| 水下被动测距的后置处理 |
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| 引用本文： | 吴国清. 水下被动测距的后置处理[J]. 声学学报, 1995, 20(2): 88-100. DOI: 10.15949/j.cnki.0371-0025.1995.02.002 |
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| 作者姓名： | 吴国清 |
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| 作者单位： | 中科院声学所声场声信息国家重点实验室 |
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| 基金项目： | 中国船舶工业总公司基金 |
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| 摘 要： | 本文根据我国海上实验数据，分析了水下被动定位后置处理的必要性和作用，并较系统地发展了以线性二维卡尔曼滤波为基础的处理方法。分析了平均法可获得的性能和存在的问题，详细地发展出用时延的二次差作状态变量的线性卡尔曼滤波器，讨论了噪声统计参数的选取，发现运动噪声参数对环境变化敏感，需要自适应调整。分析了极坐标和直角坐标下两级距离滤彼的性能。最后讨论了海上实验分析中发现的有待进一步研究的问题。
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| 收稿时间： | 1993-06-18 |
Post processor of underwater passive range finding |
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| WU Guoqing. Post processor of underwater passive range finding[J]. ACTA ACUSTICA, 1995, 20(2): 88-100. DOI: 10.15949/j.cnki.0371-0025.1995.02.002 |
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| Authors: | WU Guoqing |
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| Abstract: | The analysis of physical data in shallow water shows the importance of post processing. The same type of dynamical and measurement model of linear Kalman filter can be used to deal with different state variable, like time delay, bearing and range. These filters can be combined into a wonderful post-processor. Investigation of the noise parameter selection explores that observation noise parameters need not be selected strictly, process noise parameter is sensitive to environment and its adaptation is necessary in the filter. The performance of range filter as second stage filter either polar or cartesian coordinate are analyzed. At last an unexpected phenomenon is revealed from the analysis of physical data which needs further study |
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