| 摘要 |
FIELD: medical technology. ^ SUBSTANCE: device contains electrodes, preamplifier, microprocessor, first comparison unit, memory unit of upper and lower levels, first threshold unit, alarm signal conditioning unit, magnetic recorder, audio alarm unit, high-frequency generator, amplitude modulator, code modulating generator, phase manipulator, power amplifier, transmitting and receiving antennas, rebuilding unit, heterodyne oscillator, frequency changer, intermediate-frequency amplifier, detector, first delay line, amplitude limiter, synchronous detector, second delay line, first summing unit, first and second measuring unit of spectral width, phase doubler, second comparison unit, second threshold unit, phase inverter, second summing unit, first and second amplitude detector and third summing unit. ^ EFFECT: reliability enhancement of radio-channel by increasing dynamic range of input signals, pass band, enhancing the ratio signal/bang with low signals accepting. ^ 3 dwg |
