Computer Science ›› 2015, Vol. 42 ›› Issue (11): 53-55.doi: 10.11896/j.issn.1002-137X.2015.11.009

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Realization and Optimization of Cross-correlation Based on YHFT-QDSP

YANG Lin, WU Jia-zhu, HU Xiao and TIAN Xi   

  • Online:2018-11-14 Published:2018-11-14

Abstract: In the field of signal processing,cross-correlation plays an important role in finding an unknown signal’s feature.Cross-correlation is often used in areas such as image matching and particle image velocimetry.For large cross-correlation calculation and requirements of faster computing speed in real-time systems,in order to improve cross-correlation’s performance in real-time systems,we used the FFT accelerators of YHFT-QDSP to achieve 2D-FFT.Cross-correlation was realized based on YHFT-QDSP and this paper proposed some optimizations based on the size of input to improve the performance of cross-correlation.

Key words: 2D-FFT,Cross-correlation,Optimization,YHFT-QDSP

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