| 摘要 |
<p>The invention provides a method and a module for estimating a plurality of relative channel-error d<SUB>k</SUB>, G<SUB>k,</SUB> C<SUB>k</SUB> for at least one signal X<SUB>k</SUB> with respect to a reference signal X<SUB>0</SUB>. The signals X<SUB>0</SUB> and X<SUB>k</SUB> are produced by an analog-to-digital module 10 comprising parallel and time interleaved analog-to-digital converters and are received by an estimation module 20. The method is performed by said estimation module 20 and it comprises the steps of: defining Sl a function F(d<SUB>k</SUB>,G<SUB>k</SUB>,C<SUB>k</SUB>) representing a relationship between said reference signal X<SUB>0</SUB> and an arbitrary signal X<SUB>k</SUB> in said group of signals X<SUB>0</SUB>-X<SUB>N-1</SUB>; selecting S2 a first reference signal X<SUB>0</SUB> in said group of signals X<SUB>0</SUB> - X<SUB>N-1</SUB>. The method comprises the further steps of: selecting S3 a second signal X<SUB>k</SUB> from the remaining signals X<SUB>1</SUB> - X<SUB>N-1</SUB> in said group; and optimizing S4 the function F{d<SUB>k</SUB>, G<SUB>k</SUB>, C<SUB>k</SUB>) so as to obtain an estimate d<SUB>k</SUB>, G<SUB>k</SUB>, C<SUB>k</SUB> of said plurality of relative channel-error d<SUB>k</SUB>, G<SUB>k</SUB>, C<SUB>k</SUB>; repeating said further steps for each remaining signal X1 - X<SUB>N-1</SUB>.</p> |
