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Workspace Method sensor_responseGenericAMSU

Description

Simplified sensor setup for an AMSU-type instrument.

This function is derived from 'sensor_responseSimpleAMSU' 
but is more generalized since the number of passbands in each 
can be in the range from 1 to 4 - in order to correctly simulate
AMSU-A type sensors 

This method allows quick and simple definition of AMSU-type
sensors. Assumptions:

1. Pencil beam antenna.
2. 1-4 Passband/sidebands per channel.
3. Sideband mode "upper"
4. The channel response is rectangular.

Under these assumptions the only inputs needed are the LO positions,
the offsets from the LO, and the IF bandwidths. They are provided
in sensor_description_amsu.

Authors: Oscar Isoz

Synopsis

sensor_responseGenericAMSU(

f_grid, antenna_dim, mblock_za_grid, mblock_aa_grid, sensor_response, sensor_response_f, sensor_response_pol, sensor_response_za, sensor_response_aa, sensor_response_f_grid, sensor_response_pol_grid, sensor_response_za_grid, sensor_response_aa_grid, sensor_norm, atmosphere_dim, stokes_dim, sensor_description_amsu, spacing )

Variables

OUT	f_grid	(Vector)	The frequency grid for monochromatic pencil beam calculations.
OUT	antenna_dim	(Index)	The dimensionality of the antenna pattern (1-2).
OUT	mblock_za_grid	(Vector)	The zenith angle grid for each measurement block.
OUT	mblock_aa_grid	(Vector)	The azimuthal angle grid for each measurement block.
OUT	sensor_response	(Sparse)	The matrix modelling the total sensor response.
OUT	sensor_response_f	(Vector)	The frequencies associated with the output of sensor_response.
OUT	sensor_response_pol	(ArrayOfIndex)	The polarisation states associated with the output of sensor_response.
OUT	sensor_response_za	(Vector)	The relative zenith angles associated with the output of sensor_response.
OUT	sensor_response_aa	(Vector)	The relative azimuth angles associated with the output of sensor_response.
OUT	sensor_response_f_grid	(Vector)	The frequency grid associated with sensor_response.
OUT	sensor_response_pol_grid	(ArrayOfIndex)	The "polarisation grid" associated with sensor_response.
OUT	sensor_response_za_grid	(Vector)	The zenith angle grid associated with sensor_response.
OUT	sensor_response_aa_grid	(Vector)	The azimuth angle grid associated with sensor_response.
OUT	sensor_norm	(Index)	Flag if sensor response should be normalised or not (0 or 1).
IN	atmosphere_dim	(Index)	The atmospheric dimensionality (1-3).
IN	stokes_dim	(Index)	The dimensionality of the Stokes vector (1-4).
IN	sensor_description_amsu	(Matrix)	Sensor description for simple AMSU setup.
GIN	spacing	(Numeric, Default: .1e9)	Desired grid spacing in Hz.