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Nicholas J. Joslyn, Alexander S. Douglass and David R. Dowling
The frequency-difference and frequency-sum autoproducts, quadratic products of complex acoustic field amplitudes at two frequencies, may mimic genuine acoustic fields at the difference and sum frequencies of the constituent fields, respectively. Autoprod...
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Mojgan Mirzaei Hotkani, Jean-Francois Bousquet, Seyed Alireza Seyedin, Bruce Martin and Ehsan Malekshahi
In this research, a new application using broadband ship noise as a source-of-opportunity to estimate the scattering field from the underwater targets is reported. For this purpose, a field trial was conducted in collaboration with JASCO Applied Sciences...
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Felipe A Vallejo, Belman Jahir Rodríguez, Marcelo Herrera Martínez
Pág. 67 - 80
El objetivo del presente trabajo es hacer una introducción a la teoría básica utilizada para extraer información y cómo hacer un procesamiento de señales óptimo para sistemas SoNAR activos o pasivos. En especial, se revisa cómo se catalogan los problemas...
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Endre Hofstad Hansen, Liviu Theodor Ene, Terje Gobakken, Hans Ole Ørka, Ole Martin Bollandsås and Erik Næsset
Forest attributes such as tree heights, diameter distribution, volumes, and biomass can be modeled utilizing the relationship between remotely sensed metrics as predictor variables, and measurements of forest attributes on the ground. The quality of the ...
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