A nuller with no satellite signal distortion

H - Electricity – 04 – B

Patent

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Details

H04B 15/00 (2006.01) H04B 7/185 (2006.01) H04L 1/06 (2006.01) H04L 25/03 (2006.01)

Patent

CA 2471955

Interference in a GPS receiver in minimized while preserving the GPS satellite signal in a system having N antenna elements for receiving the interference signal and the satellite signal and multiple tapped delay line structures connected to the antenna elements (160) for filtering the signals received by the antenna elements based a plurality of filter coefficients. The filter coefficients are determined such that the plurality of filter coefficients equals Rxx-1C~CHRXX-1C~-1F wherein CHW = F, where w equals the plurality of filter coefficients, Rxx equals a covariance matrix, and C and F are determined to preserve a frequency spectrum of the GPS satellite signal.

On minimise le brouillage dans un récepteur GPS tout en préservant le signal satellitaire GPS dans un système qui possède N éléments d'antenne destinés à recevoir le signal de brouillage et le signal satelitaire et de multiples structures de ligne à retard à dérivations connectées à ces éléments d'antenne de façon à filtrer les signaux reçus par ces éléments d'antenne à partir d'une pluralité de coefficients de filtrage. Ces coefficients de filtrage sont déterminés de façon que la pluralité de coefficients de filtrage soit égale à R ., avec C?h¿ .= F, w étant égal à la pluralité des coefficients de filtrage, R¿xx? étant égal à une matrice de covariance et C et F étant déterminés de façon à préserver un spectre de fréquence du signal satellitaire GPS.

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