发明名称 |
A METHOD FOR SYMBOL SAMPLING IN A HIGH TIME DELAY SPREAD INTERFERENCE ENVIRONMENT |
摘要 |
<p>Symbol sampling in a high time delay spread interference environment includes acquiring (602) a time varying baseband waveform. The waveform has a signal amplitude that varies between one of a plurality of symbol states. The waveform is sampled (603) at a rate of m times the symbol rate. During an evaluation time, an error value is calculated (604, 606) for each of m data sample positions. Each of the error values comprises an average distance between the measured value of the waveform as indicated by the data sample and a closest known symbol value. The error values are used to create an error surface. Thereafter, the error surface is modeled as a quadratic and an optimal sample time is determined (608, 610, 612) based on finding the time location where the quadratic surface is minimum. A sinc interpolator is then used to resample the data.</p> |
申请公布号 |
CA2857789(C) |
申请公布日期 |
2015.10.13 |
申请号 |
CA20142857789 |
申请日期 |
2014.07.23 |
申请人 |
HARRIS CORPORATION |
发明人 |
HARTLESS, MAC L.;TAYLOR, RICHARD D.;WYNN, STEVE R. |
分类号 |
H04L27/26;H04B1/16;H04L25/02;H04W88/00 |
主分类号 |
H04L27/26 |
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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