Method of correlation reception of ultrawideband information signals

Abstract

The extraction of the useful signal against the background of noise is carried out by correlating the received and reference signals. The correlator performs convolution of the received signal with the reference one. It is an ideal detector for determining the time shifts of the received pulses relative to the reference. So, when the unit is received, the correlation function is +1, and when it is 0, it takes on the value -1. In any other cases, the correlation function is 0. Accumulation of a certain number of ultra-short pulses in the receiver's correlator, encoding each of the information bits, makes it possible to significantly increase the signal-to-noise ratio, providing the ability to transmit information in a wide frequency range significantly below the white noise level, while ensuring the requirements for noise immunity of mobile devices.