Novel Technique for Real‐Time Depth‐Gated Acoustic Image Holography

1972 ◽  
Vol 20 (9) ◽  
pp. 370-371 ◽  
Author(s):  
R. L. Whitman ◽  
A. Korpel ◽  
M. Ahmed
Keyword(s):  
Real Time ◽  
Acoustic Image ◽  
Novel Technique

Real Time Acoustic Imaging by Holographic Interferometry

1980 ◽  
Vol 2 (4) ◽  
pp. 313-323 ◽  
Author(s):  
Amin Hanafy ◽  
Mauro Zambuto
Keyword(s):  
Real Time ◽  
Holographic Interferometry ◽  
Vibration Amplitude ◽  
Imaging System ◽  
Mechanical Vibration ◽  
Visual Image ◽  
Acoustic Imaging ◽  
Acoustic Image ◽  
Vibration Pattern ◽  
Amplitude Amplification

A two-step real time acoustic imaging system is presented. The system incorporates a novel acoustic image coupler which transfers an acoustical interference pattern from a water-bounded to an air-bounded surface with vibration amplitude amplification. An original technique termed step-biased real time holographic interferometry is used to convert the amplified mechanical vibration pattern, which carries all information about the insonified object, into a visual image with improved sensitivity.

scholarly journals Cooperative Spectrum Sensing Based on HML and Vector Quantization for Cognitive Radio Networks

2018 ◽  
Vol 7 (2.20) ◽  
pp. 335
Author(s):  
Shweta Alpna ◽  
Amrit Mukherjee ◽  
Amlan Datta
Keyword(s):  
Communication Network ◽  
Cognitive Radio ◽  
Real Time ◽  
Spectrum Sensing ◽  
Vector Quantization ◽  
Cooperative Spectrum Sensing ◽  
Radio Networks ◽  
Secondary Users ◽  
The Real ◽  
Novel Technique

The proposed work illustrates a novel technique for cooperative spectrum sensing in a cognitive radio (CR) network. The work includes an approach of identifying secondary users (SUs) based on Hierarchical Maximum Likelihood (HML) technique followed by Vector Quantization. Initially, the arrangement of the SUs are been observed using HML with respect to a spatial domain and then the active SUs among them are identified using VQ. The approach will not only save the energy, but the decision of the real-time and dynamic cooperative communication network becomes more accurate as we can predict the behavior of SUs movement and spectrum sensing by each individual SU at that particular  place. The results and simulations of the real-time experiment justifies with the proposed approach. 

scholarly journals NOVEL TECHNIQUE FOR AORTIC ROOT MODELING USING REAL-TIME THREE DIMENSIONAL ECHOCARDIOGRAPHY

2011 ◽  
Vol 57 (14) ◽  
pp. E708
Author(s):  
Arminder S. Jassar ◽  
Benjamin M. Jackson ◽  
Liam P. Ryan ◽  
Thomas J. Eperjesi ◽  
Martin G. St. John Sutton ◽  
...  
Keyword(s):  
Real Time ◽  
Aortic Root ◽  
Three Dimensional ◽  
Novel Technique ◽  
Dimensional Echocardiography ◽  
Three Dimensional Echocardiography
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