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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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 |
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English en |
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Signal processing Digital computer simulation |
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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 |
_version_ |
1718711616722173952 |