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H. Ochi, Y. Watanabe and T. Shimura, “Measurement of Absorption Loss at 80 khz Band for Wideband Underwater Acoustic Communication,” Japanese Journal of Applied Physics, Vol. 47, No. 5, 2008, pp. 4366-4368. doi:10.1143/JJAP.47.4366

has been cited by the following article:

• TITLE: Trade-Off between Bandwidth and Number of Array Elements in the Performance Enhancement of Passive Fathometer

  AUTHORS: Jahangir Alam, E. H. Huntington, M. R. Frater

  KEYWORDS: Passive Fathometer; Cross-Correlation; SNR; Resolution; Bandwidth; Array Processing

  JOURNAL NAME: Open Journal of Acoustics, Vol.3 No.2A, June 20, 2013

  ABSTRACT: Improved signal to noise ratio (SNR) and resolution of the ambient noise cross-correlation function (NCF) between two points help in the estimation of bottom profile of the ocean. One of the main requirements of the improvement of the SNR and resolution is collection of a large amount of data. These large amounts of data can be achieved by recording a large bandwidth ambient noise or using an array of hydrophones. This paper evaluates the performance of the array processing and compares it to the large bandwidth technique in terms of SNR and resolution of NCF. It is shown that the large bandwidth technique gives better SNR and resolution compared to the array processing technique under certain conditions. The outcome of this article finds application in the enhanced estimation of the passive fathometer.