A Backend System for Registering Narrowband Cosmic Radio Emissions

摘要

A backend system for registration narrowband cosmic radio emissions provides the computing of power spectra using the fast Fourier transform method. The amplitudes of the spectral components are calibrated by low-power noise pulses that are fed to the receiver from a modulated noise generator. A wide-band radiometric channel for calculating the unevenness of the power of noise pulses in the operating frequency band was introduced, which made it possible to increase the accuracy of measuring the amplitudes of the studied signal spectrum by approximately 4 times. This ensures the registration of weak non-stationary space radio emission.