发明名称 |
Förfarande och intelligent, digitalt lobformningssystem med förbättradsignalkvalitet |
摘要 |
An intelligent digital beam former (10) in conjunction with a satellite based array antenna (20) provides a plurality of dynamically controllable antenna beams (52) for communication with subscriber units on earth's surface. The location of a subscriber unit (90) requesting communication services is determined and an individual antenna beams is formed and assigned to the subscriber unit. The antenna beam tracks the subscriber units as the satellite and/or the subscriber unit moves. The digital beam forming coefficients are dynamically adjusted and controlled to help maximize the signal quality of communications with the subscriber units. |
申请公布号 |
SE9703934(D0) |
申请公布日期 |
1997.10.29 |
申请号 |
SE19970003934 |
申请日期 |
1997.10.29 |
申请人 |
MOTOROLA INC |
发明人 |
RANDY LEE *TURCOTTE;STEPHEN CHIH-HUNG *MA;SERGIO *AGUIRRE |
分类号 |
G01S3/42;G01S7/28;G01S7/36;H01Q3/26;H04B1/38;H04B7/19;H04B7/195;H04B7/26;(IPC1-7):H01Q/ |
主分类号 |
G01S3/42 |
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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