| 罗兰C系统非时基交叉圆定位方法研究 |
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| 引用本文： | 刘敬虎,朱银兵,李豹.罗兰C系统非时基交叉圆定位方法研究[J].舰船电子工程,2011,31(10):64-68. |
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| 作者姓名： | 刘敬虎 朱银兵 李豹 |
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| 作者单位： | 1. 91576部队,宁波,315021
2. 海军工程大学电气与信息工程学院,武汉,430033 |
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| 基金项目： | 国家自然科学基金(编号:61004126)资助 |
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| 摘 要： | 在分析罗兰C系统非时基交叉圆定位原理基础上,详细推导了罗兰C非时基交叉圆定位算法,并根据试验得到的时差测量结果进行了单台链双曲线定位与非时基交叉圆定位算法比较。结果表明,当几何因子GDOP较好时,交叉圆定位方法与单台链双曲线定位算法的定位结果相差不大,但当GDOP较差时,采用非时基交叉圆定位方法能够明显提高定位精度,采用交叉圆定位方法能够有效解决单台链双曲线定位方法在基线延长线附近定位时存在的＂奇异＂现象,扩展罗兰C系统有效作用距离。
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| 关 键 词： | 罗兰C 交叉圆定位 牛顿迭代法 |
Study on Non-time Base Cross Circular Position Method for Loran-C |
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| Liu Jinghu Zhu Yinbing Li Bao,Ningbo ,Wuhan.Study on Non-time Base Cross Circular Position Method for Loran-C[J].Ship Electronic Engineering,2011,31(10):64-68. |
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| Authors: | Liu Jinghu Zhu Yinbing Li Bao Ningbo Wuhan |
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| Institution: | Liu Jinghu1) Zhu Yinbing2) Li Bao2)(No.91576 Troops of PLA1),Ningbo 315021)(College of Electric and Information Engineering,Naval University of Engineering2),Wuhan 430033) |
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| Abstract: | With the analysis of the principle of non-time base cross circular position method for Loran-C,algorithm of the position method is derived in detail.After that,position comparisons between single chains hyperbolic position algorithm and non-time base cross circular position method are analyzed with the measured time-difference from the experiments.The results show that position of cross circular position method is close to that of single chain hyperbolic position algorithm when the geometry dilution of prec... |
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| Keywords: | Loran C cross circular position Newton iterative method |
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