Method for verifying anti-scrambling efficiency of a...

Details Method for verifying anti-scrambling efficiency of a... Method for verifying anti-scrambling efficiency of a...

2008-03-18

2008-03-18

Le, Lana (Department: 2618)

Telecommunications

Interference signal transmission

C455S501000, C455S067130, C455S114300

Reexamination Certificate

active

07346310

ABSTRACT:
A method for the verification of anti-jamming in a communications system comprises several sensors or adaptive antennas, comprising at least the following steps:estimating the mean power π;^yof the output of the communications system,estimating the respective power values Pu or P′u, of a station u, the antenna noise Pa or P′a, the thermal noise PT, or P′T,estimating at least one of the following ratios:Jtot⁢/⁢Stot=(∑p=1P⁢Pp)⁢/⁢(∑u=1U⁢Pu)Jtot⁢/⁢Su=(∑p=1P⁢Pp)⁢/⁢PuJu⁢/⁢Su=(∑p=1P⁢Ppu)⁢/⁢Pucomparing at least one of the three ratios with a threshold value.

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Matsumoto Y et al: “Interference Suppression by adaptive beamforming of satellite-bornephased-array antennas” Electronic & Communications in Japan, Part I-Communications, Scripta Technica. New York, US.

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