Two Simplified Recursive Gauss–Newton Algorithms for Direct Amplitude and Phase Tracking of a Real Sinusoid

@article{Zheng2007TwoSR,
  title={Two Simplified Recursive Gauss–Newton Algorithms for Direct Amplitude and Phase Tracking of a Real Sinusoid},
  author={Jun Zheng and Kenneth Wing-Kin Lui and Wing-Kin Ma and Hing-Cheung So},
  journal={IEEE Signal Processing Letters},
  year={2007},
  volume={14},
  pages={972-975}
}
In this letter, the problem of adaptive tracking the amplitude and phase of a noisy sinusoid with known frequency is addressed. Based on approximating the recursive Gauss-Newton approach, two computationally simple algorithms, which provide direct parameter estimates, are devised and analyzed. Simulation results show that the proposed methods can attain identical estimation performance as their original one. 
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