Experimental study on waveguide invariant passive ranging based on buoy

2021 ◽  
Author(s):  
Zhizhuan Wang ◽  
Mingwei Zhang ◽  
Yang Zhang ◽  
Guijuan Li ◽  
Xuegang Zhang
Keyword(s):  
Experimental Study ◽  
Waveguide Invariant ◽  
Passive Ranging

Passive ranging in strongly range-dependent environments: Effects of mode coupling on the waveguide invariant

2013 ◽  
Vol 134 (5) ◽  
pp. 4115-4115
Author(s):  
Alexander W. Sell ◽  
R. Lee Culver
Keyword(s):  
Mode Coupling ◽  
Waveguide Invariant ◽  
Passive Ranging

Passive ranging using the waveguide invariant.

2009 ◽  
Vol 125 (4) ◽  
pp. 2705-2705
Author(s):  
Kevin L. Cockrell ◽  
Henrik Schmidt
Keyword(s):  
Waveguide Invariant ◽  
Passive Ranging

Single hydrophone, passive ranging of tonal sources in shallow water using the waveguide invariant

2016 ◽  
Vol 139 (4) ◽  
pp. 2225-2225
Author(s):  
Andrew Young ◽  
Andrew Harms
Keyword(s):  
Shallow Water ◽  
Waveguide Invariant ◽  
Passive Ranging

Improved passive ranging algorithm based on the waveguide invariant theory

2016 ◽  
Author(s):  
Yun Yu ◽  
Hongwei Zhao ◽  
Jie Yu
Keyword(s):  
Invariant Theory ◽  
Waveguide Invariant ◽  
Passive Ranging

Acoustics vector sensor linear array passive ranging based on waveguide invariant

2012 ◽  
Author(s):  
Jian Li ◽  
Guiqing Sun ◽  
Qingbang Han ◽  
Chunhua Zhang
Keyword(s):  
Linear Array ◽  
Waveguide Invariant ◽  
Vector Sensor ◽  
Passive Ranging

Experimental study on the restoration from a tilt-azimuth series for improvement in resolution

1995 ◽  
Vol 53 ◽  
pp. 636-637
Author(s):  
Norio Baba ◽  
Norihiko Ichise ◽  
Syunya Watanabe
Keyword(s):  
Experimental Study ◽  
Spherical Aberration ◽  
Incident Beam ◽  
Optical Parameters ◽  
Beam Tilting ◽  
Illumination Method ◽  
Restoration Method ◽  
Illumination Mode

The tilted beam illumination method is used to improve the resolution comparing with the axial illumination mode. Using this advantage, a restoration method of several tilted beam images covering the full azimuthal range was proposed by Saxton, and experimentally examined. To make this technique more reliable it seems that some practical problems still remain. In this report the restoration was attempted and the problems were considered. In our study, four problems were pointed out for the experiment of the restoration. (1) Accurate beam tilt adjustment to fit the incident beam to the coma-free axis for the symmetrical beam tilting over the full azimuthal range. (2) Accurate measurements of the optical parameters which are necessary to design the restoration filter. Even if the spherical aberration coefficient Cs is known with accuracy and the axial astigmatism is sufficiently compensated, at least the defocus value must be measured. (3) Accurate alignment of the tilt-azimuth series images.

An experimental study in reducing blood pressure in spontaneously hypertensive rats through extracellular signal-regulated kinase inhibition

2010 ◽  
Vol 34 (8) ◽  
pp. S31-S31
Author(s):  
Li Jing ◽  
Jian‑zhong Zhang ◽  
Jin‑ping Sun ◽  
Xin An ◽  
Feng‑ying Guo ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Experimental Study ◽  
Spontaneously Hypertensive Rats ◽  
Hypertensive Rats ◽  
Kinase Inhibition ◽  
Spontaneously Hypertensive ◽  
Extracellular Signal Regulated Kinase ◽  
Extracellular Signal

An Experimental Study of Some Properties of Stuttered Words

1962 ◽  
Vol 5 (4) ◽  
pp. 387-394 ◽  
Author(s):  
Bruce Quarrington ◽  
Jerome Conway ◽  
Nathan Siegel
Keyword(s):  
Experimental Study
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