am is a tool for radiative transfer computations at microwave to
submillimeter wavelengths. Spectra which can be computed with am
include thermal emission, absorption, transmission, and excess delay. The
program can modify computed spectra to model the response of spectrometers and
receiving systems, and can compute Jacobians of output spectra differentiated
with respect to selected model parameters. Measured spectra can be fitted
using a simple scheme for flagging model parameters as fit variables.
The primary application area for am is in radio astronomy, involving
terrestrial propagation paths between ground and sky. The program can also be
applied to a variety of other radiative transfer problems, and has been used
for applications ranging from laboratory receiver testing to radio spectrum
latest version of am.
#152 is the manual for am. (To cite am, please use the
for the manual.)
The am cookbook is a collection
of application example files.
Browse the am source code here.