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Adaptive Algorithm for Chirp-Rate Estimation
EURASIP Journal on Advances in Signal Processing volume 2009, Article number: 727034 (2009)
Chirp-rate, as a second derivative of signal phase, is an important feature of nonstationary signals in numerous applications such as radar, sonar, and communications. In this paper, an adaptive algorithm for the chirp-rate estimation is proposed. It is based on the confidence intervals rule and the cubic-phase function. The window width is adaptively selected to achieve good tradeoff between bias and variance of the chirp-rate estimate. The proposed algorithm is verified by simulations and the results show that it outperforms the standard algorithm with fixed window width.
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Djurović, I., Ioana, C., Stanković, L. et al. Adaptive Algorithm for Chirp-Rate Estimation. EURASIP J. Adv. Signal Process. 2009, 727034 (2009) doi:10.1155/2009/727034
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