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Parameter Estimation for Sinusoidal Frequency-Modulated Signals Using Phase Modulation
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DOI：10.1109/LSP.2020.3045881.png)
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摘要
En 中文
In this letter, we propose a novel estimator for the phase parameters of sinusoidal frequency-modulated (SFM) signals. First, we developed a simple function to perform phase modulation on the original SFM signal to obtain a new modulated signal. Second, we derived the amplitude spectrum (AS) of the modulated signal and proved that the AS exhibited peaks periodically. Third, we obtained the parameter estimation of SFM signals by locating the AS peaks. Finally, the estimates were refined to reduce bias. The simulation results show that the proposed technique has a lower signal-to-noise ratio threshold than the existing methods.
Keyword:
Phase modulation
parameter estimation
sinusoidal frequency-modulated signals
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9.6
论文数:
1.1W
被引数:
1.7W
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