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本文在深入、系统地总结分析用于闪烁相机定位算法的基础上,提出了质心导引的三维最大似然定位算法。此算法和虚拟光电倍增管技术一起,在提高有效视野的情况下,用质心法计算出事件发生的位置,并对其进行非线性校正;然后在定位误差范围内,在考虑作用深度的情况,在三维空间内,用最大似然法进行作用位置的估计。虚拟光电倍增管技术的引用弥补了质心法强边缘效应的不足。质心法的应用,大大缩小了搜寻范围,降低了一般最大似然法对计算机硬件和存储空间的要求,加快了计算速度。
Based on the deep and systematical analysis of the algorithm used to locate the flickering camera, a three-dimensional centroid-based maximum likelihood location algorithm is proposed. This algorithm, together with the virtual photomultiplier tube technique, uses the centroid method to calculate the position of the event and improve it non-linearly while improving the effective field of view. Then, within the range of positioning error, considering the depth of action, In three-dimensional space, using the maximum likelihood method to estimate the location of action. The reference to virtual photomultiplier tube technology makes up for the lack of strong edge effect of the centroid method. The application of centroid method greatly narrows the search range, reduces the requirements of the general maximum likelihood method for computer hardware and storage space, and speeds up the calculation.