发明名称 |
SYNTHESIZING COHERENT CORRELATION SUMS AT ONE OR MULTIPLE CARRIER FREQUENCIES USING CORRELATION SUMS CALCULATED AT A COARSE SET OF FREQUENCIES |
摘要 |
Techniques are provided for synthesizing a long coherent I and Q correlation integral at a particular frequency by synthetically combining a sequence of shorter correlation integrals at the same or different frequency. Techniques are also provided for acquiring a carrier-modulated signal with an unknown shift of the carrier frequency, and possibly some additional unknown signal parameters. These techniques involve synthesizing coherent correlation sums at a fine frequency resolution, using coherent correlation sums that are calculated at a coarse frequency resolution. This approach allows for coherent processing of the received signal over an arbitrarily long time interval, while avoiding the excessive computational requirements of traditional methods.
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申请公布号 |
US2007002978(A1) |
申请公布日期 |
2007.01.04 |
申请号 |
US20060470394 |
申请日期 |
2006.09.06 |
申请人 |
SAHAI ANANT;TSITSKLIS JOHN |
发明人 |
SAHAI ANANT;TSITSKLIS JOHN |
分类号 |
H04L27/06;G01S1/00;G06F17/15 |
主分类号 |
H04L27/06 |
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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