摘要
舰船水压信号具有难以模仿的特点,论文利用水压传感器阵列采集信号,针对浅水舰船水压信号的特点,采用互相关计算求取时延,将传统的到达时间定位方法改良并应用于水压场定位中,提出了一种舰船水压信号的阵列处理的目标定位方法,在传统的时间延迟定位方法下改进了步迭代处理的方式来消除误差,增加了传感器的数量,可以在信号传播速度未知的情况下完成超定方程求解。通过多次仿真模拟实验,在近场环境下定位平均误差约为1.7 m,最大误差为2.91 m,利用舰船水压信号对舰船定位是可行的。
Ship water pressure signals have characteristics that are difficult to imitate.This paper uses water pressure field ar-ray sensor to collect signals,uses cross correlation calculations to calculate time delays,improves traditional time of arrival local-ization methods,and applies them to water pressure field localization.A target localization method for array processing of ship water pressure signals is proposed.Under the traditional time delay localization method,the step iterative processing method is improved to eliminate errors,increase the number of sensors,and can solve the overdetermined equation when the signal propagation speed is unknown.Through multiple simulation experiments,the average positioning error in the near field environment is about 1.7 m,and the maximum error is 2.91 m.Using the ship water pressure signal to locate a ship is feasible.
作者
董霖
翟春平
于凡
DONG Lin;ZHAI Chunping;YU Fan(Dalian Institute of Measurement and Control Technology,Dalian 116013)
出处
《舰船电子工程》
2024年第6期41-45,共5页
Ship Electronic Engineering
关键词
舰船水压场
时延估计
十字阵列
ship water pressure field
time delay estimation
cross array
