Ecological Systems and Devices Annotation << Back THE PROCESSING TECHNOLOGY OF A WEAK OPTOELECTRONIC SIGNAL APPLIED TO THE BACKSCATTER AEROLOGICAL PROBE O.V. Shtyrkov The article describes the modulation method of reception and the phased scheme of processing a weak optical-electronic signal for upper-air backscattering probe. The current/frequency converter technology is implemented using a transimpedance amplifier with a T-shaped resistive feedback, a ΣΔ-modulator and counters that implement the function of an electroncounting frequency meter. A model of oriented radiation fluxes and optical probe reception is presented, which allows determining its form factor through the combination of its geometric characteristics. The technical capabilities of the sonde allow monitoring the degree of atmospheric aerosol filling by the backscatter signal not only at altitudes of 0…30 km from the aerological sonde, but also from the meteorological rocket to altitudes of 60…65 km in the lower mesosphere. Keywords: atmospheric aerosol; backscattering; voltage/frequency converter; current/voltage converter. DOI: 10.25791/esip.09.2019.843 Contacts: - Pp. 13-25.