Advances in Sonar Technology 2012 Part 9 potx

... http://www.npt.nuwc.navy.mil/UUV Walsh G. ( 196 9). Acoustic Mapping Apparatus. US patent n° 3484737, 196 9. Advances in Sonar Technology 156 uneconomical and inefficient. Evans et al. (Evans et al., 199 9) investigated ... there has been an increasing emphasis on the integration of multiple sonar sensors during marine survey operations (Wright et al., 199 6; Laban, 199 8; Po...

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... is obtained by sensing, recording, and processing the ping-to-ping phase history resulting from the variation in slant range caused by the projector’s main lobe illumination pattern moving past ... and squint look operations", OCEANS &apos ;98 Conference Proceedings, vol.2, no., pp .96 0 -96 4 vol.2, 28 Sep-1 Oct 199 8. Nelson, M. A. ( 199 8). “DARPA Synthetic Aperture Sonar , Pro...

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... p. cm. ISBN 97 8-3 -90 2613-48-6 1. Advances in Sonar Technology, Sergio Rui Silva Advances in Sonar Technology 4 Ray tracing Ray tracing (Bell 199 7) is a method to calculate the path ... replaced by a final image level scaling. Computations can be performed directly in image space, removing also the need for the FFT when working in frequency domain, resulting...

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... mapping operation is carried out using an interpolation process. The final step is to invert the Fourier domain with a windowing function WW(k x ,k y ) to reduce the side lobes in the final ... 2-D weighting function to be applied to the Advances in Sonar Technology 52 3.1.4 Radiation pattern The radiation pattern or sonar footprint of a stripmap SAS system maintains th...

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... signals occur in radar and sonar processing, but also in other fields such as medicine (Jane et al., 199 1; Schijvenaars et al, 199 4; Laguna & Sornmo, 2000) and environment monitoring (Viciani ... Advances in Sonar Technology 76 the scanning motion of the emitter antenna (and possibly the sensor antenna) may in this case influence the scaling. In general, we as...

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... and Δ obtained by performing the computations described in the main text (solid lines) and corresponding asymptotical estimates (eqs. 26, dashed). Advances in Sonar Technology 94 measurement ... cleaner data. Signal processing may be performed in both time-domain and Advances in Sonar Technology 96 for ship identification. In sequence, the signal is squared...

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... Processing, ISBN: 0- 890 06-453 -9. Artech House Inc, Nortwood, MA, 199 1. Nielsen, R. O. ( 199 9). “Cramer-Rao lower bounds for sonar broadband modulation parameters”. IEEE Journal of Ocean Engineering, ... no. 3, pp. 285- 290 , July 199 9. Papoulis,A. ( 199 1), Probability, Random Variables, and Stochastic Processes. McGraw-Hill. Peyvandi, H., Fazaeefar, B., Amindavar, H ( 199 8). De...

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... (segmentation) and kurtosis parameters in Fig. 3 Advances in Sonar Technology 140 In a similar way, we define a rate of error knowing the environment truth by the following expression: ( ) ( ) ( ) ∑ =∩ += ø 2 1log/ BA AAmBmEr ... decreasing mass (from one to zero) for the proposition “nonobject,” an increasing mass (from zero to one) for the proposition “doubt,” Advan...

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... P r D e α ϕθ ϕθ − ⋅ =⋅ ⋅ (3) Advances in Sonar Technology 188 Remote Sensing Conference Proceedings (pp. 9. 5.1 -9. 5.6). Canberra, Australia, pp. 9. 5.1- 9. 5.6. Karpouzli, E.; Malthus, T. ... & Clark, C. D. ( 199 7). Coral reef habitat-mapping: how much detail can remote sensing provide? Marine Biology, 130, 193 -202. Mumby, P. J. & Harborne, A. R. ( 199 9). Dev...

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... itself. The particle filter is in charge of recursively updating the particle set. Dellaert et al. (Dellaert et al. 199 9) and Fox et al. (Fox et al. 199 9) introduced particle filters in the localization ... illustrated in Figure 2. Line 7 is in charge of building the new local map of each particle, by adding the current set of sonar readings and discarding to oldest readings so...

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