New TF-domain pilot sequences and direct twisted-convolution estimation outperform standard Zadoff-Chu methods for LoS delay-Doppler recovery across Rician factors and SNRs.
Two-dimensional del ay-doppler pilots and channel estimation for multi-antenna otfs in dou bly dispersive channels
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Time-Frequency Pilot Sequence Design and LoS Delay-Doppler Estimation
New TF-domain pilot sequences and direct twisted-convolution estimation outperform standard Zadoff-Chu methods for LoS delay-Doppler recovery across Rician factors and SNRs.