Ladar imaging analytical approach using both outward and return path atmospheric turbulence phase-screens

2012 ◽  
Author(s):  
Douglas G. Youmans
Keyword(s):  
Atmospheric Turbulence ◽  
Analytical Approach ◽  
Return Path ◽  
Phase Screens

scholarly journals Production of phase screens for simulation of atmospheric turbulence

2012 ◽  
Vol 51 (36) ◽  
pp. 8769 ◽  
Author(s):  
Rachel Rampy ◽  
Don Gavel ◽  
Daren Dillon ◽  
Sandrine Thomas
Keyword(s):  
Atmospheric Turbulence ◽  
Phase Screens

New method of fabricating phase screens for simulated atmospheric turbulence

2010 ◽  
Author(s):  
Rachel Rampy ◽  
Donald Gavel ◽  
Daren Dillon ◽  
Sandrine Thomas
Keyword(s):  
Atmospheric Turbulence ◽  
New Method ◽  
Phase Screens

Simulation of atmospheric turbulence layers with phase screens by JAVA

2007 ◽  
Author(s):  
Xiaofang Zhang ◽  
Wenqin Chen ◽  
Xin Yu ◽  
Jixiang Yan
Keyword(s):  
Atmospheric Turbulence ◽  
Phase Screens

scholarly journals Analytical approach of an FSO Link with alamouti- type STBC considering weak atmospheric turbulence

2018 ◽  
Vol 53 (3) ◽  
pp. 205-210
Author(s):  
MS Islam ◽  
M Morshed ◽  
RC Roy ◽  
MHA Begum
Keyword(s):  
Fading Channels ◽  
Atmospheric Turbulence ◽  
Analytical Approach ◽  
Direct Detection ◽  
Maximal Ratio Combining ◽  
Free Space Optical ◽  
Hardware Complexity ◽  
Receiver Diversity ◽  
Log Normal ◽  
Ber Performance

An analytical approach is proposed to evaluate the bit error rate (BER) performance of a direct detection on-off keying (OOK) free space optical link over log-normal atmospheric turbulence-induced fading channels based on modified Alamouti code presented by Simon and Vilnrotter and maximal ratio combining (MRC) at the receiver. Simulations show that due to coding and diversity at the receiver, a significant improvement in the BER performance is obtained at a given BER. For diversity order of 2 in both transmitter and in receiver, the amount of BER improvement is 6.6dB at BER 10-5. Further increment of the receiver diversity from 2 to 4 gives additional 3dB improvement at the same BER. A drastic improvement of the BER performance is also possible for increasing number of receiver diversity which may increase hardware complexity. Simulation results are demonstrated to confirm the analytical results.Bangladesh J. Sci. Ind. Res.53(3), 205-210, 2018

The Dynamics of TAT Process

2014 ◽  
Vol 35 (2) ◽  
pp. 103-133 ◽  
Author(s):  
Benoît Verdon ◽  
Catherine Chabert ◽  
Catherine Azoulay ◽  
Michèle Emmanuelli ◽  
Françoise Neau ◽  
...  
Keyword(s):  
Defense Mechanisms ◽  
Analytical Approach ◽  
Therapeutic Process ◽  
Practice Research ◽  
Rorschach Test ◽  
Mental Functioning ◽  
Projective Tests ◽  
The Subject ◽  
Latent Content ◽  
Rigorous Method

After many years of clinical practice, research and the teaching of projective tests, Shentoub and her colleagues (Debray, Brelet, Chabert & al.) put forward an original and rigorous method of analysis and interpretation of the TAT protocols in terms of psychoanalysis and clinical psychopathology. They developed the TAT process theory in order to understand how the subject builds a narrative. Our article will emphasize the source of the analytical approach developed by V. Shentoub in the 1950s to current research; the necessity of marking the boundary between the manifest and latent content in the cards; the procedure for analyzing the narrative, supported by an analysis sheet for understanding the stories' structure and identifying the defense mechanisms; and how developing hypotheses about how the mental functions are organized, as well as their potential psychopathological characteristics; and the formulation of a diagnosis in psychodynamic terms. In conjunction with the analysis and interpretation of the Rorschach test, this approach allows us to develop an overview of the subject's mental functioning, taking into account both the psychopathological elements that may threaten the subject and the potential for a therapeutic process. We will illustrate this by comparing neurotic, borderline, and psychotic personalities.

Sign in / Sign up

Export Citation Format

Share Document