H - Electricity – 04 – L
Patent
H - Electricity
04
L
H04L 25/02 (2006.01) H04B 1/10 (2006.01) H04B 1/12 (2006.01) H04L 27/26 (2006.01) E21B 47/12 (2006.01)
Patent
CA 2603536
A system and methods of transmitting information between a first location and a second location comprise transmitting a data signal and a known signal from one of the first location and the second location over a signal channel having a first noise component. A second noise component is measured in a noise channel adjacent the signal channel. The data signal, the known signal, and the first noise component are received at the other location. The first noise component is estimated based on the second noise component. The estimated noise component is combined with the received data signal and the received known signal to generate noise-cancelled received data and received known signals. The noise-cancelled received known signal is processed to obtain an estimate of the channel transfer function. The estimated channel transfer function is combined with the noise-cancelled received data signal to reconstruct the transmitted data signal.
L'invention concerne un système et des procédés permettant de transmettre des informations entre un premier emplacement et un second emplacement et consistant à transmettre un signal de données et un signal connu à partir d'un emplacement parmi les premier et second emplacements sur un canal de signal possédant un premier composant de bruit. Un second composant de bruit est mesuré dans un canal de bruit adjacent au canal de signal. Le signal de données, le signal connu et le premier composant de bruit sont reçus au niveau de l'autre emplacement. Le premier composant de bruit est estimé en fonction du second composant de bruit. Le composant de bruit estimé est combiné au signal de données reçu et au signal connu reçu, aux fins de génération de données reçues et de signaux connus reçus à bruit supprimé. Le signal connu reçu à bruit supprimé est traité de manière à obtenir une estimation de la fonction de transfert de canal. Celle-ci est combinée au signal de données reçu à bruit supprimé aux fins de reconstruction du signal de données transmis.
Aronstam Peter S.
Fincher Roger W.
Watkins Larry A.
Baker Hughes Incorporated
Sim & Mcburney
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