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Locating accuracy of TDOA(time difference of arrival)is depend on multiradar constellation. 多站雷达的布局直接影响距离差法目标定位的精度。
Based on the measurement principle of optical time-domain reflectometry (OTDR), a method to improve the nonreflection-event locating accuracy is proposed. 在光时域反射仪(OTDR)的测试原理基础上,提出了一种改善非反射事件定位精度的方法。
With this method, the experimental data collected by OTDR have been retreated and the locating accuracy has been increased by using injection pulse rising edge. 根据这种方法,对光时域反射仪所采集的数据重新处理,利用光时域反射仪的注射脉冲上升沿提高非反射事件的定位的精度。
This method can obtain sub pixel locating accuracy without the sacrifice of the aiming speed, because of the coarse and precise locations. 此种方法先经过传统模板算子确定边缘的大致位置 ,然后用曲线拟合方法求出边缘的精确位置 ,经过粗、精两次定位 ,在不牺牲速度的情况下 ,就可获得亚像素级的定位精度。
This algorithm is simple and no communication is needed while locating and its location accuracy is higher than maximum likelihood estimation.The simulation using Matla... 加权质心定位算法计算简单,定位过程中节点间通信开销小,定位精度较极大似然估计法高,仿真结果表明其基本满足应用要求。
TOA difference locating accuracy 时差定位精度
The life of the drill and the location accuracy of entering drilling of microvoid are remarkably impr. 分析了微小孔钻头轴向振动入钻时特殊的动力学行为及其对入钻定位误差的修正作用。
The practice shows that the location accuracy of the improved algorithm is 98.3%. 实践表明，改进的车牌区域定位算法的定位准确率为98.;3%25。
EDM servo system are analysed and studyed from the view of location accuracy in this paper. 从定位精度的观点对电火花加工伺服系统进行分析研究。
The simulation results show that, Taylor algorithm and Chan algorithm are easy to realize and can achieve good location accuracy. 仿真结果表明:Taylor算法和Chan氏算法的定位精度高且易于实现。
The simulation results showed that this method was correct and effective,which had high location accuracy and fast convergence speed. 仿真结果表明,该法正确有效,定位精度较高、收敛速度快。
Of 39 intraocular foreign bodies, 35 were detected, which were localized by MSCT, and the detective accuracy rate was 90% , and location accuracy rate was 100%. 39枚眼球异物中,多层螺旋CT检出35枚,并准确定位,检出率为90%25,准确定位率为100%25;
To avoid this inaccurate matching we match several points close to the center of the object and pick the most promising matching by checking of relative location accuracy. 为了避免这种匹配错误的现象发生，我们选择靠近物体中心的几点进行匹配，并且通过彼此位置的调整来选取最接近的一点。
The result of simulation proves its effectiveness in improving the location accuracy than traditional TDOA and TDOA/AOA method in NLOS propagation environment. 仿真结果表明，该算法能显著提高传统的TDOA和TDOA/AOA方法在NLOS传播环境下的定位精度。
Finally, the location accuracy obtained from the improved EKF shows better performance than the fore one in simulations, even in the case of non light of sight (NLOS). 仿真结果显示，优化后定位估计性能比优化前的算法性能有显著改善。
The simulation results show that this method can effectively improve the location accuracy in NLOS environment with little degeneration to mobile location in LOS environment. 仿真结果表明，该方法能够有效提高NLOS传播环境下的定位精度，对LOS传播条件下的定位精度影响小。
The simulation results show that the location accuracy of each method is relative to the geometrical position of bistatic radar systems, and has different spatial distribution. 仿真结果表明，各算法的定位精度与双基地雷达系统的几何结构有关，且有着不同的空间分布规律。
Methods for Enhancing TOA Difference Locating Accuracy 提高时差定位精度的方法
Because of restricted resources, localization algorithms in wireless sensor network need to consider location accuracy, price of network and costs of communication and computing in general. 传感器网络由于资源受限,定位算法需要综合考虑定位精度,网络构建成本,通信、计算开销等多方面因素。
Test results showed that noises were depressed well, signal-to-noise ratio was improved obviously, and flaw location accuracy and longitudinal resolution were improved by using the method. 结果表明，它能较好地抑制噪声，使用该法处理的信号的信噪比明显提高，并且有较高的缺陷定位精度和纵向分辨率。