Research Article
Constructing Digitized Chaotic Time Series with a Guaranteed Enhanced Period
Table 3
National Institute of Standards and Technology (NIST) test results.
| Test | (, ) | (, ) |
| Frequency | 1.000000 | 1.000000 | Block frequency (BL = 128) | 0.596179 | 0.803613 | Cumulative sums | 0.846848 | 0.861024 | 0.846848 | 0.861024 | Runs | 0.905980 | 0.397491 | Longest run | 0.942394 | 0.873752 | Rank | 0.412787 | 0.681544 | FFT | 0.927277 | 0.065952 | Nonoverlapping template (BL = 9) | 147/147 | 147/148 | Overlapping template (BL = 9) | 0.075027 | 0.851665 | Universal | 0.585344 | 0.080354 | Approximate entropy (BL = 10) | 0.794921 | 0.143161 | Random excursions | 8/8 | 8/8 | Random excursions variant | 18/18 | 18/18 | Serial (BL = 16) | 0.455423 | 0.516985 | 0.176597 | 0.888267 | Linear complexity (BL = 500) | 0.648535 | 0.203704 |
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