by Vladimir Damgov (Bulgarian Academy of Sciences)

Contents (236k)
Preface (158k)
Introduction (876k)

The book comprises a broad panorama of phenomena occurring in four major classes of radiophysical and mechanical systems — linear, nonlinear, parametric, and nonlinear-parametric. An analytical technique for the broad circle of issues under consideration is developed. It is presented in a user-friendly form, allowing its further direct application in research practices.

Analytical methods are presented for investigating modulation-parametric and nonlinear systems, oscillating systems with periodic and almost periodic time-dependent parameters, effects of adaptive self-organization in coupled resonance systems and oscillating systems under the action of external forces, nonlinear with respect to the coordinates of excited systems.

Of an interdisciplinary nature, this volume can serve as a handbook for developing lecture courses such as Fundamentals of Nonlinear Dynamics and Theory of Nonlinear Oscillations, Theory of Nonlinear Circuits and Systems, Fundamentals of Radiophysics and Electronics, Theory of Signals and Theoretical Radiophysics, Theoretical Mechanics and Electrodynamics.

• Principle of Reversibility of Modulation-Parametric Interactions
• Controlling Equivalent Impedances of Radiophysical Systems
• Nonlinear Resonance in Radiophysical Systems. Implementation of Parametric One-Ports. Peculiarities of the Utilization of Semiconductor Structures in Radiophysical Systems
• Chaotic Oscillations in Radiophysical Systems
• Elements of the Radiophysical Systems
• Oscillating Circuit with Constant Parameters
• General Analysis of the Parametric Phenomena in Linear Oscillating Systems with Parameters Changing in Time
• Nonlinear Oscillating Systems with Parameters Changing in Time
• Grouping of Coupled Oscillating Systems in Stable Electromechanical Formations
• A Phenomenon of Excitation of Continuous Oscillations with a Discrete Set of Stable Amplitudes (“Quantized” Oscillation Excitation)