双声纳基阵二维目标联合测向交叉定位算法精度分析

主要对双声纳基阵二维目标联合测向交叉定位算法及精度进行了分析，给出了系统具体的定位公式和误差计算公式，并针对不同基线和不同基线误差、方位误差下目标GDOP的分布情况进行了仿真分析。仿真结果表明，定位误差随基线长度的增加而减小，随基线和方位误差的增大而增大，当基线增大到一定长度时．定位误差最终趋向稳定，达到最小。

Accuracy Analysis of Two-Dimensional Target＇s Joint Location Based on Angles of Arrival Measurement in Bistatic Sonar Arrays

The two-dimension＇s target joint location and accuracy based on angles of arrival measurement in bistatic sonar arrays are analyzed in this paper. It presents the concrete location formulas and error calculating formulas in the location system, and draws the contours of GDOP with different basic line and different basic line and bearing errors by computer simulation. The result shows that the location error decreases as the length of basic line increases, but it increases when the errors of basic line and bearing increase. And when the length of basic line reaches a certain degree, the location error will tend to be stable at last and reach a minimum.