Aj. Degroot et Db. Harris, COMPUTATIONALLY EFFICIENT, ROBUST ALGORITHM FOR MATCHED-FIELD PROCESSING, Circuits, systems, and signal processing, 17(2), 1998, pp. 165-193
The matched field processing (MFP) localization performance of very lo
w frequency (VLF) arrays operated in the deep ocean basins appears to
be limited more by uncertainty in the sound velocity profile (SVP) tha
n by low signal-to-noise ratio (SNR). We present a new robust variatio
n of MFP designed to be less sensitive to velocity error in weakly inh
omogeneous environments. We analyze the computational requirements of
this and other MFP algorithms. When either the search volume is large
of the acoustic array is large, computational efficiency is an issue.
We present an efficient MFP implementation for the conventional MFP al
gorithm and our robust algorithm, We show that parallel implementation
of these algorithms may allow real-time performance.