METHOD AND DEVICE FOR DIGITAL MODULATION OF DATAS

摘要

The method and device are applied in computative equipment, in telecommunications for digital submission of information and in medical appliance production at generation of various types of signals. They enhance the quality and precision of encoding and decoding of digital data and create opportunities for implementation of various types of digital modulation, for control of the phase of the outgoing signal and for a frequency jump with any small frequency step. The method ensures that the digital data depending on the necessary type of digital modulation, navigate the variance of the phasic angle of a frequency synthesizer with a direct digital synthesis. The device consists of a microcomputer bloc (1), connected with a digital frequency synthesizer (2), with a managing logic bloc (3) and attenuator (4) through 8-bit buffer data highway and a management highway. The inlet of the managing logic bloc (3) is connected with the inlet of the device via a coaxial connection, while its outlet - with the inlet of the frequency synthesizer (2), whose outlet is connected with the inlet of the attenuator (4). The outlet of the last is connected to the outlet coupling of the device.