FIELD: physics; communication.
SUBSTANCE: invention relates to methods and systems for improving channel evaluation in a wireless communication system. The method involves reception of a wireless signal, which contains several multipath components, and obtaining N channel evaluations, where N is any positive integer greater than one. Each channel evaluation is associated with its own multipath component. Obtaining N channel evaluations involves filtering the received wireless signal using a matched filter, which is matched with the pulse characteristic of the filter of the transmitter baseband; N delays are evaluated; the output signal of the matched filter is descrambled using pseudorandom noise, through which N descrambled signals are obtained; each of the N descrambled signals is correlated with a reference signal to obtain N channel evaluations; a multipath correlation matrix is calculated; a noise covariance matrix is calculated; the said matrices are used to reduce interference effects between several multipath components in N channel evaluations; interference effects between multipath components are reduced based on N channel evaluations.
EFFECT: design of a channel evaluation method, which minimises effects of multipath interference.
19 cl, 10 dwg
