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AreaAdditionStrehl
MATLAB
S = AreaAdditionStrehl(StrehlTerms)
Description

Combines individual Strehl ratio terms via area addition method. The area addition method combines degradations that not only reduce the peak irradiance of the beam but also contribute to a spreading of the beam, or increase in area. Thus, $1/S = [1 - N + (1/S_1 + ... + 1/S_N)]$.

Parameters
Parameters 
Description 
StrehlTerms [vector/matrix] 
Vector of individual Strehl ratio terms. If in Matrix form, the area addition is computed across the second dimension. 
Return Values
Return Values 
Description 
S [scalar/vector] 
Composite Strehl ratio of individual terms 
References

  • P. J. Berger, "Description and Assessment of the Airborne Laser Engagement (ABLE) Code," report VVA-LL-003, Revision A, Sec. 3.5.1.3.2, September 2002.

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