发明名称 AntennestrÕlemönster med brede nullpunkt
摘要 <p>An enhanced digital beamformer (EDBF) (210, FIG. 2) is provided for use in a transceiver subsystem (200, FIG. 2) for mitigating interference and increasing the frequency reuse factor in communication systems. The EDBF is used to produce wide nulls (520, FIG. 5) in at least one steerable antenna beam pattern. By directing wide nulls at undesired signals, the EDBF provides a more efficient processing of antenna beam patterns in communication systems. The EDBF is used in geostationary satellites, non-geostationary satellites, and terrestrial communication devices. The EDBF combines a unique algorithm, a special processor, and an array antenna to significantly improve the capacity of current and future communication systems, while remaining compatible with existing modulation techniques.</p>
申请公布号 NO993268(A) 申请公布日期 1999.08.31
申请号 NO19990003268 申请日期 1999.07.01
申请人 MOTOROLA INC 发明人 DANIEL, SAM MORDOCHAI;MA, STEPHEN C.;WARBLE, KEITH V.;PAN, SHAO-WEI;WANG, SHAY-PING
分类号 G01S7/28;H01Q3/26;H04B7/10;H04B7/185;H04B7/204;H04W28/04;H04W84/06;(IPC1-7):H01Q3/26 主分类号 G01S7/28
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