Fast range and Doppler estimation for narrowband active sonar

S.R. Dooley, A.K. Nandi
1999 1999 IEEE International Conference on Acoustics, Speech, and Signal Processing. Proceedings. ICASSP99 (Cat. No.99CH36258)  
In this paper, we present a computationally simple algorithm suitable for fast, high resolution estimation of time delays and doppler shifts (which are necessary for target localization and tracking) between narrowband signals in an active sonar system. The algorithm uses a modulated Lagrange interpolation filter and an LMStype algorithm. The problem of delay and doppler estimation is reduced to a linear regression problem. Convergence and performance analysis of the method is studied both
more » ... tically and through simulation. It is demonstrated that the method provides estimates close to the Cramer-Rao Lower Bound.
doi:10.1109/icassp.1999.761346 dblp:conf/icassp/DooleyN99 fatcat:6gl4e7f7w5geznnysziyjv5j3a