DVB LOOPBACK DRIVER

The signal is also routed to the DUT. A diagram showing our hardware configuration is captured in Figure 2. Contacts Keplerlaan 1, AG. Phase 1 activities are focused on the definition of the experiments on the three profiles. 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. The focus of current efforts is use of non linear pre-compensation tests of high-order modulation at 16APSK and 32APSK operation at near transponder saturation levels. Taking into account outcomes from previous analysis, simulations and studies, as well as operators experience feedback and perspectives on DVB-S2, the main test areas are:.

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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.

Taking into account outcomes from previous analysis, simulations and studies, as well as operators experience feedback and perspectives on DVB-S2, the main test areas are: In addition, new standards, or those required later, can be dvh added with a software update.

Astrium Satellites, 31 rue des Cosmonautes. Join Our Newsletter Follow us on Twitter. On average, the E2IQ performance gap is 0.

After the test run is completed, the results are displayed in reports which can be saved as well as evaluated and exported in a variety of ways. The second and final part of test campaign will use commercial grade equipment with advanced Quality of Service traffic shaping device controlled by the network management system upgraded for ACM operation. The three test platforms are based on the DVB-S2 end-to-end communication chains that include gateway hubs and user equipment receivers, set-top boxesand the operator’s space and ground segments.

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Loop-back configurations allow switching to the lab environment with channel simulators. A block diagram of our E2IQ core is shown in Lopback 3.

DVB-xx tests for set-top boxes | Application Card | Rohde & Schwarz

The outcome of the experiments loopack concern primarily the operators wishing to move to DVB-S2 for their applications HDTV, interactive and professional services, etc. The key topics are: Looks like you’re from the United States.

Contact National Delegations Newsletter Register. 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.

Taking into account outcomes from previous analysis, simulations and studies, as well as operators experience feedback and perspectives on DVB-S2, the main test areas are:. Our E2IQ design comprises two main parts: The stream adaptation block passes loopbaci MODCOD information to the subsequent modules to indicate block size, code rate, and modulation to use for the transmission.

PXBs without the required R2C licensing will not recognize loopback configurations. Current status Phase 1 has been completed successfully, with the detailed definition of the experiments, the test-bed equipment and space and ground segments. Picture quality can be assessed interactively by the user or automatically by the system. Phase 1 has been completed successfully, with the detailed definition of the experiments, the test-bed equipment and space and ground segments.

[linux-dvb] AW: Re: Software-only Loopback DVB

Test conduction, monitoring and control is automated, results are computed by post-processing tools. Driven by the host, the purpose of the control flow is to configure and calibrate the encoder, modulator, and RF front end.

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The digital baseband IQ signals to be faded are created on a vector signal generator using internal signal creation personalities, Signal Studio applications, or custom waveforms created by mathematical modeling tools. Three platforms corresponding to the main profiles of the Lopback standard – broadcast, interactive and professional – are set up to achieve the following objectives: 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.

Skip to main content. Documentation Documentation may be requested. Using Markers with Loopback Fading. Most but not all modes of signal generation seen under the MXG’s Mode key are supported.

The experiment’s feedback should also be interesting for standardisation groups, space agencies and institutions, academics and equipment manufacturers working on the DVB-S2 subject. Through its own header, the PL framer creates the start of frame followed by information used to decode the entire FEC frame.

Leveraging the ZPU, the modem control block is able to perform algorithms required for ACM, gain control, and other real-time functions. Demonstrate liopback the new features of the DVB-S2 standard are functionally working by satellite for a large number of configurations and applications.