Design and implementation of high-speed spectrum data processing system based on FPGA

Design and implementation of high-speed spectrum data processing system based on FPGA

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In order to realize the fast restoration of spectral distribution of static interference system, a fast spectral data sophie allport zebra processing system is designed based on FPGA.Through the FPGA hardware design, the high-speed acquisition and rapid spectral data inversion calculations of the CCD data have been completed.According to the characteristics of the spatial domain to the frequency domain of static interference fringes, the corresponding drive module is designed.Through simulation analysis, it verified its high efficiency.We chose to use three different types of data for comparison.

The results show that 8 bit is the fastest, but its spectral contrast is the worst; The 12 bit contrast is best, but it takes longer.In a comprehensive comparison, 10 bit are selected, and its spectral amplitude contrast and processing speed are both moderate.Finally, an FPGA spectral restoration system was constructed.The static interference fringe obtained by the 980 nm laser incident static interference module was tested.The same set of data also uses MATLAB for spectral inversion.

The comparison results show that g35 coupe fender the center wavelength position, amplitude and half-width of the system test data are in accordance with the MATLAB simulation data.