Co-channel signal separation using coupled digital phase-locked loops

Side effects of frequency reuse are discussed, particularly co-channel interference in scalar measurement FM systems. Continuous and discrete time state-space models for multiple source angle modulated communications environments are developed and coupled digital phase-locked loop (CDPLL) estimator...

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Main Author: Hedstrom, Brad Allen
Other Authors: Kirlin, R, Lynn
Format: Others
Language:English
en
Published: 2018
Subjects:
Online Access:https://dspace.library.uvic.ca//handle/1828/9642
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spelling ndltd-uvic.ca-oai-dspace.library.uvic.ca-1828-96422018-07-10T17:26:45Z Co-channel signal separation using coupled digital phase-locked loops Hedstrom, Brad Allen Kirlin, R, Lynn Signal processing Digital computer simulation Side effects of frequency reuse are discussed, particularly co-channel interference in scalar measurement FM systems. Continuous and discrete time state-space models for multiple source angle modulated communications environments are developed and coupled digital phase-locked loop (CDPLL) estimator structures are derived based on the Extended Kalman Filter (EKF). Separability of two sources is investigated by examination of state observability and by simulations of the derived estimators. The relationship between the EKF and the CDPLL is presented and their linear and nonlinear behavior discussed. Acquisition and tracking characteristics are simulated and results presented. The new estimator is compared to related efforts found in the literature. The effects of time-varying signal multiplicity is briefly treated. An example of polarization diversity for frequency reuse (vector measurement) is also presented and is shown to be adequately modeled by the derived communications model. Graduate 2018-07-09T19:20:20Z 2018-07-09T19:20:20Z 1993 2018-07-09 Thesis https://dspace.library.uvic.ca//handle/1828/9642 English en Available to the World Wide Web application/pdf
collection NDLTD
language English
en
format Others
sources NDLTD
topic Signal processing
Digital computer simulation
spellingShingle Signal processing
Digital computer simulation
Hedstrom, Brad Allen
Co-channel signal separation using coupled digital phase-locked loops
description Side effects of frequency reuse are discussed, particularly co-channel interference in scalar measurement FM systems. Continuous and discrete time state-space models for multiple source angle modulated communications environments are developed and coupled digital phase-locked loop (CDPLL) estimator structures are derived based on the Extended Kalman Filter (EKF). Separability of two sources is investigated by examination of state observability and by simulations of the derived estimators. The relationship between the EKF and the CDPLL is presented and their linear and nonlinear behavior discussed. Acquisition and tracking characteristics are simulated and results presented. The new estimator is compared to related efforts found in the literature. The effects of time-varying signal multiplicity is briefly treated. An example of polarization diversity for frequency reuse (vector measurement) is also presented and is shown to be adequately modeled by the derived communications model. === Graduate
author2 Kirlin, R, Lynn
author_facet Kirlin, R, Lynn
Hedstrom, Brad Allen
author Hedstrom, Brad Allen
author_sort Hedstrom, Brad Allen
title Co-channel signal separation using coupled digital phase-locked loops
title_short Co-channel signal separation using coupled digital phase-locked loops
title_full Co-channel signal separation using coupled digital phase-locked loops
title_fullStr Co-channel signal separation using coupled digital phase-locked loops
title_full_unstemmed Co-channel signal separation using coupled digital phase-locked loops
title_sort co-channel signal separation using coupled digital phase-locked loops
publishDate 2018
url https://dspace.library.uvic.ca//handle/1828/9642
work_keys_str_mv AT hedstrombradallen cochannelsignalseparationusingcoupleddigitalphaselockedloops
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