Information Technology Reference
In-Depth Information
-m [-b b_filter] [-p p1 p2
-t t1 t2] [-r lat long lat long]
[-x x_filter] [-c c_filter]
[-w] [-n] [-k]
[-e degradation_par_filename]
[-f channel_filter degradation_par_filename
|
|
-u channel_filter
degradation_par_filename]
[-F channel_filter degradation_par_filename]
Gives results
:
Output
>>
OUT_data_product
Execute DataElaboration:
{[L1C Data Product]
==
gdp1_ex ( [L1B Data Product], {IN_data_parameters} );}
PostConditions:
•
ESA expert by using ad-hoc viewers validates L1C product-data;
•
ESA expert compares result obtained with a L1C obtained using the same CLASS
of IN_Parameters
•
He bases his test on the set of IN_parameters given to the gdp1_ex application
during the data_elaboration.
The current L1->L1C processor is the gdp01_ex.lin (PC LINUX 2.4.19) developed
by DLR. The source code is in C language and it can be compiled by an ANSI C
compiler. It also needs a FFTW library (for Fast Fourier Transformation) to be run
(current version 2.1.3).
20.5.2.5 Testbed Update Procedure Case 1 - New FFT Library Release
FFTW_CasparTest is the new library released. This library differs from the FFTW
2.1.3. by a simple redefinition of the fftw_one signature method. This does not
impact with the core business logic of the FFT transformation but actually inhibits
the processor to be recompiled and ran. The validation process tested the cor-
rect email sending and the correct browsing, searching and retrieval of all those
elements needed to rebuild the processor with the new library. By using the
knowledge associated to the L1B
→
L1C processor he is able to access and
download:
•
Processor source code;
•
GCC compiler;
•
All related how-to's.
Once all the needed material and knowledge was downloaded, the new processor
was recompiled, re-ingested and all associated RepInfo were updated to take into
account the new version. The validation procedure wants to demonstrate the correct
process preservation by generating a new Level 1C product from an ESA certi-
fied Level 1B. The processing result is then compared to the correspondent ESA
validated Level 1C obtained from a previous processing.
