| 恒虚警差分累积GPS信号检测研究 |
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| 引用本文： | 黄鹏达,皮亦鸣. 恒虚警差分累积GPS信号检测研究[J]. 电子测量与仪器学报, 2011, 25(1): 10-15. DOI: 10.3724/SP.J.1187.2011.00010 |
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| 作者姓名： | 黄鹏达 皮亦鸣 |
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| 作者单位： | 电子科技大学电子工程学院遥测遥感实验室; |
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| 基金项目： | 国家自然科学基金(编号:60772143)资助项目 |
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| 摘 要： | 在城市街道、峡谷、森林等环境里,GPS信号变得十分微弱.针对这些弱信号环境下捕获GPS信号的问题,将差分累积应用于GPS信号的检测.由于差分累积具有较大的多普勒频移容差,因此在克服由载波频移带来的累积衰减上具有优势.更主要地考虑到了不同的GPS信号捕获环境下,噪声背景的强度会发生变化.噪声强度的变化需要接收机自适应地调...
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| 关 键 词： | 恒虚警 差分累积 GPS信号检测 |
Study on constant false alarm rate GPS signal detection based on differential accumulation |
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| Huang Pengda,Pi Yiming. Study on constant false alarm rate GPS signal detection based on differential accumulation[J]. Journal of Electronic Measurement and Instrument, 2011, 25(1): 10-15. DOI: 10.3724/SP.J.1187.2011.00010 |
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| Authors: | Huang Pengda Pi Yiming |
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| Affiliation: | Huang Pengda Pi Yiming(School of Electronic Engineering,University of Electronic Science and Technology of China,Chengdu 611731,China) |
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| Abstract: | In the environments,urban street,canyon,dense woods,the strength of GPS signal becomes extremely weak.To acquire the degraded GPS signal in the environment without light-of-sight signal,differential accumulation is employed to detect GPS signal.Since of huge tolerance on Doppler shift,GPS signal detection based on differential accumulation effectively brings the decrease on the correlation loss from Doppler shift.More importantly,the main work of this paper focuses on the variance of noise background.The ch... |
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| Keywords: | constant false alarm rate differential accumulation GPS signal detection |
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