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一种二维图像处理的LOFAR线谱检测方法研究
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摘要
LOFAR(Low Frequency Analysis Record)图线谱检测是被动声呐检测的重要内容,而水声环境复杂,线谱信息淹没在噪声干扰中,难以提取。本文提出一种二维图像处理的LOFAR线谱检测方法,通过二维图像处理方法来提高LOFAR线谱检测能力。通过现役被动声呐水下目标探测数据仿真分析,该方法能够明显提高LOFAR线谱图像质量,为目标自动检测奠定良好基础。
LOFAR(Low Frequency Analysis Record) figure line-spectrum detection is an important content of passive sonar detection, butit is difficult to extract, cause of complex acoustic environment, whichhide the line-spectrum information. This paper presents method of a two-dimensional image processing LOFAR line-spectrum detection, through the two-dimensional image processing method to improve LOFAR line-spectrum detection ability. Through the simulation analysis with the data of underwater target detection of active passive sonar, the method can obviously increase the LOFAR image quality, lay good foundation for target automatic detection.
引文
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