| 基于进退法的全球导航卫星系统反射信号镜面反射点的估计算法 |
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| 引用本文： | 刘原华,贺立庆,牛新亮.基于进退法的全球导航卫星系统反射信号镜面反射点的估计算法[J].科学技术与工程,2019,19(31):270-275. |
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| 作者姓名： | 刘原华 贺立庆 牛新亮 |
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| 作者单位： | 西安邮电大学通信与信息工程学院,西安,710121;中国空间技术研究院西安分院,西安,710000 |
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| 基金项目： | 陕西省自然科学基础研究计划项目（2016JQ6033） |
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| 摘 要： | 通过研究全球导航卫星系统反射信号（GNSS-R）几何关系及其镜面反射点算法，确定镜面反射点问题为一维单峰凸函数极值搜索问题后，本文提出基于进退法的镜面反射点估计算法，并论述了进退法在镜面反射点位置估计中的理论可行性。为了验证进退法的正确性，利用MATLAB仿真软件对进退法与传统算法进行了仿真结果分析。实验仿真结果表明：进退法可以正确估计GNSS-R镜面反射点的位置信息，并且具有迭代次数少，运算速度快，算法效率高的特点。
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| 关 键 词： | 全球导航卫星系统反射信号 镜面反射点 一维极值搜索法 进退法 |
| 收稿时间： | 2019/4/20 0:00:00 |
| 修稿时间： | 2019/7/14 0:00:00 |
The Algorithm for the Determination of the GNSS-R specular Reflection Point Based on advance and retreat method |
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| liuyuanhu,heliqing and niuxinliang.The Algorithm for the Determination of the GNSS-R specular Reflection Point Based on advance and retreat method[J].Science Technology and Engineering,2019,19(31):270-275. |
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| Authors: | liuyuanhu heliqing and niuxinliang |
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| Abstract: | After studying the geometrical relation of the reflection signal (GNSS-R) of the global positioning satellitesystem and its specular reflection point algorithm, and determining that the problem is a one-dimensional single-peak function extreme value search problem, a GNSS-R specular reflection point estimation algorithm based on the advance and retreat method was proposed.The feasibility of advance and retreat method in estimating specular reflection points is discussed.In order to verify the correctness of this algorithm, MATLAB simulation software is used to analyze the algorithm and the traditional algorithm.The simulation results show that the advance and retreat method can correctly estimate the position information of GNSS-R specular reflection point, and has the characteristics of fewer iterations and faster operation speed. |
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| Keywords: | gnss-r specular point one dimensional extremum search advance and retreat method |
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