期刊
MATHEMATICS
卷 9, 期 15, 页码 -出版社
MDPI
DOI: 10.3390/math9151821
关键词
chaos; pseudo-random bit generator; path planning; chaotic mobile robot; UAV
类别
This work presents a one-dimensional chaotic map with a simple structure and three parameters, studying its dynamical behavior, pseudorandom bit generation, and chaotic path planning applications.Numerical simulations show that the coverage percentage converges exponentially to 100% as the number of iterations increases, with discrete motion adapted to smooth motion using B-Spline curves.
This work proposes a one-dimensional chaotic map with a simple structure and three parameters. The phase portraits, bifurcation diagrams, and Lyapunov exponent diagrams are first plotted to study the dynamical behavior of the map. It is seen that the map exhibits areas of constant chaos with respect to all parameters. This map is then applied to the problem of pseudo-random bit generation using a simple technique to generate four bits per iteration. It is shown that the algorithm passes all statistical NIST and ENT tests, as well as shows low correlation and an acceptable key space. The generated bitstream is applied to the problem of chaotic path planning, for an autonomous robot or generally an unmanned aerial vehicle (UAV) exploring a given 3D area. The aim is to ensure efficient area coverage, while also maintaining an unpredictable motion. Numerical simulations were performed to evaluate the performance of the path planning strategy, and it is shown that the coverage percentage converges exponentially to 100% as the number of iterations increases. The discrete motion is also adapted to a smooth one through the use of B-Spline curves.
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