 |
 |
 |
Journal articles
Two-dimensional active raypath separation using examination of the roots of the spectrum polynomial
Abstract : The application of the root multiple signal classification algorithm for raypath separation was motivated by the dramatic reduction in processing time of the multiple-signal classification algorithm. However, the algorithm provides classification only in the direction of the arrival domain and fails to separate raypaths arriving at the array with similar directions of arrival. Moreover, for many applications in shallow water (such as ocean acoustic tomography and active sonar), the emitted signal is known and can be used as a priori information to improve the resolution. Thus, in this study, a two-dimensional active wideband classification algorithm is developed using the examination of the roots of the spectrum polynomial in the angle versus time domain. A two-step strategy is developed to enable extension to the two-dimensional case. The results of simulations confirm that the proposed algorithm achieves almost identical resolution as the existing two-dimensional algorithms while offering a significant reduction in computation time. (C) 2017 Acoustical Society of America
https://hal-univ-rennes1.archives-ouvertes.fr/hal-01671398
Contributor : Laurent Jonchère Connect in order to contact the contributor
Submitted on : Friday, December 22, 2017 - 11:18:15 AM
Last modification on : Friday, January 15, 2021 - 3:33:14 AM
Contributor : Laurent Jonchère Connect in order to contact the contributor
Submitted on : Friday, December 22, 2017 - 11:18:15 AM
Last modification on : Friday, January 15, 2021 - 3:33:14 AM
Links full text
