OCEAN ACOUSTIC DETECTION (1978-1984)

This was a research area totally unrelated to my PhD (or any prior work done by me) and was conducted at MIT when I started my academic career there (and in fact half a year before I was appointed Assistant Professor). The reason I became involved was due to (the late) Ira Dyer, then Head of the Ocean Engineering Department, who spotted a methodological similarity between my MIT MSc thesis, which examined a level-crossing problem (in the context of ship slamming) with some level-crossing problems in passive ocean acoustic detection. After some discussions, he helped me get a research project, funded by the Office of Naval Research (ONR), the following:

·       “Fluctuation Statistics and Signal Detection Modelling” (January 1979- June 1983).  Office of Naval Research. I was the sole PI of that project.

The project resulted in the PhD of Anastasios (Tassos) Perakis, one of three PhDs I supervised when I started by academic career at MIT (and among the five PhDs in total I supervised while at MIT). Peter Michalevsky, one of Dyer’s PhD students, was also involved in some of the papers.

I discontinued research in this area when the above project ended.

Related papers:

 

1.     Psaraftis,H.N., A.N.Perakis, P.N. Mikhalevsky, 1981, On a New Model for the Ocean Acoustic Detection Process, Journal of the Acoustical Association of America 69, No.6, 1724-1734.

2.     Psaraftis,H.N., A.N.Perakis, P.N.Mikhalevsky, 1981, Memory Detection Models for Phase-Random Ocean Acoustic Fluctuations, International Conference on Communications (IEEE), Denver, June 1981 (also presented at the 4th MIT/ONR Symposium on Command and Control, San Diego, June 1981).

3.     Psaraftis,H.N., A.N. Perakis, 1982, A Basic Problem of Resource Allocation in Target Tracking, Journal of the Acoustical Society of America 72, No.3, 824-833.

4.     Psaraftis,H.N., A.N.Perakis, 1982, Myopic and Presbyopic Approaches to a Multi-Sensor, Multi-Target Resource Allocation Problem, 5th MIT/ONR Symposium on Command and Control, Monterey, August.

5.     Perakis,A.N., H.N.Psaraftis, H.Gonzalez, 1983, Detection Modelling of Unsaturated and Partially Saturated Ocean Acoustic Signals, 6th MIT/ONR Symposium on Command and Control, Cambridge, July.

6.     Perakis,A.N., Psaraftis,H.N., 1983, Discrete-Time Detection Modelling for Unsaturated Ocean Acoustic Propagation, Journal of the Acoustical Society of America 74, No.5, 1630-1633.

7.     Psaraftis,H.N., A.N.,Perakis, 1984, A Sequential Hypothesis Testing, Optimal Stopping Problem in Underwater Acoustic Detection, Journal of the Acoustical Society of America 75, No.3, 859-865.