Estimation of the time-varying frequency of a signal: the Cramer-Rao bound and the application of Wigner distribution
- 1 March 1990
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Acoustics, Speech, and Signal Processing
- Vol. 38 (3) , 519-536
- https://doi.org/10.1109/29.106870
Abstract
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 presentedKeywords
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