Frequency-Difference Matched Field Processing for Broadband Source Localization With One Hydrophone in Shallow Ocean Environment

Matched field processing (MFP) is appliable to localize tonal sources with arrays and sensitive to the environment mismatch. To localize a broadband source with one hydrophone in shallow water, a new method utilizing frequency-difference autoproduct is proposed in this paper Simulations have been conducted to evaluate the performance of the method. A sea trial data from the SACLAT experiment (1993) is also used to validate it. Comparing to MFP with one hydrophone's magnitude-only data, the new method is more robust to the environment and has a higher success rate of source localization.