发明名称 |
FREQUENCY DISCRIMINATION IN A SPREAD SPECTRUM SIGNAL PROCESSING SYSTEM. |
摘要 |
<p>The actual carrier frequency of a spread spectrum signal is found by tuning a pair of correlators to a pair of search frequencies and then correlating the spread spectrum signal against one or more reference signals to produce a pair of correlation magnitude values. The ratio of the difference between the correlation magnitude values to the sum of the correlation magnitude values determines the offset between the actual carrier frequency and an estimated carrier frequency.</p> |
申请公布号 |
MXPA02001027(A) |
申请公布日期 |
2003.10.14 |
申请号 |
MX2002PA01027 |
申请日期 |
2000.07.28 |
申请人 |
SCHLUMBERGER RESOURCE MANAGEMENT SERVICES, INC. |
发明人 |
ROBERT K. FROELICH |
分类号 |
H04B1/707;H04B1/7075;H04B1/708;H04B1/7085;H04B1/709;H04B1/713;H04B1/7156;(IPC1-7):H04K1/00 |
主分类号 |
H04B1/707 |
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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