实验结果表明，基于遗传算法的求解方案能快速地求出传感器节点位置优化问题的全局最优解，并满足目标定位的精度要求。
Experiment results show that the global optimal solution can be quickly obtained by the proposed method and the precision requirement for target location is satisfied.
使用二个双曲线(三个接收机)系统能获得2d目标位置，当使用最少三个双曲面(四个接收机)系统能实现完整的3d立体目标定位。
Using two hyperbolas (three receivers) the system can obtain 2d target position, while using at minimum three hyperboloids (four receivers) the system can achieve full 3d target locating.
目标项位置仅影响目标定位时间，目标激活时间不受对象空间排列方式和目标项位置的影响；
Target position only affected the time of target localization in both arrangements. In addition, the time of target activation was not affected by the arrangement of objects and the target location.
对于二进制传感器网络目标定位跟踪问题时，最常用的直线拟和算法是基于传感器位置的统计信息进行计算，需要目标通过的一定数量传感器才能给出较精确的解。
The paper presents the importance and necessity of underwater target tracking and a survey of the kinds of underwater target tracking, based on the requirement of underwater precise guidance.
首先，本文以火车钩尾销的目标定位为背景，详细研究了该目标的基于空间关系的定位算法，分析并说明了使用基于空间位置关系定位应该注意的几个问题。
Firstly, locating algorithm based on spatial relationship is discussed in this paper and has applied in automatic checking train images. Some problems are analyzed which exit in this method.
结果表明：（1）目标位置（而非目标颜色）导致定位距离误差的变化，说明视觉的知觉—动作双系统理论适用于视觉记忆引导的目标定位；
Results indicated that: (1) dot's position (not color) effect the localization displacement error, so the Perception-Action double-system theory is still compatible under memory-guided localization;
结果表明：（1）目标位置（而非目标颜色）导致定位距离误差的变化，说明视觉的知觉—动作双系统理论适用于视觉记忆引导的目标定位；
Results indicated that: (1) dot's position (not color) effect the localization displacement error, so the Perception-Action double-system theory is still compatible under memory-guided localization;
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