| 伪距噪声建模方法研究和分析 |
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| 引用本文： | 张雪辉,王芳. 伪距噪声建模方法研究和分析[J]. 空间控制技术与应用, 2011, 37(2): 44-48. DOI: 10.3969/j.issn.1674-1579.2011.02.008 |
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| 作者姓名： | 张雪辉 王芳 |
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| 作者单位： | 中国航天科工信息技术研究院,北京,100048 |
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| 基金项目： | 国家高科技研究863计划(2008AA12Z303)资助项目 |
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| 摘 要： | 主要介绍从GPS原始数据中提取伪距噪声的方法,并利用MATLAB非线性拟合工具箱cftool中的参数逼近模型对提取出的伪距噪声建模,针对几种较好的建模结果进行数据回放和比较,确定最佳建模方案.建模结果可用于Galileo系统空间信号误差（signal-in-space error）的实时估计和用户完好性算法的研究.
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| 关 键 词： | GPS 伪距噪声建模 拟合 |
Research and Analysis on Pseudo-Range Noise Modeling Method |
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| ZHANG Xuehui,WANG Fang. Research and Analysis on Pseudo-Range Noise Modeling Method[J]. Aerospace Contrd and Application, 2011, 37(2): 44-48. DOI: 10.3969/j.issn.1674-1579.2011.02.008 |
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| Authors: | ZHANG Xuehui WANG Fang |
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| Affiliation: | ZHANG Xuehui,WANG Fang(China Aerospace Science & Industry Academy of Information Technology,Beijing 100048,China) |
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| Abstract: | A method is proposed to extract pseudo-range noise from GPS raw data in this paper.And then the obtained pseudo-range noise is modeled by using several parameter approximation models in the MATLAB non-linear curve fitting toolbox(cftool).By data playback and compassion of several modeling results,the best modeling scheme is selected.The results presented in this paper can be used to develop real-time estimation and user integrity algorithms for signal-in space error in the Galileo system. |
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| Keywords: | GPS pseudo-range noise modeling curve fitting |
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