| 專著名称: | 第三屆中國衛星導航學術年會電子文集 |
| 研究中心: | |
| 首席研究員: | |
| 主編單位: | 第三屆中國衛星導航學術年會 |
| 出版時間: | 2012-05-16 |
| 出版社: | |
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| 編寫人員: | 巴曉輝 |
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| 著作性質: | 電子、通信與自動控制技術 |
| 編輯出版單位: | 第三屆中國衛星導航學術年會 |
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| 參編內容: | 基于差分相幹鎖頻環的高靈敏度GNSS信號跟蹤方法 |
| 著作簡介: | Recently, weak signal tracking is a focal point of research in the field of GNSS receiver design. In this paper, a novel algorithm based on differentially coherent frequency-locked loop (DCFLL) is presented, which is not limited by the navigation bit transition. The integration time of differentially coherent FLL algorithm can be extended as long as 100ms or 200ms. Thus the increasing integration time improves the tracking sensitivity of GNSS receiver. The experimental results show that the proposed algorithm can successfully track GPS signal with received power as low as -160dBm. The selection principle of some key parameters of DCFLL is also introduced. |
| 其它備注: | 國內出版-外文 |
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