徐国军,笪良龙,李玉阳,张林.低信噪比条件下引导源目标定位算法[J].声学技术,2010,(3):336~339 |
低信噪比条件下引导源目标定位算法 |
Simulation research on target localization algorithm using a guide source in low signal-to-noise (SNR) ratio |
投稿时间:2009-02-20 修订日期:2009-05-26 |
DOI: |
中文关键词: 引导源目标定位算法 领域平均法 拉东变换 KRAKEN模型 |
英文关键词: GTL algorithm the field average method Radon transform KRAKEN model |
基金项目:国防预研基金项目(51303020401);教育部“新世纪优秀人才支持计划NCET”项目(ZL200510000885.6) |
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中文摘要: |
为了实现引导源目标定位算法在低信噪比声源信号条件下的准确定位,在推导了引导源目标定位算法原理基础上,根据算法仿真结果的特点,提出了利用领域平均法对算法进行降噪处理的方法。对几组不同信噪比的引导声源和目标声源,进行了算法仿真,比较分析了其降噪前后的引导源目标定位算法处理结果。计算机仿真结果表明领域平均法降噪处理能有效提高引导源目标定位算法在低信噪比条件下的定位效能。 |
英文摘要: |
In order to achieve the accurate location of the target localization algorithm using a guide source(GTL algo-rithm) in low signal-to-noise(SNR) ratio condition,a denoising processing method for the GTL algorithm based on the field average method is proposed.Some guide sources and objective sources with different SNRs are used for the GTL algorithm simulation,and the simulation results before-and-after denoising processing are analyzed.The analytic results show that the location efficiency of the GTL algorithm is improved by the denoising processing of using the field average method. |
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