A Waveform Receiver for Continuous Registration of Fast Processes in Pulsar Radio Emission

This paper presents the investigation of fast processes in radio emission of pulsars, magnetars, RRATs, etc. demands a long continuous recording with high time resolution. Now pulse radio emissions from magnetosphere of different kind of neutron stars are observed in the range from decameter wave length up to 40 GHz. In the lowest one - decameter wave range it's very difficult to achieve high time resolution due to effects of scattering and dispersive delay of the pulse propagation in the interstellar medium (ISM) which lead to the broadening of pulse signal in the receiving band. In spectral receivers, real time digital receivers with fast Fourier transform (FFT) or in the filter bank analyzers time resolution is determined by the pulse broadening in the frequency band of a single digital channel. The analogue part of the receiver - amplifiers and mixers for the work under high level of interference have been worked off long ago in the equipment developed in the RINAN of Ukraine for the radio telescopes UTR-2 and URAN.