Advances in Sonar Technology 2012 Part 4 pptx
Tribology Lubricants and Lubrication 2012 Part 4 pptx
... can Tribology - Lubricants and Lubrication 70 The EDX reference analysis of bearing steel is provided in Figure 43 . It allows comparisons with the spectra of Figures 39, 41 b and 42 b. ... flat (30°) and steep (80°) bands within the aged matrix or along propagating corrosion fatigue cracks. Rolling contact fatigue in the subsurface region can Tribology - Lubrica...
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Electricity Infrastructures in the Global Marketplace Part 4 pptx
... equivalent of primary energy. The Electricity Infrastructures in the Global Marketplace1 62 Table 4. 2 identifies the site selected in each of the five states that participated in the study, and also ... shipbuilding, and offshore oil and gas industries. The industry-documented historical wind energy learning curve is shown as the top line in Figure 4. 7 [31...
Ngày tải lên: 19/06/2014, 21:20
Advances in Flight Control Systems Part 4 potx
... W σ Ψ σ ( 24) ˆ G = G ∗ + W δ Ψ δ (25) 58 Advances in Flight Control Systems Advances in Flight Control Systems 50 7. References Clough, B. T. (2005), “Unmanned Aerial Vehicles: Autonomous Control ... an indirect adaptive law which updates the model inversion controller; and moreover ˆ G is ensured to be invertible by verifying its matrix conditioning number. 5...
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Advances in Flight Control Systems Part 6 pptx
... Crucial in this context is to avoid engine throttle saturation. Therefore, in this experiment only a heading change has been considered, as shown 1 06 Advances in Flight Control Systems Advances in Flight ... control inputs (control surface deflections and engine settings) relevant for the aerodynamic forces and moments. The candidate regressors are shown in table 2....
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Advances in Sonar Technology 2012 Part 1 pptx
... p. cm. ISBN 978-3-902 613 -48-6 1. Advances in Sonar Technology, Sergio Rui Silva Advances in Sonar Technology 4 Ray tracing Ray tracing (Bell 19 97) 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, resulti...
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Advances in Sonar Technology 2012 Part 3 potx
... 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 ... 445-448, April 19 93. Foo, K.Y.; Atkins, P. R.; Collins, T. (20 03) “Robust Underwater Imaging With Fast Broadband Incoherent Synthetic Aperture Sonar , Proceedings of IEEE International Co...
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Advances in Sonar Technology 2012 Part 4 pptx
... 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...
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Advances in Sonar Technology 2012 Part 5 pptx
... 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 assume that the scaling ... Sciences and Technology, Norwegian University of Life Sciences, 2 Institute of Energy Technology, Department of Process and Fluid Flow Technology, Norway 1. Introduction In r...
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Advances in Sonar Technology 2012 Part 6 pptx
... of σ 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 ... 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 as i...
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Advances in Sonar Technology 2012 Part 7 doc
... pursuit, Advances in Neural Information Signal Processing, no. 10, pp. 273 - 279 . Hyvärinen, A. (1998b) Independent component analysis in the presence of Gaussian noise by maximizing joint likelihood. ... models remain valid. Advances in Sonar Technology 120 since the reader dealing with low-resolution sonar images may use the very same detection method proposed...
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Advances in Sonar Technology 2012 Part 8 docx
... (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 ... images obtained for each proposition with the kurtosis parameter in Fig. 3 Fig. 28. Mass images obtained after fusion of the three para...
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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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Advances in Sonar Technology 2012 Part 11 doc
... are pointed out in this new, fascinating, and open field of research. 2. Propagation of ultrasonic waves in the atmosphere Sound propagation in the atmosphere has been the subject of intensive ... L.; Schalles, J.; Hutchins, K. & Keck, J. (2002). Classifying and mapping general coral-reef structure using Ikonos data. Photogrammetric Engineering and Remote Sensing, 68, 1297-1305...
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Advances in Sonar Technology 2012 Part 12 pdf
... 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 that the map size remains ... relates the sonar readings to the robot pose. Line 3 uses the measurement model to incorporate the current readings into the particle set by computing the importance factor . Th...
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Advances in Sonar Technology 2012 Part 13 ppt
... i-th sonar sensor. Let be defined as the set of readings in represented with respect to the coordinate frame of using the relative motion proposed by the particle: (6) Advances in Sonar ... approach to linear filtering and prediction problems. Transactions of the ASME. Journal of Basic Engineering, Vol. 82, March 1960, pp. 35- 45. Advances in Sonar Technology...
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