摘要
提出了基于3个子阵接收信号间相关性度量的水下目标被动检测和定位方法,理论分析了该方法相对二元相关法在检测性能上的优势,并进行了检测性能和时延差估计精度方面的仿真检验。理论分析和仿真实验结果表明,与二元相关法相比,该方法在检测性能上具有不低于2 dB的优势,时延差估计精度有一定提高。
A new passive detection and location method for underwater targets based on the correlation metric of three signals received by three elements was proposed,and its advantages compared with two-element-correlation in detection performances were analyzed.The simulation was performed to verify the detection performances and time delay estimation accuracy.The simulation results show that,compared with two-element-correlation method,the modified method can improve the detection performance by 2 dB and the time delay estimation accuracy in a certain extent.
出处
《兵工学报》
EI
CAS
CSCD
北大核心
2012年第9期1107-1111,共5页
Acta Armamentarii
基金
国家自然科学基金项目(50909096)
关键词
信息处理技术
被动定位
互相关函数
检测性能
时延估计
information processing
passive location
autocorrelation function
detection performance
time delay estimation
