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CPF-HAF estimator of polynomial-phase signals

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2 Author(s)
M. Simeunovic ; University of Montenegro, Montenegro ; I. Djurovic

A simple and effective modification of the high-order ambiguity function (HAF) is introduced. The number of phase differentiations is decreased to two with respect to the HAF. The obtained signal has a cubic phase, the parameters of which can be estimated using the cubic phase function (CPF) in the final stage. The SNR threshold of the proposed modification is reduced for 9 dB with respect to the HAF, while the MSE is about 2 dB less.

Published in:

Electronics Letters  (Volume:47 ,  Issue: 17 )