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In this paper, we propose a chaotic-based random stepped frequency radar (CRSFR) applicable to wideband imaging. CRSFR provides faster matched processing via sequence rearrangement of AD sampling as compared with conventional random stepped frequency radar (RSFR). Our analysis shows that the presented radar system not only achieves a rapid matched filtering for range profiles without random noise...
A novel approach for generating real tetrapterous butterfly attractors from Lorenz system is proposed in this paper. The key strategy is to create two additional index-2 equilibrium points by introducing a single pulse function to the third equation of Lorenz system. The evolutions of the strange tetrapterous butterfly attractor are investigated. Furthermore, two coexisting dipterous attractors under...
Noise-like waveform and strange attractor are considered as important characteristics of chaos. In this paper, a new chaotic system with a novel attractor looking like limit cycle, which generates a sine-like output waveform, is found. The existence of chaotic signal with sine-like waveform is further investigated by employing several numerical tools and verified by simulating an experimental circuit.
This paper develops a synchronization-based scheme for calculating ambiguity function (AF) of a wideband chaotic signal. In the direct implementation, the formulation of the time-scaling chaotic signal takes much computational load and its accuracy determines the quality of the calculated AF diagrams. By exploring the generation of the chaotic signal, the impulsive synchronization theory can be used...
This paper develops a synchronization-based scheme for calculating auto/cross ambiguity functions (AF/CAF) of the wide-band chaotic signals. In the direct implementation, the formulation of the time-scaling chaotic signals takes much computational load and its accuracy determines the quality of the calculated AF/CAF diagrams. By exploring the generation of the chaotic signal, it is found in this paper...
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