TY - GEN
T1 - Localization of underwater tone noise sources using instantaneous frequency rate estimate
AU - Xu, Lingji
AU - Yang, Yixin
AU - Yang, Long
PY - 2013
Y1 - 2013
N2 - Doppler effect can be used to estimate the movement parameter of an acoustic source. As one of these parameters, the beam moment is the time at closet point of approach, and it corresponds to the position of acoustic source on the moving object. We introduced a new time-frequency rate distribution referred to as L-phase distribution (LPD), which can accurately estimate the instantaneous frequency rate (IFR) of high-order polynomial phase signal (PPS). The iteration procedure is given to realize the discrete-time LPD. After applying the discrete-time LPD to estimate the IFR of Doppler signal caused by relative motion between the moving acoustic source and the measurement hydrophone, the abeam time is obtained according to the minimum of the estimated IFR, and then the positions of the tone noise sources on underwater moving object can be localized. Localization errors were analyzed using simulations, and the sea experiment results showed the validity of the proposed method.
AB - Doppler effect can be used to estimate the movement parameter of an acoustic source. As one of these parameters, the beam moment is the time at closet point of approach, and it corresponds to the position of acoustic source on the moving object. We introduced a new time-frequency rate distribution referred to as L-phase distribution (LPD), which can accurately estimate the instantaneous frequency rate (IFR) of high-order polynomial phase signal (PPS). The iteration procedure is given to realize the discrete-time LPD. After applying the discrete-time LPD to estimate the IFR of Doppler signal caused by relative motion between the moving acoustic source and the measurement hydrophone, the abeam time is obtained according to the minimum of the estimated IFR, and then the positions of the tone noise sources on underwater moving object can be localized. Localization errors were analyzed using simulations, and the sea experiment results showed the validity of the proposed method.
KW - Doppler effect
KW - Instantaneous frequency rate
KW - L-phase distribution
KW - Localization of tone noise sources
KW - Underwater moving object
UR - https://www.scopus.com/pages/publications/84896377674
U2 - 10.23919/oceans.2013.6741007
DO - 10.23919/oceans.2013.6741007
M3 - 会议稿件
AN - SCOPUS:84896377674
SN - 9780933957404
T3 - OCEANS 2013 MTS/IEEE - San Diego: An Ocean in Common
BT - OCEANS 2013 MTS/IEEE - San Diego
PB - IEEE Computer Society
T2 - 2013 MTS/IEEE San Diego Conference: An Ocean in Common, OCEANS 2013
Y2 - 23 September 2013 through 26 September 2013
ER -