L.V. Cherkesova

High requirements to quality of radio-electronic means of a radio communication to provide which the land and onboard radio-electronic equipment is called, were an incitement to development of devices and devices of transfer and reception of the information, using parametrical methods of transformation of signals. One of effective ways of increase of reliability of the radio-electronic equipment intended for transformation of information is founded on application of magnetic resonant schemes. The converters including nonlinear resonant systems (parametrical zone, or pazone systems, NPS), for a long time also are widely used for formation, processing, receiving and transferring of signals. More and more wide development receives by the magnetic resonant elements applied both as modulators and demodulators, and as multiplying, differentiating, remembering devices etc. Number of the qualities inherent in magnetic elements and devices, allows them to compete to semi-conductor schemes successfully. Prospects have also mixed magnetic-transistors devices in which the best properties of magnetic and semi-conductor elements are combined. In many cases, it is represented effective to use nonlinear parametrical zone devices working on the higher harmonics, in the higher zones of instability of electromagnetic oscillations. Similar converters are cheaper, simple and reliable in comparison with existing analogues. Development and introduction new and perfection of existing methods of phase modulation and demodulation of signals depends on new circuit decisions and principles of work of applied element base of analogue and digital devices, including using the effective mechanism of parametrical excitation of oscillations in the higher zones of instability. Use of this mechanism is an actual problem by working out of receiving-and-transferring means of a radio communication. Lacks of known technical decisions are the limited functional and structural possibilities, difficulty of technical realization, and high probability of errors. At using of nonlinear parametrical zone devices as phase-sensitive elements in modulators and demodulators reception, transferring and signaling, improvement of quality that will expand functionality and scopes of devices is obviously possible. Based on resonant nonlinear parametrical zone systems working in the higher zones of instability of oscillations, it is possible to create the original communication devices intended for transfer and reception of phase-manipulated signals and signals with relative phase modulation. Similar devices can find technical application in automatics, control-and-measuring and computer facilities of different function, and can use in educational process. It is developed the parametrical zone way of highly effective modulation of signals for radio communication systems. The specified way realizes the mechanism of interactions nonlinear parametrical zone system working in the higher zones of instability of electromagnetic oscillations, with intensive external influence (rating). The device of highly effective modulation of signals is developed for the receiving-and-transferring systems containing transferring and reception tracts based on nonlinear-parametrical zone systems.