Signal decoding unit based on FPGA (Field Programmable Gate Array) and DSP (Digital Signal Processor) and realization method for signal decoding unit based on FPGA and DSP

Abstract

The invention provides a signal decoding unit based on a FPGA (Field Programmable Gate Array) and a DSP (Digital Signal Processor) and a realization method for the signal decoding unit based on the FPGA and the DSP. The signal decoding unit comprises a signal decoding board card, a FPGA module, a PCI interface chip, a DSP module and an optical communication module. The FPGA module, the PCI interface chip, the DSP module and the optical communication module are arranged on the signal decoding board card. The FPGA module is connected with the PCI interface chip and the DSP module through a bus. The PCI interface chip is connected to a display console through a PCI bus. The DSP module is connected to an external signal processing board through a LINK port. The FPGA module receives and sends an optical signal through the optical communication module. The system adopted by the method is simple in structure, a large-scale integrated chip is adopted, multiple-channel processing is adopted, the system design is simplified, and advantages of long transmission distance, strong anti-interference capability, low storage resource consumption, stable and reliable data format conversion, high transmission efficiency and the like are achieved.

Description

technical field [0001] The invention relates to the field of signal decoding, in particular to a signal decoding unit based on an FPGA and a DSP platform and an implementation method thereof. Background technique [0002] With the development of digital systems, long-distance transmission of large-capacity data and effective encoding and decoding of data have become important issues in system design. With the signal decoding unit as the core of data transmission, Ethernet technology and photoelectric conversion modules are used to build an Ethernet interface hardware platform suitable for large-scale data transmission, which can not only improve communication quality, but also simplify system wiring. A good solution with wide application prospects. [0003] The commonly used general-purpose signal decoding unit has a low transmission rate and does not have the ability to decode multi-channel signals. However, when the complexity of project design increases and data integrat...

AI Technical Summary

Problems solved by technology

In the past, the ATM protocol was often used for the transmission of this decoded signal. Although it also uses optical fiber, the rate is relatively slow and the interface protocol is relatively complicated, which are unfavorable factors for signal decoding and data transmission of multi-extension systems.

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