发明名称 |
Low power passive correlators for multichannel global positioning system signal receiver |
摘要 |
One embodiment of the present invention includes a circular shift register, K storage elements, and a code register. The circular shift register having N data samples circularly shifts a first data sample of the N data samples into a data position at a first clock frequency. The N data samples correspond to signal received from one of K satellites in a global positioning system (GPS). The N data samples are loaded into the circular shift register at a second clock frequency. The K storage elements store K code sequences, respectively. Each of the K code sequences has N code samples and includes a first code sample being written at a code position corresponding to the data position at a third clock frequency. The K storage elements correspond to the K satellites. The code register stores the N code samples loaded from one of the K storage elements at a fourth clock frequency. The fourth clock frequency is K times faster than the first clock frequency.
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申请公布号 |
US2002012387(A1) |
申请公布日期 |
2002.01.31 |
申请号 |
US20010808372 |
申请日期 |
2001.03.13 |
申请人 |
SHAKERI KAVEH;MEHRNIA ALIREZA;SOHEILI-NAJAFABADI FARSHID |
发明人 |
SHAKERI KAVEH;MEHRNIA ALIREZA;SOHEILI-NAJAFABADI FARSHID |
分类号 |
G01S1/00;H04B1/707;(IPC1-7):H04K1/00 |
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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