| 发明名称 | Decoding method and receiving device | ||
| 摘要 | A first correlation calculation is performed based on a first predicted frequency, with respect to received data of a GPS satellite signal. An error frequency of the first predicted frequency is estimated using a carrier phase of the GPS satellite signal based on the result of the first correlation calculation. The first predicted frequency is corrected using the error frequency, and a second predicted frequency is thus calculated. Then, a second correlation calculation is performed with respect to the same received data, based on the second predicted frequency. A navigation message carried on the GPS satellite signal is decoded using the result of the second correlation calculation. | ||
| 申请公布号 | US8885687(B2) | 申请公布日期 | 2014.11.11 |
| 申请号 | US201314022362 | 申请日期 | 2013.09.10 |
| 申请人 | Seiko Epson Corporation | 发明人 | Gobara Naoki |
| 分类号 | H04B1/00;H04B1/709 | 主分类号 | H04B1/00 |
| 代理机构 | Harness, Dickey & Pierce, P.L.C. | 代理人 | Harness, Dickey & Pierce, P.L.C. |
| 主权项 | 1. A decoding method comprising: performing a first correlation calculation based on a first predicted frequency, with respect to received data of a positioning signal; estimating an error frequency of the first predicted frequency, using a carrier phase of the positioning signal based on the result of the first correlation calculation; correcting the first predicted frequency using the error frequency and calculating a second predicted frequency; performing a second correlation calculation with respect to the same received data, based on the second predicted frequency; and decoding a navigation message carried on the positioning signal, using the result of the second correlation calculation. | ||
| 地址 | JP | ||