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The Research and Implementation of the FPGA-based Compression Algorithm

Author: TianYuan
Tutor: WangQuan
School: Xi'an University of Electronic Science and Technology
Course: Computer System Architecture
Keywords: Data compression FPGA LZ77 algorithm USB
CLC: TP301.6
Type: Master's thesis
Year: 2010
Downloads: 148
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Abstract


With the development of information technology, has become increasingly dependent on data, data storage and transmission requirements are also getting higher and higher compression. In some of the more sophisticated real-time systems, such as the space storage system and the signal transmission systems of meteorological satellite, software data compression algorithms have been totally unable to meet the demand, data compression algorithms implemented in hardware inevitable.In this paper, use the LZ77 algorithm studied the implementation of FPGA-based approach.The paper described the software compression algorithms hardware-oriented research background and necessity; use the LZ77 compression algorithm as the main line, for real-time requirements, discusses the LZ77 sliding window algorithm selection, the transform of the output data and string matching of the hardware implementation; discussion of the interface control, RAM control, string matching and the entire compression process control use the FPGA implementations. Finally make a FPGA-based compression system successfully.Paper gives the method of compression algorithm verification and validation of circuit design methods. Experimental results show that, compared with the software implementation, the hardware-base method’s time efficiency has been significantly improved, and able to basically meet the requirements of real-time.

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CLC: > Industrial Technology > Automation technology,computer technology > Computing technology,computer technology > General issues > Theories, methods > Algorithm Theory
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