| 摘要 |
FIELD: radio engineering, communication.SUBSTANCE: apparatus includes a transmitting optical unit, a fibre-optic splitter with N outputs, N binary fibre-optic structures, (N-1) fibre-optic delay lines, a fibre-optic connector with N inputs, an optical amplifier, a receiving optical unit, a band-pass filter, an amplitude limiter, an electronic amplifier and a low-pass filter.EFFECT: high rate of frequency modulation, which is equivalent to reducing the duration of a chirp signal while maintaining high values of the radio signal base.15 dwg |
