Design Of Multi-standard Communication Signal Processing Module Based On Multi-core DSP

Military communication systems place ever-increasing demands on the multi-mode compatibility of radio stations.Currently,most radio stations are tailored to a specific purpose and can only be communicated using a specific mode.Design and implement a radio station with good scalability and compatibility to realize parallel processing and fast switching of multiple communication systems,which has important application value.The thesis designs a multi-mode communication signal processing module based on TMS320C6678 multi-core processor,which realizes compatible communication of different standard radio stations and simplifies the hardware structure of traditional radio stations.Multi-core parallel processing capability enables multiple modulation and demodulation mode to be executed concurrently in the system.The dynamic reconfiguration capability enables each core of the processor to quickly switch between different modulation and demodulation modes.The thesis gives the overall scheme of multi-mode communication signal processing module based on multi-core DSP,and the design of each functional module.In this thesis,the master-slave mode is used to implement multi-core and multi-mode concurrent execution.And the MessageQ method is selected to realize multi-core communication.The MessageQ method implements inter-core data transmission through data address delivery,which does not require a large amount of data movement.The local and remote dynamic modes are used to reconstruct different modulation and demodulation algorithms.The modulation mode is automatically identified by wavelet transform.The reconfigurable solution of this thesis overcomes the limitations of the existing software reconfiguration framework of multi-core DSP.It can replace the overall software framework on the core and realize the complete update of the software in the true sense.The thesis tests parallel processing and reconfigurable using ASK,FSK,PSK modulation and demodulation algorithms.The test results show that the system realizes the parallel processing of multi-mode,and supports two dynamic reconfiguration methods,local and remote.It meets the scalability and compatibility requirements of radio stations.