GLRT detection of signals in reverberation
Date of Original Version
A common problem in active sonar is that of multipath propagation in the ocean environment. A generalized likelihood ratio test (GLRT) approach is developed for detecting multiple target returns with unknown time delays and amplitudes in reverberation. The reverberation is modeled by a scattering function that is assumed to be described by the power spectral density of a complex autoregressive process. The generalized likelihood ratio test detector is described and its performance is compared to the clairvoyant optimal processor and an ad hoc processor.
ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
Carpenter, Robert N., and Steven Kay. "GLRT detection of signals in reverberation." ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings 5, (1995): 3127-3130. doi:10.1109/ICASSP.1995.479547.