| 顾及海底地形坡度的应答器互测距能力估计 |
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| 引用本文： | 孙文舟,刘强,殷晓冬,刘聚.顾及海底地形坡度的应答器互测距能力估计[J].海洋测绘,2019,39(4):10-13. |
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| 作者姓名： | 孙文舟 刘强 殷晓冬 刘聚 |
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| 作者单位： | 海军大连舰艇学院军事海洋与测绘系,辽宁大连,116018;91937部队,浙江舟山,316000 |
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| 基金项目： | 国家自然科学基金(41876103；41874016)；国家重点研发计划(2016YFB0501701) |
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| 摘 要： | 研究了在海底声速梯度为正的情况下,应答器最大互测距距离的计算方法。对于平坦地形,直接基于声线跟踪的原理计算;对于倾斜地形,首先将实际声线轨迹近似为圆弧,然后利用牛顿法迭代计算初始掠射角,进一步得到两应答器间的水平距离。仿真实验结果表明,应答器的架设高度越高,最大互测距距离越远;同样架设高度,坡度越大的地形互测距距离越短。
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| 关 键 词： | 声线跟踪 声线轨迹 应答器互测距 牛顿法 海底控制点 |
A Method of Calculating the Maximum Mutually Measuring Distances Between the Transponders |
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| SUN Wenzhou,LIU Qiang,YIN Xiaodong,LIU Ju.A Method of Calculating the Maximum Mutually Measuring Distances Between the Transponders[J].Hydrographic Surveying and Charting,2019,39(4):10-13. |
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| Authors: | SUN Wenzhou LIU Qiang YIN Xiaodong LIU Ju |
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| Institution: | Department of Military Oceanography and Hydrography,Dalian Naval Academy,Dalian 116018 ,China;Troops 91937,Zhoushan 316000 ,China |
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| Abstract: | The method of calculating the maximum mutually measuring distance between transponders under the condition of positive sound velocity gradient is studied.For the flat terrain,it can be calculated based on the principle of ray-tracing methods.For the inclined terrain,the actual sound ray trace can be approximated to an arc,then the initial grazing angle is calculated by the Newton method,and the horizontal distance between two transponders is further obtained.The simulation results show that the higher the height of transponder is,the farther the maximum mutually measuring distance between transponders is;At the same height of transponder,the higher the slope is,the shorter the distance is. |
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