30 November 1992 Performance measures for coupled digital phase-locked loops for the separation of cochannel signals
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Abstract
Coupled digital phase-locked loops (CDPLLs), derived from extended Kalman filter theory, have been shown to suppress adjacent and co-channel interferers. This paper addresses the ability of these CDPLLs to separate co-channel signals. State observability criteria are defined and examined for non-linear state observations which model phase modulation. These metrics can then be used to address signal separation and tracking behavior of CDPLLs.
© (1992) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Brad A. Hedstrom and R. Lynn Kirlin "Performance measures for coupled digital phase-locked loops for the separation of cochannel signals", Proc. SPIE 1770, Advanced Signal Processing Algorithms, Architectures, and Implementations III, (30 November 1992); doi: 10.1117/12.130929; https://doi.org/10.1117/12.130929
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