Chaotic signals are useful in two different levels in audio synthesis: as sound material or control structure. Patching languages such as Pd, Max/MSP, and jMAX provide easier mechanisms for generating chaotic structures at control level. We can generate deterministic chaotic signals either by finding numerical solutions to differential equations or by using first return maps. While generating t...

It is well known that chaotic signals are characterized by having a positive Lyapunov exponent and a noise-like power spectrum [Young, 1983]. These features have motivated researchers to investigate using chaotic signals in various applications and particularly in wide-band communication systems [Kolumbán et al., 1998; Setti et al., 1999]. In order to be compatible with other system elements, i...

Development of the effective sources of ultrawideband signals is stimulated by much interest to ultrawideband communication technologies. Chaotic oscillators can play the role of such sources. In the report structure of the microwave ring oscillator capable to generate ultrawideband microwave chaotic signal with uniform power spectral density, is proposed. Its evolution from distributed element...

This paper addresses the problem of noise reduction for chaotic signals. The existing approaches often face the trade-off between distorting original chaotic signal and holding relatively more noise in filtered signal. In this paper, a new method for analyzing signal's deterministic degree is given based on extensive analysis of local correlation of the chaotic dynamic system. A parameter D bei...

This paper throws light on chaotic shift keying-based speech encryption and decryption method. In this method, the input speech signals are sampled and its values are segmented into four levels, namely L0, L1, L2, and L3. Each level of sampled values is permuted using four chaotic generators such as logistic map, tent map, quadratic map, and Bernoulli’s map. A chaotic shift keying mechanism ass...

Applications of multimedia broadcasting and mobile communication are the new generation communication networks which demands for more number of users to be serviced through the network every day. For these multiuser applications transmitted data security is very important in wireless communication network. So in this paper a methodology for the transmission of data using chaotic encryption algo...

Understanding how the cell uses a limited set of proteins to transduce very different signals into specific cellular responses is a central goal of cell biology and signal transduction disciplines. Although multifunctionality in signal transduction is widespread, the mechanisms that allow differential modes of signaling in multifunctional signaling pathways are not well defined. In legume plant...

This paper investigates the problem of designing feedback controllers for regulating the output of the simplified Lorenz system, which is a novel chaotic system recently discovered by K.H. Sun and J.C. Sprott (2009). The simplified Lorenz chaotic system is a three-dimensional chaotic system with one bifurcation parameter and it includes the Lorenz attractor (1963) as a special case. In this pap...

This paper proposes the chaos control and the modified projective synchronization methods for chaotic dissipative gyroscope systems. Because of the nonlinear terms of the gyroscope system, the system exhibits chaotic motions. Occasionally, the extreme sensitivity to initial states in a system operating in chaotic mode can be very destructive to the system because of unpredictable behavior. In o...

Accurate and robust image motion detection has been of substantial interest in the image processing and computer vision communities. Unfortunately, no single motion detection algorithm has been universally superior, yet biological vision systems are adept at motion detection. Recent research in neural signals have shown biological neural systems are highly responsive to signals which appear to ...