4.6 Article

An Entropy Measure of Non-Stationary Processes

Journal

ENTROPY
Volume 16, Issue 3, Pages 1493-1500

Publisher

MDPI
DOI: 10.3390/e16031493

Keywords

non-stationary process; entropy; maximum entropy; cryptography

Funding

  1. National Natural Science Foundation of China [60773192]
  2. National High-Tech Research and Development Program of China (863) [2006AA01Z426]
  3. 12th Five-year National Code Development Fund [MMJJ201102016]

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Shannon's source entropy formula is not appropriate to measure the uncertainty of non-stationary processes. In this paper, we propose a new entropy measure for non-stationary processes, which is greater than or equal to Shannon's source entropy. The maximum entropy of the non-stationary process has been considered, and it can be used as a design guideline in cryptography.

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