发明名称 |
OPTIMIZED BEAMFORMING FOR SATELLITE COMMUNICATION |
摘要 |
<p>A method for determining beamforming weights used onboard a satellite and ground-based beamforming weights used in a ground-based station as part of a satellite communication system. This beamforming method is a two-stage beamforming process that requires a reduced downlink bandwidth between the satellite and the ground-based station yet achieves optimal signal-to-noise ratio for bandwidth allocated for the downlink, values for the fixed onboard beamforming weights are computed to yield a maximum, formula (I) where the maximum is computed over all possible fixed weights A represented by an L x M matrix, the minimum is computed over all possible positions of remote communication devices U, and the signal-to-noise ratio (SfN) is computed for the optimal set of ground-based beamforming weights formula (II).</p> |
申请公布号 |
WO2007117912(A2) |
申请公布日期 |
2007.10.18 |
申请号 |
WO2007US64528 |
申请日期 |
2007.03.21 |
申请人 |
ITT MANUFACTURING ENTERPRISES, INC.;DRAGANOV, ALEXANDR;WEINBERG, AARON |
发明人 |
DRAGANOV, ALEXANDR;WEINBERG, AARON |
分类号 |
H04B7/15 |
主分类号 |
H04B7/15 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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