摘要
对偶极子型声矢量传感器应用于水声目标方位估计的信号处理方法进行了分析和研究 ,并采用傅立叶分解方法 ,将一般的窄带信号偶极子定向处理方法推广到宽带 ,推导出了相应的处理算法 .经计算机模拟计算 ,在特殊角度用波束旋转后 ,方位估计精度一般高于 2°。
The application of dipole acoustic vector sensor to estimate the direction of arrive (DOA) signal was studied. The acoustic vector sensor signal processing of narrow-band was developed to wide-band processing by the application of discrete Fourier transform. Methods used in determining DOA were derived. The computer simulation indicates that the estimation precision of DOA is mostly higher than 2°. The efficiency of acoustic vector sensor signal processing algorithms are also demonstrated by the direction estimation of real underwater acoustic targets.
出处
《东南大学学报(自然科学版)》
EI
CAS
CSCD
北大核心
2002年第5期688-691,共4页
Journal of Southeast University:Natural Science Edition
基金
教育部跨世纪优秀人才培养计划资助经费项目
关键词
偶极子
声矢量传感器
方位估
水声目标
信号处理
Computer simulation
Discrete Fourier transforms
Estimation
Signal processing
Underwater acoustics
Vectors