发明名称 |
Spread spectrum correlator |
摘要 |
An apparatus for decoding a received spread spectrum signal having a data signal modulated with a pseudo-noise code and transmitted as an RF spread spectrum signal. A first reference register holds a first pseudo-noise signal, a second reference register holds a second pseudo-noise signal, and a receive-register holds a received spread spectrum signal. A first modulo adder adds each chip of the received spread spectrum signal with each respective chip of the first pseudo-noise signal, thereby generating a first plurality of chip-comparison signals. A first summer adds the first plurality of chip-comparison signals, generating a first correlation signal. The comparator compares the correlation signal to an upper-threshold level and a lower-threshold level, and respectively generates a first data-symbol signal or a second data-symbol signal.
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申请公布号 |
US5022047(A) |
申请公布日期 |
1991.06.04 |
申请号 |
US19890390315 |
申请日期 |
1989.08.07 |
申请人 |
OMNIPOINT DATA CORPORATION |
发明人 |
DIXON, ROBERT C.;VANDERPOOL, JEFFREY S. |
分类号 |
H04J13/00;H04B1/66;H04B1/707;H04K1/02 |
主分类号 |
H04J13/00 |
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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