The Research And Realization Of Telemetry And Telecontrol Communication System Based On SDR

PCM-FM communication system has high precision and strong anti-interference ability,which is widely used in remote control and telemetry communication system.The current communication system is moving towards on generalization, diversified directions,traditional remote control and telemetry system has been difficult to meet these requirements due to it’s hardware design and architecture,our research combining telemetry communication platform with PCI bus interface,we design and realized a telemetry communication system platform which could real-time interaction with the host computer.This paper studies several key technologies of PCM-FM transceiver, study focus on two common frequency discriminator algorithm,then makes a comparative analysis of them. Introduces the telemetry communication system hardware platform, then gives description of interface configuration process including PCI9056chip. Introduces key technology of SDR,completed the design of the telemetry communication system on the basis of SDR and given transceiver parameters, and then introduces the design process of some main modules of the system with simulation and test results,complete the whole system debugging by using the ChipScope tool. At the end of the paper introduced the PCI interface driver development flow,then gives the calculating principle about PC symbol judgment and frame synchronization. Joint test on the entire system, The determined results showed that the system not only achieved the anticipated target and also with high sensitivity.