| 论文编号: | 172511O120100094 |
| 第一作者所在部门: | 五室 |
| 论文题目: | 一种新颖的应用于带限snapshotGPS接收机中的精细码相位测定方法 |
| 论文题目英文: | |
| 作者: | 巴晓辉 |
| 论文出处: | EI收录 |
| 刊物名称: | Position Location and Navigation Symposium (PLANS), 2010 IEEE/ION |
| 年: | 2010 |
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| 影响因子: | 0 |
| 摘要: | A novel fine code phase determination approach is proposed based on the deduced autocorrelation formula of C/A code for bandlimited receivers. The approach is able to significantly improve the navigation fix accuracy for bandlimited snapshot GPS receivers. A simplified algorithm based on the Taylor expansion of the correlation formula is proposed as well to reduce the computational complexity. In addition, a modified circular correlation combined with frequency FFT acquisition engine optimized for snapshot receivers is proposed, which is suitable for the proposed fine code determination algorithm. It also utilizes a proposed “coarse capture & confirm” mechanism to suppress the correlation peak distortion as well as the false alarm probability. Simulations with data sampled from both simulator and real world show that the proposed approaches are able to significantly improve the positioning accuracy in complex environments such as urban canyons and indoors. |
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| 备注: | 2010 IEEE/ION |
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