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—We consider the problem of timing recovery for bandlimited, baud-rate sampled systems with intersymbol interference and a timing offset that can be modeled as a combination of a frequency offset and a random walk. We first derive the Cramér–Rao bound (CRB), which is a lower bound on the estimation error variance for any timing estimator. Conventional… (More)

The nonlinear write process of magnetic recording allows to write the symbols 1 only. The magnetic channel is a diierentiating channel. The locations of the transitions from +1 to-1 and vice versa in the input signal to the magnetic channel are important for the received waveform. This paper deenes a noise enhancement constrained,-nite dimensional… (More)

The estimation of the frequencies of sinusoids in noise is a very common problem. This paper addresses the estimation of sinusoids in a low SNR environment. This sinusoidal frequency estimation problem can be used to nd the carrier frequencies and baud rates of communication waveforms after some appropriate nonlinearity. If the underlying signal model is… (More)

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