Three‐dimensional noise‐field directionality estimation from towed line‐array data

1997 ◽  
Vol 101 (5) ◽  
pp. 3026-3026
Author(s):  
Ronald A. Wagstaff ◽  
J. Newcomb
Keyword(s):  
Three Dimensional ◽  
Array Data ◽  
Noise Field ◽  
Line Array

Results of environment inversion using modes extracted from vertical line array data

1999 ◽  
Vol 106 (4) ◽  
pp. 2133-2133
Author(s):  
Tracianne B. Neilsen ◽  
Evan K. Westwood
Keyword(s):  
Vertical Line ◽  
Array Data ◽  
Line Array

Evaluation of the RPC Model for Ziyuan-3 Three-Line Array Imagery

2017 ◽  
Author(s):  
Zhonghua Hong ◽  
Shengyuan Xu ◽  
Yun Zhang ◽  
Yanling Han ◽  
Yongjiu Feng
Keyword(s):  
Imaging System ◽  
Three Dimensional ◽  
Generic Model ◽  
Axis Direction ◽  
Polynomial Coefficients ◽  
Sensor Model ◽  
Rational Polynomial ◽  
Line Array ◽  
Physical Sensor ◽  
Sensor Models

Ziyuan-3 (ZY-3) satellite is the first civilian stereo mapping satellite in China and was designed to achieve the 1: 50000 scale mapping for land and ocean. Rigorous sensor model (RSM) is required to build the relationship between the three-dimensional (3D) object space and two-dimensional (2D) image space of ZY-3 satellite imagery. However, each satellite sensor has its own imaging system with different physical sensor models, which increase the difficulty of geometric integration of multi-source images with different sensor models. Therefore, it is critical to generate generic model especially rational polynomial coefficients (RPCs) of optical imagery. Recently, relatively a few researches have been conducted on RPCs generation to ZY-3 satellite. This paper proposes an approach to evaluate the performance of RPCs generation from RSM of ZY-3 imagery. Three scenarios experiments with different terrain features (such as ocean, city and grassland) are designed and conducted to comprehensively evaluate the replacement accuracies of this approach and analyze the RPCs fitting error. All the experimental results demonstrate that the proposed method achieved encouraging accuracy of better than 1.946E-04 pixel in both x-axis direction and y-axis direction, it indicates that the RPCs is suitable for ZY-3 imagery and can be used as a replacement for the RSM of ZY-3 imagery.

Comparison of vertical line array data taken at two depths in the deep ocean

1985 ◽  
Vol 77 (S1) ◽  
pp. S70-S71 ◽  
Author(s):  
Mimi Zebrick Lawrence ◽  
Dan J. Ramsdale
Keyword(s):  
Deep Ocean ◽  
Vertical Line ◽  
Array Data ◽  
Line Array

Small boat localization using adaptive three-dimensional beamforming on a tetrahedral and vertical line array

2013 ◽  
Vol 133 (5) ◽  
pp. 3527-3527
Author(s):  
John Gebbie ◽  
Martin Siderius ◽  
Peter Nielsen ◽  
James H. Miller ◽  
Steven Crocker ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Vertical Line ◽  
Small Boat ◽  
Line Array

Short-term fluctuations in the ambient noise field at an Arctic chokepoint horizontal line array

2018 ◽  
Vol 144 (3) ◽  
pp. 1818-1818 ◽  
Author(s):  
Dugald Thomson ◽  
David R. Barclay ◽  
Stan E. Dosso ◽  
Garry J. Heard
Keyword(s):  
Ambient Noise ◽  
Horizontal Line ◽  
Short Term ◽  
Noise Field ◽  
Line Array
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