Proceedings of 1994 28th Asilomar Conference on Signals, Systems and Computers (1994)
Pacific Grove, CA, USA
Oct. 31, 1994 to Nov. 2, 1994
J.A. Tague , Dept. of Electr. & Comput. Eng., Ohio Univ., Athens, OH, USA
Y.D. Cheng , Dept. of Electr. & Comput. Eng., Ohio Univ., Athens, OH, USA
We introduce a new array processing system that performs high resolution imaging in turbulent ocean media. It exploits information contained in higher order spatial spectra and images to a resolution which is limited by the array aperture rather than the medium. Precise a priori knowledge of the turbulence's spatial coherence structure is not needed. Furthermore, the signal processing is straightforward to implement, the system is self-calibrating, and the computational demands are reasonable. We have conducted initial tests of the imager and present representative results.<
sonar imaging, image resolution, turbulence, sonar arrays, spectral analysis, array signal processing
J. Tague and Y. Cheng, "Acoustic imaging in turbulent media with the spatial bispectrum," Proceedings of 1994 28th Asilomar Conference on Signals, Systems and Computers(ACSSC), Pacific Grove, CA, USA, 1995, pp. 1190-1194.