发明名称 |
Radio frequency device for receiving TV signals and GPS satellite signals and performing positioning |
摘要 |
An apparatus and method for determining the position of a user terminal comprise an antenna subsystem which is able to receive signals of GPS and TV, a receiver front end which converts the frequency of the incident signals and filters out unwanted signals so that the desired signals can be sampled, a digital processing component which accommodates the imperfections of the front end and converts the measured signals into a position information. The apparatus is capable of receiving at the user terminal, broadcast television signals from television signal transmitters; determining a first set of pseudo-ranges between the user terminal and the television signal transmitters based on a known component of the broadcast television signals; receiving at the user terminal global positioning signals from a global positioning satellites; determining a second set of pseudo-ranges between the user terminal and the global positioning satellites based on the global positioning signals; and determining a position of the user terminal based on the first and second sets of pseudo-ranges, locations of the television signal transmitters, and locations of the global positioning satellites. |
申请公布号 |
US2003145328(A1) |
申请公布日期 |
2003.07.31 |
申请号 |
US20020292975 |
申请日期 |
2002.11.13 |
申请人 |
RABINOWITZ MATTHEW;SPILKER JAMES J. |
发明人 |
RABINOWITZ MATTHEW;SPILKER JAMES J. |
分类号 |
G01S5/00;G01S5/02;G01S5/14;G01S19/46;H03L7/087;(IPC1-7):H04N7/20 |
主分类号 |
G01S5/00 |
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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