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The Formalization of Discrete Fourier Transform in HOL

Author

Listed:
  • Zhiping Shi
  • Yupeng Zhang
  • Yong Guan
  • Liming Li
  • Jie Zhang

Abstract

Traditionally, Discrete Fourier Transform (DFT) is performed with numerical or symbolic computation, which cannot guarantee 100% accurate analysis which may be necessary for safety-critical applications. Machine theorem proving is one of the formal methods that perform accurate analysis with completeness to some extent. This paper proposes the formalization of DFT in a higher-order logic theorem prover named HOL. We propose the formal definition of DFT and verify the fundamental properties of DFT. Two case studies are presented to illustrate usefulness and correctness of the formalized DFT, including formal verifications of Fast Fourier Transform (FFT) and cosine frequency shift.

Suggested Citation

  • Zhiping Shi & Yupeng Zhang & Yong Guan & Liming Li & Jie Zhang, 2015. "The Formalization of Discrete Fourier Transform in HOL," Mathematical Problems in Engineering, Hindawi, vol. 2015, pages 1-8, October.
    • Handle: RePEc:hin:jnlmpe:687152
    DOI: 10.1155/2015/687152
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