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Machine translation
1. (WO1981001087) ADAPTIVE CROSS-POLARIZATION INTERFERENCE CANCELLATION ARRANGEMENTS
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1981/001087    International Application No.:    PCT/US1980/001216
Publication Date: 16.04.1981 International Filing Date: 22.09.1980
IPC:
H04B 7/00 (2006.01)
Applicants:
Inventors:
Priority Data:
81366 03.10.1979 US
Title (EN) ADAPTIVE CROSS-POLARIZATION INTERFERENCE CANCELLATION ARRANGEMENTS
(FR) DISPOSITIF D'ADAPTATION D'ANNULATION D'INTERFERENCES DE TRANSPOLARISATION
Abstract: front page image
(EN)Adaptive cross-polarization cancellation arrangement where a desired polarized signal (102) and an interfering orthogonally polarized signal (104), including cross-polarization components, are concurrently received at an antenna (100). In the present arrangement, the orthogonally polarized components of the received signal are separated and transmitted along separate paths (106, 107) and recombined after the phase and amplitude of the separated polarized interfering signal sample has been appropriately adjusted for maximally cancelling cross-polarization components thereof in the other path. A feedback path includes circuitry (120, 123, 124) for obtaining a sample of any remaining interfering signal in the recombined output signal, generating a signal representative of the power envelope of such sample, and then generating appropriate control signals (126, 127) in response to such representative power envelope signal to provide improved adjustment of the amplitude and phase of the separated polarized interfering signal sample.
(FR)Dispositif d'adaptation d'annulation de transpolarisation ou un signal polarise desire (102) et un signal polarise interferent orthogonalement (104), comprenant des composants de transpolarisation, sont recus simultanement sur une antenne (100). Dans le present dispositif, les composants polarises orthogonalement du signal recu sont separes et transmis le long de chemins separes (106, 107) et recombines apres que la phase et l'amplitude de l'echantillon de signal interferent, separe, polarise aient ete reglees de maniere appropriee pour annuler au maximum ses composants de transpolarisation dans l'autre chemin. Un chemin de reaction comprend un reseau de circuit (120, 123, 124) pour obtenir un echantillon d'un signal restant d'interference dans le signal de sortie recombine, produire un signal representant l'enveloppe de puissance d'un tel echantillon, et produire des signaux de commande appropries (126, 127) en reponse a ce signal representatif de l'enveloppe de puissance pour effectuer un ajustement ameliore de l'amplitude et de la phase de l'echantillon de signal separe d'interference, polarise.
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)