of Discrete Time-Varying Null Filters for Frequency-Varying Signals Using the Time-Warping Technique

Dov Wulich; Dov Wulich; Eugene I. Plotkin; M. N.S. Swamy

doi:10.1109/31.56082

Synthesis of Discrete Time-Varying Null Filters for Frequency-Varying Signals Using the Time-Warping Technique

Dov Wulich
, Dov Wulich
, Eugene I. Plotkin
, M. N.S. Swamy

Department of Electrical & Computer Engineering

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

Abstract

Synthesis of two second-order discrete time-varying filters (DTVF), capable of suppressing a sine signal with arbitrary frequency variation, is given. These structures are obtained by using the time-warping concept. Noise analysis is carried out for these two DTVF's and their performance compared. It is shown that for the particular application considered in this paper, the rule of time-dependence of the DTVF (the synchronization), may be effectively obtained by using a phase-locked loop (PIX) system. As an example, the DTVF + PLL system is used for synchronous phase estimation of a sine wave corrupted by a closely spaced FM interference. Simulation results are provided to substantiate the analysis as well as reveal the efficiency of the proposed time-varying system.

Original language	English
Pages (from-to)	977-990
Number of pages	14
Journal	IEEE Transactions on Circuits and Systems
Volume	37
Issue number	8
DOIs	https://doi.org/10.1109/31.56082
State	Published - 1 Jan 1990

ASJC Scopus subject areas

General Engineering

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title = "Synthesis of Discrete Time-Varying Null Filters for Frequency-Varying Signals Using the Time-Warping Technique",

abstract = "Synthesis of two second-order discrete time-varying filters (DTVF), capable of suppressing a sine signal with arbitrary frequency variation, is given. These structures are obtained by using the time-warping concept. Noise analysis is carried out for these two DTVF's and their performance compared. It is shown that for the particular application considered in this paper, the rule of time-dependence of the DTVF (the synchronization), may be effectively obtained by using a phase-locked loop (PIX) system. As an example, the DTVF + PLL system is used for synchronous phase estimation of a sine wave corrupted by a closely spaced FM interference. Simulation results are provided to substantiate the analysis as well as reveal the efficiency of the proposed time-varying system.",

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AU - Plotkin, Eugene I.

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Y1 - 1990/1/1

N2 - Synthesis of two second-order discrete time-varying filters (DTVF), capable of suppressing a sine signal with arbitrary frequency variation, is given. These structures are obtained by using the time-warping concept. Noise analysis is carried out for these two DTVF's and their performance compared. It is shown that for the particular application considered in this paper, the rule of time-dependence of the DTVF (the synchronization), may be effectively obtained by using a phase-locked loop (PIX) system. As an example, the DTVF + PLL system is used for synchronous phase estimation of a sine wave corrupted by a closely spaced FM interference. Simulation results are provided to substantiate the analysis as well as reveal the efficiency of the proposed time-varying system.

AB - Synthesis of two second-order discrete time-varying filters (DTVF), capable of suppressing a sine signal with arbitrary frequency variation, is given. These structures are obtained by using the time-warping concept. Noise analysis is carried out for these two DTVF's and their performance compared. It is shown that for the particular application considered in this paper, the rule of time-dependence of the DTVF (the synchronization), may be effectively obtained by using a phase-locked loop (PIX) system. As an example, the DTVF + PLL system is used for synchronous phase estimation of a sine wave corrupted by a closely spaced FM interference. Simulation results are provided to substantiate the analysis as well as reveal the efficiency of the proposed time-varying system.

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Synthesis of Discrete Time-Varying Null Filters for Frequency-Varying Signals Using the Time-Warping Technique

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