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Estimation of the time-varying frequency of a signal: the Cramer-Rao bound and the application of Wigner distribution

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2 Author(s)
K. M. Wong ; Dept. of Electr. & Comput. Eng., McMaster Univ., Hamilton, Ont., Canada ; Q. Jin

The problem of estimating the time-varying frequency of a signal is addressed. The Cramer-Rao bound of such an estimate is developed. The Wigner distribution is applied to this problem. A theoretical analysis which derives the bias and variance resulting from the use of the Wigner distribution is performed. Computer simulation results that verify the performance of the method are presented

Published in:

IEEE Transactions on Acoustics, Speech, and Signal Processing  (Volume:38 ,  Issue: 3 )