搜索策略改进的波束形成定位方法研究
发布时间：2018-11-14 13:21
【摘要】：针对传统时差方法定位精度低和波束形成方法定位效率低的问题,提出了一种基于遗传算法和波束形成算法的海洋平台损伤定位方法。通过遗传算法对待搜索区域坐标进行编码、选择、交叉、变异等操作,对波束形成算法的搜索策略进行改进,快速搜索损伤位置坐标。实验证明,与时差定位算法相比,本文方法的定位误差降低了50%;与波束形成算法相比,本文方法的运算时间减少了53%。因此,本文方法在保证定位精度的前提下,提高了算法的执行效率,对海洋平台损伤的实时监测和定位具有一定的实用价值。
[Abstract]:In order to solve the problem of low precision and low efficiency of beamforming, a damage location method for offshore platform based on genetic algorithm and beamforming algorithm is proposed. The search strategy of beamforming algorithm is improved by using genetic algorithm to code, select, cross, and mutate the search region coordinates, and the damaged position coordinates can be quickly searched. Experimental results show that compared with the TDOA, the localization error of the proposed method is reduced by 50 and the computational time of the proposed method is reduced by 53. 3% compared with the beamforming algorithm. Therefore, this method improves the efficiency of the algorithm on the premise of ensuring the accuracy of the location, and has a certain practical value for the real-time monitoring and location of the damage of offshore platform.
【作者单位】： 中国海洋大学工程学院机电工程系;
【基金】：国家自然科学基金项目(61501418) 山东省自然科学基金项目(BS2015DX004) 中央高校基本科研项目(201513003) 青岛市博士后人员应用研究项目(2015-171)
【分类号】：P75
本文编号：2331269
[Abstract]:In order to solve the problem of low precision and low efficiency of beamforming, a damage location method for offshore platform based on genetic algorithm and beamforming algorithm is proposed. The search strategy of beamforming algorithm is improved by using genetic algorithm to code, select, cross, and mutate the search region coordinates, and the damaged position coordinates can be quickly searched. Experimental results show that compared with the TDOA, the localization error of the proposed method is reduced by 50 and the computational time of the proposed method is reduced by 53. 3% compared with the beamforming algorithm. Therefore, this method improves the efficiency of the algorithm on the premise of ensuring the accuracy of the location, and has a certain practical value for the real-time monitoring and location of the damage of offshore platform.
【作者单位】： 中国海洋大学工程学院机电工程系;
【基金】：国家自然科学基金项目(61501418) 山东省自然科学基金项目(BS2015DX004) 中央高校基本科研项目(201513003) 青岛市博士后人员应用研究项目(2015-171)
【分类号】：P75
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