发明名称 |
Sampling threshold and gain for satellite navigation receiver |
摘要 |
A satellite navigation device including a flexible radio frequency (RF) receiver is described. The receiver receives a signal that includes at least a first spread-spectrum signal from a first satellite. The receiver has a first channel that includes an analog-to-digital (A/D) converter to sample and quantize the signal and an automatic gain control (AGC) to adjust an amplification of the signal. The A/D converter has a first non-zero quantization threshold magnitude and a second non-zero quantization threshold magnitude. The AGC may adjust a gain in accordance with the first non-zero quantization threshold magnitude. The gain may correspond to a first pre-determined probability of a non-zero sample and the second non-zero quantization threshold magnitude may correspond to a second pre-determined probability of a non-zero sample.
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申请公布号 |
US7912158(B2) |
申请公布日期 |
2011.03.22 |
申请号 |
US20050270253 |
申请日期 |
2005.11.08 |
申请人 |
NAVCOM TECHNOLOGY, INC. |
发明人 |
CAHN CHARLES R.;KNIGHT JERRY EUGENE |
分类号 |
G01S19/21;H04L27/08;G01S19/24;G01S19/29 |
主分类号 |
G01S19/21 |
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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