A minimum-entropy Doppler plus closed-form delay estimator for fractional AFDM responses achieves near-RCRLB RMSE with substantially lower complexity than matched filtering or sparse Bayesian alternatives.
A joint time- frequency channel estimation method for ICAN-enabled LEO satellites,
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A Low-Complexity Joint Fractional Delay and Doppler Frequency Estimator for AFDM-Enabled Vehicular LEO-ICAN Systems
A minimum-entropy Doppler plus closed-form delay estimator for fractional AFDM responses achieves near-RCRLB RMSE with substantially lower complexity than matched filtering or sparse Bayesian alternatives.