Phase 1 has been completed successfully, with the detailed definition of the experiments, the test-bed equipment and space and ground segments. Integration is on-going on this second phase. Loop-back configurations allow switching to the lab environment with channel simulators. The required hardware and the corresponding connections are displayed in a graphical overview. Phase 2 is dedicated to the platforms’ development, integration in labs and with the space segment in the operators?
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Supported Signal Generators and Modes. The project now concentrates on the test campaigns in lab and loopbaco satellite: Since existing DVB-xx standards are constantly being expanded and new standards added, these changes must be precisely incorporated in the design and functions of the instruments during their development and production.
The project consortium, led by the satellite manufacturer Astrium Satellites, includes the participation of operators Eutelsat and Telesat and other partners involved in satellite telecommunications DLR, Fraunhofer IIS and Loopbxck. In addition, new standards, or those required later, can be easily added with a software update.
Contacts Keplerlaan 1, AG.
DVB-xx tests for set-top boxes
The signal is also routed to the DUT. Looks like you’re from the United States. PXBs without the required R2C licensing will not recognize loopback configurations.
DVB-S2 Satellite Experiment | ESA’s ARTES Programmes
Application Test run and display of measurement results The test cases are first configured on the connected PC via the graphical user interface.
The key topics are: Objectives The main objective of the Loopbqck Satellite Experiment project is to perform an in-depth verification and optimisation by satellite of the many new features present in the DVB-S2 loopbxck, such as high order modulations, enhanced coding and ACM, through extensive test campaigns consisting of field trials and measurements.
The sum signal is made available to multiple instruments. The test cases have a modular structure and can be documented in easy-toreproduce, editable reports.
Master Setup Fade ext in Fader Setup. All measuring instruments are connected via LAN to the system control PC, which can be used to set and monitor the configuration of the test cases, the test run and the results. For signal generators that support loopback of markers, the PXB passes them through from input to output. Three platforms corresponding to the main profiles of the DVB-S2 standard – broadcast, interactive and professional – are set up to achieve the following objectives:.
The stream adaptation block passes down MODCOD information to the subsequent modules to indicate block size, code rate, and modulation to use for the transmission.
Most but not all modes of signal generation seen under the MXG’s Mode key are supported. The following theoretical performance gains are expected to be obtained in real satellite operation:. Most but not all modes of signal generation seen under the ESG’s Mode key are supported.
Picture quality can be assessed interactively by the user or automatically by the system. Additionally, modem control configures the modulation block to use the appropriate symbol rate.
Each test campaign by satellite lasts for 3 months. The detailed list of experiments has been defined to get the most consistent and valuable feedback for the verification of the new features of the DVB-S2 standard. Loopabck conduction, monitoring and control is automated, results are computed by post-processing tools.
Since the Master Channel is set to the IO port that’s connected to your signal generator, markers will come into the IO port, pass through the fader, and return through the same IO port as an output to the signal generator.
Test results are being analysed and reported. Lober, “Why the military needs commercial satellite technology,” Defense One, September