The image signal to noise ratio in the low-point target detection and tracking of the study, originated in long-range search and surveillance. 对于图像中低信噪比点目标的检测与跟踪问题的研究,起源于远距离搜索与监视。
There are a number of groups experimentally searching for spin-dependent long-range forces. These works are largely motivated to explore the role of spin in gravitation, and to search for a new force in nature. 长期以来,很多实验小组进行了与自旋有关的长程力的实验研究,探测这种新的相互作用对于探索粒子自旋对引力场的影响以及寻找自然界中可能存在的新的相互作用具有重要的意义。