发明名称 |
METHOD AND APPARATUS FOR PERFORMING SIGNAL CORRELATION |
摘要 |
<p>A method and apparatus for performing signal correlation is described. In one example, portions of a pseudorandom reference code are multiplied with portions of a repeating code of the digital signal to produce a plurality of inner products. The plurality of inner products are then integrated over a period less than a period of the repeating code to produce a correlation result with a broadened frequency response. In another example, the digital signal is correlated with a pseudorandom reference code to produce a first correlation. The digital signal is then correlated with the pseudorandom code reference code to produce a second correlation. The first and second correlations are then used to determine first and second signal delays. The frequency shift of the digital signal is computed using a difference between the first and second signal delays over time.</p> |
申请公布号 |
WO2004086077(A1) |
申请公布日期 |
2004.10.07 |
申请号 |
WO2004US07320 |
申请日期 |
2004.03.11 |
申请人 |
US;US;US;US |
发明人 |
ABRAHAM, CHARLES;DE LA PORTE, SERGE;PODSHIVALOV, SERGI |
分类号 |
G01S1/00;G01S1/04;G06F17/15;H04B1/707;(IPC1-7):G01S1/00 |
主分类号 |
G01S1/00 |
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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