TY - GEN
T1 - Instantaneous frequency rate estimation for high-order polynomial-phase signal
AU - Wang, Pu
AU - Djurović, Igor
AU - Li, Hongbin
AU - Yang, Jianyu
PY - 2009
Y1 - 2009
N2 - For a high-order polynomial-phase signal (PPS), instantaneous frequency rate (IFR), which is defined as the second derivative of the phase, is estimated by using an estimator with only a second-order nonlinearity. Compared to high-order phase function (HPF), the proposed IFR estimator presents improved performance including smaller mean-squared error (MSE) and lower SNR threshold. Statistical analysis via a multivariate first-order perturbation analysis is derived for the estimate bias and MSE. Numerical results verify our analytical results.
AB - For a high-order polynomial-phase signal (PPS), instantaneous frequency rate (IFR), which is defined as the second derivative of the phase, is estimated by using an estimator with only a second-order nonlinearity. Compared to high-order phase function (HPF), the proposed IFR estimator presents improved performance including smaller mean-squared error (MSE) and lower SNR threshold. Statistical analysis via a multivariate first-order perturbation analysis is derived for the estimate bias and MSE. Numerical results verify our analytical results.
KW - Parameter estimation
KW - Polynomial phase signal
UR - http://www.scopus.com/inward/record.url?scp=70349213310&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=70349213310&partnerID=8YFLogxK
U2 - 10.1109/ICASSP.2009.4960257
DO - 10.1109/ICASSP.2009.4960257
M3 - Conference contribution
AN - SCOPUS:70349213310
SN - 9781424423545
T3 - ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
SP - 3009
EP - 3012
BT - 2009 IEEE International Conference on Acoustics, Speech, and Signal Processing - Proceedings, ICASSP 2009
T2 - 2009 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2009
Y2 - 19 April 2009 through 24 April 2009
ER -