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An Algorithm for the Fine Estimation of Polynomial-Phase Signals

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3 Author(s)
Djurovic, I. ; Dept. of Electr. Eng., Univ. of Montenegro, Podgorica, Montenegro ; Djukanovic, S. ; Lukin, Vladimir V.

To precisely estimate the parameters of polynomial-phase signals (PPSs), we adopt a recently-proposed algorithm for sinusoid frequency estimation. The algorithm is combined with the Wigner distribution to estimate the instantaneous frequency of linear FM signals and with the high-order ambiguity function to estimate parameters of higher order PPSs. Both Gaussian and non-Gaussian noises are considered in simulations, which show that the algorithm converges within two iterations and approach achievable limits for the considered techniques.

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Aerospace and Electronic Systems, IEEE Transactions on  (Volume:48 ,  Issue: 4 )