Arrangement and method for interference cancelling
AssigneeTelefonaktebolaget LM Ericsson (publ)
InventorsTore André, Uno Torstensson
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AssigneeTelefonaktebolaget LM Ericsson (publ)
InventorsTore André, Uno Torstensson
Estimating the term…
The present invention relates to an apparatus for cancellation of electromagnetic interferences (n), including means (3) for dividing a reference signal (sc) into a first and second signal (scl, scQ) having different phases, tow multipliers (4, 5) for each multiplying a weight coefficient to one of the phase displaced signals (scl, scQ) each and for outputting a multiplied signal each, and adder (6) for adding the two multiplied signals and for outputting a corrected reference signal (sn), and a subtracter (7) for subtracting the corrected reference signal (sn), from an input signal (sd) and for outputting an error signal (se). According to the invention different weight coefficients (l(f), Q(f)) are used for different frequencies or frequency bands (f) of the interference (n).
Arrangement for cancellation of electromagnetic interference (n), including means (3) for dividing a reference signal (sc) into a first and a second signal (scl, scQ) having different phases, two multipliers (4, 5) for each multiplying a weight coefficient to one of the phase displaced signals (scl, scQ) each and for outputting a multiplied signal each, an adder (6) for adding the two multiplied signals and for outputting a corrected reference signal (sn) and a subtracter (7) for subtracting the corrected reference signal (sn), from an input signal (sd) and for outputting an error signal (se), characterized in that the arrangement includes means (21, 22) for generating different weight coefficients (l(f), Q(f)) for different frequencies or frequency bands (f) of the interference (n).
Method of cancellation of electromagnetic interferences (n) including the following steps:
Dependencies are inferred from the claim text.