Microwave Radar and Radiometric Remote Sensing

Code 6.2: Emissivity of Two-Layer Composite

Code Name: emissivity_TwoLayerComposite.m

Description: Code computes emissivity into air (with ε₁ =1) by a two-layer composite (such as the inset of Fig. 6-22).

Input Variables:

ε₂ = ε₂ ^' - jε₂ ^'':	Dielectric constant of middle layer (unitless)
ε₃ = ε₃ ^' - jε₃ ^'':	Dielectric constant of bottom layer (unitless)
Θ₁:	Incidence angle in medium 1 (degrees)
f:	frequency in GHz
d:	Thickness of middle layer (m)

Output Products:

e^P (Θ₁):	Emissivity at angle Θ₁ for polarization p
Plot:	e^P(Θ₁) as a function of d

Book Reference: Section 6-7.5 and Eq. (6.111).