AFRLDE_Atmos

MATLAB

Model = AFRLDE_Atmos(h,[ModelType],[lambda])

Description

Returns model data for absorption and scattering coefficients, and temperature as a function of altitude h for a given wavelength and atmospheric condition. Models were developed for 0 km to 11 km altitude, but can be extended to higher altitudes. COIL analysis was performed for 1.31521 microns wavelength (see reference below).

Parameters

Parameters	Description
h [vector]	Altitude of laser along propagation path (m)
ModelType [string]	(Optional, defaults to 'A') Identifier for the type of model desired. Supports 'A' (absorption), 'S' (scattering), 'E' (total extinction), and 'T' (temperature) model options
lambda [string]	(Optional, defaults to '1315') Identifier for desired laser wavelength. Supports '1064' for YAG, '1315' for COIL

Return Values

Return Values	Description
Model [vector]	Atmospheric model value for desired model type, wavelength, and atmospheric condition. 'A'-- absorption coefficient (1/m), 'S'-- scattering coefficient (1/m), 'E'-- total extinction coefficient (1/m), 'T'-- temperature (K)

References

Robert F. Walter and Siva A. Mani, "Laser Engineering and Technology Support (LETS) Advanced Tactical Laser (ATL) Power-Aperture Trade Studies, Task Order No. 0008", AFRL-DE-TR-2003-1018, 31 December 2002.