Time Delay Estimation Bounds in Convolutive Random Channels

@article{Xu2007TimeDE,
  title={Time Delay Estimation Bounds in Convolutive Random Channels},
  author={Zhengyuan Xu and B. M. Sadler},
  journal={IEEE Journal of Selected Topics in Signal Processing},
  year={2007},
  volume={1},
  pages={418-430}
}
We develop bounds on time delay estimation (TDE) in wideband convolutive random channels. The improved Ziv-Zakai bound (ZZB) is adapted to this case, resulting in mean-square error (MSE) bounds that are independent of estimator bias, and avoid regularity conditions. We assume a known transmitted signal, a tapped delay line random channel model, and a uniform prior on the delay. The taps are modeled as Gaussian, including non-zero mean and possible correlation between taps. The channel model may… CONTINUE READING

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