【摘要】 依据T/R-R型双基地声呐的工作特点,提出了基于加权最小二乘(WLS)估计的双基地声呐定位算法,通过数值仿真,研究了不同基线长度下该算法的定位精度,给出了WLS算法定位精度的几何分布。结果表明,运用该算法对水下目标进行定位,比单纯基于波达时间(TOL)的定位方法,双基地系统可以获得更高的定位精度。更多还原

【Abstract】 According to the characteristic of T/R-R bistatic sonar, the localization algorithm based on weighted least squares (WLS) estimate is proposed. Through numerical simulation, the performance of the proposed method is investigated for different baseline length. The Geometrical Dilution of Precision (GDOP) for bistatic sonar is given. The simulating results show that the location accuracy of WLS algorithm is higher than time only localization (TOL) methods for bistatic sonar.更多还原