摘要
水下定位技术在深水作业中起重要作用,但由于深水中各种因素影响会造成一定定位误差,所以在采用一种定位方法之前,要分析各种误差源经过系统计算的传播后对定位精度的影响。论文利用距离和深度等数据对水下目标进行定位计算,并针对系统本身和系统所处环境所带来的五种误差进行理论公式推导和分析,包括测距误差、航速误差、定位时间测量误差、深度误差和位置修正误差,并给出了减小误差的基本方法。
Underwater positioning technology plays an important role in deep-water operations,but because the influence of various factors in the deep water causes a certain position error,therefore the positioning accuracy influence due to various sources of error propagating through the system calculation is analyzed before using apositioning method.In the paper,distance and depth are used to carry out positioning calculation,deduce and analyze the five kinds of error caused by the system itself and the environment,including the error of measuring distance,error of speed,error of measuring time,error of sounding and error of correcting position,the basic method to reduce errors is given.
出处
《舰船电子工程》
2017年第3期140-144,共5页
Ship Electronic Engineering
关键词
水下目标定位
误差分析
underwater target location
error analysis
