发明名称 |
SPATIAL DIVERSITY WIRELESS COMMUNICATIONS (RADIO) RECEIVER |
摘要 |
A combiner for use in a spatial diversity radio receiver which receives multiple data signals. The combiner includes a receiving component configured for receiving strength-indicative signals, and demodulated data signals. A control signal generating component generates control signals responsive to the strength-indicative signals. A combining component combines, in linear proportions determined by the control signals, those of the demodulated data signals which are both above a predetermined strength threshold level ("combiner threshold") and differ in strength by less than a predetermined margin of preferably between 3dB and 12dB (e.g. 6dB). When more than the margin separates the signal strengths, only the strongest signal is used. Preferably, rapidly-fading signals are identified by evaluating second derivative signals of the strength-indicative signals, and weighted accordingly if a non-fading signal is available.
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申请公布号 |
WO0111801(A1) |
申请公布日期 |
2001.02.15 |
申请号 |
WO2000CA00880 |
申请日期 |
2000.07.27 |
申请人 |
DATARADIO INC. |
发明人 |
BEAUDIN, ANDRE;VALLEE, RICHARD;MARTIN, MICHEL, D. |
分类号 |
H04B7/02;H04B7/08;H04B7/26;(IPC1-7):H04B7/08 |
主分类号 |
H04B7/02 |
代理机构 |
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主权项 |
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地址 |
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