A hybrid plane‐wave beamforming/matched‐field processing, track‐before‐detect technique for detection of broadband moving sources with horizontal line arrays

2000 ◽  
Vol 107 (5) ◽  
pp. 2890-2890 ◽  
Author(s):  
Paul A. Baxley ◽  
Randall Brannan
Keyword(s):  
Plane Wave ◽  
Horizontal Line ◽  
Matched Field Processing ◽  
Moving Sources ◽  
Processing Track ◽  
Track Before Detect

scholarly journals Track‐before‐detect matched‐field processing

1993 ◽  
Vol 94 (3) ◽  
pp. 1844-1845 ◽  
Author(s):  
Paul A. Baxley ◽  
Robert Bruce Williams ◽  
William H. Hodgkiss
Keyword(s):  
Matched Field Processing ◽  
Track Before Detect

Matched‐field processing of multi‐tone acoustic signals in shallow water with a horizontal line array

1997 ◽  
Vol 101 (5) ◽  
pp. 3048-3048
Author(s):  
Phil Schey ◽  
Newell O. Booth ◽  
Gary Dorrance ◽  
Al Aburto ◽  
William S. Hodgkiss
Keyword(s):  
Shallow Water ◽  
Acoustic Signals ◽  
Horizontal Line ◽  
Matched Field Processing ◽  
Line Array

Synthetic adaptive matched field processing for moving source with a horizontal line array

2021 ◽  
Vol 149 (2) ◽  
pp. 1138-1146
Author(s):  
Fenghua Li ◽  
Feilong Zhu ◽  
Yanjun Zhang ◽  
Bo Zhang ◽  
Wen Li ◽  
...  
Keyword(s):  
Horizontal Line ◽  
Matched Field Processing ◽  
Moving Source ◽  
Line Array

Theory and Errors in Stereo Electron Microscopy

1968 ◽  
Vol 26 ◽  
pp. 336-337
Author(s):  
J. M. Pankratz
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Plane Wave ◽  
Focal Length ◽  
Foil Thickness ◽  
Points Of Interest ◽  
Transmission Electron ◽  
Vertical Spacing ◽  
Illuminating System

It is often desirable in transmission electron microscopy to know the vertical spacing of points of interest within a specimen. However, in order to measure a stereo effect, one must have two pictures of the same area taken from different angles, and one must have also a formula for converting measured differences between corresponding points (parallax) into a height differential.Assume (a) that the impinging beam of electrons can be considered as a plane wave and (b) that the magnification is the same at the top and bottom of the specimen. The first assumption is good when the illuminating system is overfocused. The second assumption (the so-called “perspective error”) is good when the focal length is large (3 x 107Å) in relation to foil thickness (∼103 Å).

A hybrid Gaussian and plane wave density functional scheme

1997 ◽  
Vol 92 (3) ◽  
pp. 477-487 ◽  
Author(s):  
GERALD LIPPERT ◽  
JuRG HUTTER ◽  
MICHELE PARRINELLO
Keyword(s):  
Plane Wave ◽  
Density Functional ◽  
Functional Scheme
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