| 摘要 |
FIELD: physics, radio.SUBSTANCE: invention relates to radio engineering and can be used to adjust sensitivity and relative position of the receiving and transmitting frequency of superregenerative transceivers of aerologic radiosondes operating as part of atmospheric radiosounding systems. Disclosed is a method of adjusting output parameters of a superregenerative transceiver of a radiosonde based on optimum selection of the feedback factor of the self-oscillator of the superregenerative transceiver, load resistor, resonance frequency of the oscillatory system, characterised by that when launching the self-oscillator of the superregenerative transceiver, a mode for self-excitation with a hard character of the transient process of establishing self-oscillations is provided, average current and supply voltage of the active device of the self-oscillator of the superregenerative transceiver are stabilised, pulsed current of the control electrode - base of the transistor of the active device of the self-oscillator is controlled, thereby establishing reception frequency relative the carrier frequency of the self-oscillations of the superregenerative transceiver; by adjusting the slope of the exponentially rising leading edge and pulse duration, the required level of sensitivity of the superregenerative transceiver is set.EFFECT: providing separate adjustment of receiving and transmitting frequency and achieving maximum sensitivity of a superregenerative transceiver of an aerologic radiosonde to the request signal of a surface radar station.8 dwg |
