发明名称 |
Apparatus and method for generating and utilizing pseudonoise code sequences |
摘要 |
A set of independent pseudonoise (PN) component codes greater than two are combined in a manner which produces one or more I and Q uncorrelated orthogonal pairs of resulting combined PN sequences. At least two of the component codes in a resulting combined PN sequence are combined in a manner which produces an overall imbalance of ones and zeros in the binary expression of the resulting combined PN sequence so that the resulting composite code has a partial correlation with a predetermined one of the PN component codes. In the preferred embodiment, three component codes are combined to produce uncorrelated orthogonal pairs of composite codes wherein at least one of the pairs of composite codes is produced to have a partial correlation with one or more of the component codes.
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申请公布号 |
US5598154(A) |
申请公布日期 |
1997.01.28 |
申请号 |
US19940348669 |
申请日期 |
1994.12.02 |
申请人 |
UNISYS CORPORATION |
发明人 |
WILSON, MICHAEL L.;ZSCHEILE, JR., JOHN W.;SAGGIO, RICHARD J.;LUNDQUIST, ALAN E. |
分类号 |
H04B1/707;H04J13/00;H04J13/02;(IPC1-7):H03M7/00 |
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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