Interference reduction method

摘要

This interference reduction method in a receiver (2) comprising at least two antennas (4, 6), each receiving a signal transmitted through a radio propagation channel, comprises the following steps: —weighting (20) of each of the signals received with a weighting vector associated respectively with a respective antenna of the receiver; —combination (22) of the weighted signals received to obtain a combined received signal; —weighting (24) of a reference signal with another weighting vector; —comparison (26) of the combined received signal and the weighted reference signal to obtain an error; and —determination (28) of the weighting vectors with the help of the maximum a posteriori criterion by maximizing the probability of realization of the said weighting vectors conditionally with the error obtained.

主权项

1. A method for reducing interference in a receiver comprising at least two antennas each receiving a signal transmitted through an associated radio propagation channel, the received signals corresponding with the same emitted signal comprising frames of symbols distributed in time and frequency, among which some symbols, called pilot symbols, are known to the receiver, where the said method comprises the following steps:
weighting of each of the signals received with a weighting vector associated respectively with a respective antenna of the receiver; combination of the weighted signals received to obtain a combined received signal; weighting of a reference signal comprising pilot symbols with another weighting vector; comparison of the combined received signal and the weighted reference signal to obtain an error; and determination of the weighting vectors using a maximum a posteriori criterion by maximising the probability of realisation of the said weighting vectors conditionally with the error obtained.