发明名称 |
SCHEIBEN-BANDBREITEN-VERZERRUNGSVORHERSAGE |
摘要 |
<p>A method, and apparatus for performing the method, the method consists of the steps of: estimating a time when a dominant channel distortion occurs for each of a plurality of received test signals, wherein each of the plurality of received test signals occupies a different position in frequency in a communications medium having a given bandwidth; determining a differential group delay for the times estimated for each of the plurality of received test signals; and approximating a phase distortion of the communications medium as the differential group delay. In a variation, the method further consists of the steps of: estimating a power of each of the plurality of received test signals; determining an amplitude ripple by evaluating the power of each of the plurality of received test signals; and approximating an amplitude distortion of the communications medium as the amplitude ripple.</p> |
申请公布号 |
AT504119(T) |
申请公布日期 |
2011.04.15 |
申请号 |
AT20010932569T |
申请日期 |
2001.04.17 |
申请人 |
MOTOROLA MOBILITY, INC. |
发明人 |
SMITH, PATRICK;USKALI, ROBERT;COOPER, MICHAEL |
分类号 |
H04B3/46;H04B3/30;H04L1/00;H04L1/24 |
主分类号 |
H04B3/46 |
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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