TerrainAtm

MATLAB

[Model hh] = TerrainAtm(h,x,G,BaseModel,[p1],...,[pN],[dataDir])
[Model hh] = TerrainAtm(h,hGnd,BaseModel,[p1],...,[pN])

Description

This function returns the value of an atmospheric model evaluated for screen altitude above ground level. Must have the necessary DTED files downloaded for bilLoad.

Parameters

Parameters	Description
h [vector]	Altitude above sea level (m)
x [vector]	Normalized screen locations (m)
G [struct]	Geometry structure as from GeomStruct
hGnd [vector]	Altitude of ground (m)
BaseModel [string]	Atmospheric modeling function on path
p1,...,pN [arb]	(Optional) Parameters required for evaluating BaseModel
dataDir [string]	(Optional) Full directory location of DTED files for bilLoad. Defaults to EngagementTools/DTED

Return Values

Return Values	Description
Model [vector]	Evaluated atmospheric model for new altitudes
hh [vector]	Altitudes above terrain used for evaluating BaseModel (m)

Examples

>> Model = TerrainAtm(h,1000,'HV57')

Compute HV57 for altitudes above a fixed ground level of 1 km

>> Model = TerrainAtm(h,x,G,'HV57')

Compute HV57 for altitudes above ground for locations in input G as determined by TerrainProfiler

>> Atm = AtmStruct(G,100,'Cn2','TerrainAtm','x','G','HV57')

Create an Atm struct with HV57 for altitudes above ground for locations in input G as determined by TerrainProfiler.

>> Atm = AtmStruct(G,100,'Cn2','TerrainAtm','HV57','C:/DTED/MyLoc')

Shortcut for previous example with specification of directory for files to be loaded.

>> Atm = AtmStruct(G,100,'Cn2','TerrainAtm',1000,'HV57')

Create an Atm struct with HV57 for altitudes above a fixed ground level of 1 km.