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基于合成时空谱的多目标运动分析 被引量:1
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作者 毛卫宁 钱进 蔡卫平 《东南大学学报(自然科学版)》 EI CAS CSCD 北大核心 2003年第2期131-133,共3页
针对水下多目标的检测与定位问题 ,提出了一种基于合成时空谱的多目标运动分析方法 .该方法可对多个弱目标同时实现检测、定位、跟踪和运动分析 ,避免了多目标跟踪中的数据关联、轨迹交叉等信号处理难点 ,提高了算法的适用性 .研究利用... 针对水下多目标的检测与定位问题 ,提出了一种基于合成时空谱的多目标运动分析方法 .该方法可对多个弱目标同时实现检测、定位、跟踪和运动分析 ,避免了多目标跟踪中的数据关联、轨迹交叉等信号处理难点 ,提高了算法的适用性 .研究利用遗传算法的小生境技术 ,实现了多目标的运动参数估计 .仿真结果表明 ,在低信噪比情况下 ,对强度不等、轨迹交叉的 展开更多
关键词 水下多目标检测 水下多目标定位 多目标运动分析 被动声纳 小生境技术 信号处理 多目标跟踪 合成时空谱
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Research on the Strategy of Underwater United Detection Fusion and Communication Using Multi-sensor
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作者 Zhenhua Xu Jianguo Huang Hai Huang Qunfei Zhang 《Journal of Marine Science and Application》 2011年第3期358-363,共6页
In order to solve the distributed detection fusion problem of underwater target detection, when the signal to noise ratio (SNR) of the acoustic channel is low, a new strategy for united detection fusion and communicat... In order to solve the distributed detection fusion problem of underwater target detection, when the signal to noise ratio (SNR) of the acoustic channel is low, a new strategy for united detection fusion and communication using multiple sensors was proposed. The performance of detection fusion was studied and compared based on the Neyman-Pearson principle when the binary phase shift keying (BPSK) and on-off keying (OOK) modes were used by the local sensors. The comparative simulation and analysis between the optimal likelihood ratio test and the proposed strategy was completed, and both the theoretical analysis and simulation indicate that using the proposed new strategy could improve the detection performance effectively. In theory, the proposed strategy of united detection fusion and communication is of great significance to the establishment of an underwater target detection system. 展开更多
关键词 detection fusion likelihood ratio test(LRT) Neyman-Pearson (NP) low signal to noise ratio
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