水下目标多元声传感阵列网络定位方法
A Network Localization Method with Multi？？Acoustic Sensor Array for Underwater Target

针对由于环境干扰因素等影响水下目标精确定位的问题,提出了采用以声传感器为核心的多五元声传感阵列网络定位方法。根据水下空间环境,建立了多五元声传感阵列网络定位空间数学模型,研究与分析网络结构的多五元声传感阵列定位算法,给出了水下目标多五元声传感阵列网络定位参数的计算式及误差分析。分析表明:多五元声传感阵列网络定位参数的精度与声传感器阵列的布阵方式和声传感器之间的时延密切相关,随着时延的增大,水下目标方位角、俯仰角及距离误差也增大;通过采用单五元声传感阵列定位算法和多五元声传感阵列网络定位模拟对比实验,在同一区域下,多五元声传感阵列网络定位算法测量误差小于单五元声传感阵列定位算法测量误差,验证了水下目标多五元声传感阵列网络定位具有测试精度高的优点,为水下目标的精确定位及精确制导研制提供了技术方法,为开拓水下目标检测奠定了基础,具有很高的应用价值。
A network localization algorithm with multiple five？？element acoustic sensor arrays is proposed to solve the precise orientation of underwater targets, which is affected by environmental disturbance, and acoustic sensors are used as the core. A multiple five？？element arrays acoustic sensor localization model is build based upon the underwater spatial relationships. A calculation formula of the spatial location of underwater targets and error analysis are given by studying and analyzing the multiple five？？element arrays acoustic sensor localization algorithm of network structure. The analysis results show that the accuracy of positioning parameters of the multiple five？？element arrays acoustic sensor localization algorithm is related to the disposal way of acoustic sensor array and the time delay among the acoustic sensors. The azimuth, pitch angle and distance errors of the underwater target increase as the time delay increases. Simulation and comparison in the same area between the single five？？element array acoustic sensor localization algorithm and the multiple five？？element arrays acoustic sensor localization algorithm show that the measurement error of the multiple five？？element arrays acoustic sensor localization algorithm is smaller than that of the single five？？element array acoustic sensor localization algorithm. The result verifies advantage of the multiple five？？element arrays acoustic localization algorithm, that is, its test accuracy is excellent. The algorithm provides a technical method for the precise orientation of underwater targets and the design of precision？？guided munition, and lays a foundation for the detection of underwater targets