Research Article

Constructing Digitized Chaotic Time Series with a Guaranteed Enhanced Period

Table 3

National Institute of Standards and Technology (NIST) test results.

Test (, ) (, )

Frequency1.0000001.000000
Block frequency (BL = 128)0.5961790.803613
Cumulative sums0.8468480.861024
0.8468480.861024
Runs0.9059800.397491
Longest run0.9423940.873752
Rank0.4127870.681544
FFT0.9272770.065952
Nonoverlapping template (BL = 9)147/147147/148
Overlapping template (BL = 9)0.0750270.851665
Universal0.5853440.080354
Approximate entropy (BL = 10)0.7949210.143161
Random excursions8/88/8
Random excursions variant18/1818/18
Serial (BL = 16)0.4554230.516985
0.1765970.888267
Linear complexity (BL = 500)0.6485350.203704