Method and device for analog-digital conversion of a complex...

H - Electricity – 03 – M

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

H03M 3/00 (2006.01)

Patent

CA 2582747

In order to convert a complex analog signal into a complex digital signal in an analog-digital conversion device having two channels, I and Q respectively, in quadrature, each comprising an input and an associated output, each output being fed back onto said associated input so as to form a first and a second feedback loops each comprising a digital-analog converter, the device comprising a complex filter with a first stage and a last stage, after sampling (508), a signal integration is performed in a first stage (501) of the filter without introducing any substantial delay. Then, an integration is performed in the last stage (502) of the filter. A substantial delay (507) is then introduced and the output signal of the last stage is converted into a digital signal over several bits. The digital signal is injected into the feedback loop (108) of said channel and the digital signal is converted into a feedback signal.

Afin de convertir un signal analogique complexe en un signal numérique complexe dans un dispositif de conversion analogique numérique possédant deux canaux, respectivement I et Q, en quadrature, chaque canal comprend une entrée et une sortie associée, chaque sortie est alimentée en retour sur cette entrée associée de façon à former une première et une seconde boucle de retour comprenant chacune un convertisseur numérique analogique, le dispositif comprend un filtre complexe avec un premier étage et un dernier étage, après échantillonnage (508), une intégration de signal étant effectuée dans un premier étage (500) du filtre sans introduction d'aucun retard sensible. Puis, une intégration est effectuée dans le dernier étage (500) du filtre. Un retard sensible (67) est ensuite introduit et le signal de sortie du dernier étage est converti en signal numérique sur plusieurs bits. Le signal numérique est injecté dans la boucle de retour (108) de ce canal et le signal numérique est converti en un signal de retour.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Method and device for analog-digital conversion of a complex... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and device for analog-digital conversion of a complex..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and device for analog-digital conversion of a complex... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1861461

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.