<![CDATA[Real time multi-channel sliding correlation processing is widely applied in underwater communication system or underwater positioning system. The traditional implementation in FPGA always employs parallel method which reduces the design work, however wastes considerable FPGA resources. This paper described a new kind of SOPC structure which based on AVALON bus, taken NIOS CPU as system controller, DMA used for accurate data transmission between computing units. This kind of time-multiplexed processing structure improved controlling flexibility and saved FPGA resources. System stability was proved by lake experiments. DOI: http://dx.doi.org/10.11591/telkomnika.v11i3.2307]]>
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