摘要
为增强水声定位系统的高帧率无模糊定位能力,提出了一种测量水下非合作高速运动目标轨迹的分布式浮标阵水声定位技术,将帧率提高到0.1 s量级.设计了组合脉冲串的信号形式,可在不产生距离模糊和不增加系统复杂度的前提下提高测量帧率.采用并行多通道自适应陷波器组和并行拷贝相关器组并联的信号处理结构,可有效抑制通道串漏和减小多普勒效应的影响.给出了定位系统湖试三维定位结果:水平x、y坐标和垂直z坐标的测量误差均小于1 m.
In order to enhance the unambiguous localization ability of an acoustic localization system with a high frame rate,an acoustic localization technique based on a distributed buoy array was proposed to track an underwater uncooperative target at high speed.The frame rate was increased to 0.1s magnitude.A combined pulse train was devised to improve the frame rate without bringing out range ambiguity and increasing system complexity.A parallel multi-channel adaptive notch filter bank and a parallel copy correlator bank were combined to construct the signal processing structure which can suppress the cross-talk and reduce the influence of the Doppler effect efficiently.The 3D localization results of a lake trial show that the measurement errors of the horizontal x and y labels and vertical z label were less than 1 m.
出处
《哈尔滨工程大学学报》
EI
CAS
CSCD
北大核心
2011年第3期288-293,共6页
Journal of Harbin Engineering University
基金
国家自然科学基金资助项目(51009042)
黑龙江省自然科学基金资助项目(E201024)
哈尔滨市科技创新人才研究专项基金资助项目(2010RFQXG030)
关键词
组合脉冲串
高帧率
异步水声定位
自适应陷波器组
拷贝相关器组
combined pulse train
high frame rate
asynchronous acoustic localization
adaptive notch filter bank
copy correlator bank
