摘要
仿真分析了被动定向浮标阵为正三角形阵时,阵元间距等几种因素对利用最小二乘法解算目标位置精度的影响。仿真结果表明,在相同的位置误差和测向误差下,当目标在一定范围内时,阵元间距增大,定位误差增大,当目标位置超出该范围后,浮标阵定位误差急剧增大,阵元间距大的浮标阵定位误差反而小;在其它条件相同时,位置误差(测向误差)增大,定位误差增大。因此,为提高三角形阵的定位精度,应尽量提高浮标的测向精度和浮标位置精度;使用中应根据浮标性能和实际使用需求选取合理的布阵间距。
In this paper, the influence of parameters variations, such as array spacing, buoy location and direction error on solving target location using multi-buoys in a regular triangle case by mean square technique is simulated and analyzed. The simulation results indicate that when the target location is in a certain area, location error increases when the array spacing increases, but when the target location is out of the area, location error increases steeply in the case of small array spacing. Also, location error increases when the buoy location and direction error increase. So, in order to improve location accuracy, the accuracies of buoy location and direction must be increased, also the array spacing must be rightly set according to buoy performance and actual needs.
出处
《声学技术》
CSCD
北大核心
2016年第6期518-521,共4页
Technical Acoustics
关键词
被动定向浮标
最小二乘法
定位误差
passive directional buoy
mean square technique
location error
