| The rocket carry telemetry simulator is a kind of signal generator used to produce automatic emulate signal data flows for the front subsystems, in order that they can debug themselves. And the PCM telemetry signal of some special frame structure is usually needed.In this thesis, we firstly introduce the rocket carry telemetry system architecture. Then the base band PCM data flow is analyzed according with GJB21.2A, especially the frame of the data flow. Finally, the scheme of the PCM telemetry signal of changeable frame structure is presented based on the special requirements of telemetry system. According to the scheme , we have accomplished the design and the realization of the typical electrocircuits with FPGA. |
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