Fast communication: Viterbi algorithm for chirp-rate and instantaneous frequency estimation

Authors:
Igor Djurović
Affiliations:
Electrical Engineering Department, University of Montenegro, Cetinjski put bb, 81000 Podgorica, Montenegro
Venue:
Signal Processing
Year:
2011

Citing 10
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Abstract

An instance of the Viterbi algorithm has been applied to the cubic phase function and chirp-rate estimation. The proposed algorithm has shown excellent performance for high noise environment. The obtained chirp-rate estimate is used in the instantaneous frequency estimation. The proposed instantaneous frequency estimator gives superior performance with respect to the state-of-the-art techniques for signals with non-linear instantaneous frequency.