The degree of polarization (DOP) ellipsoid can be used as either feedback or feedforward signal for automatic polarization mode dispersion compensation. We have realized the experiment for obtaining DOP ellipsoid from...The degree of polarization (DOP) ellipsoid can be used as either feedback or feedforward signal for automatic polarization mode dispersion compensation. We have realized the experiment for obtaining DOP ellipsoid from 100 sampling data of output states of polarization using particle swarm optimization (PSO) as ellipsoid data fitting algorithm. It was shown that the PSO algorithm was powerful for ellipsoid data fitting with high precision within 250 ms.展开更多
Modern particle physics experiments usually rely on highly complex and large-scale spectrometer devices.In high energy physics experiments,visualization helps detector design,data quality monitoring,offline data proce...Modern particle physics experiments usually rely on highly complex and large-scale spectrometer devices.In high energy physics experiments,visualization helps detector design,data quality monitoring,offline data processing,and has great potential for improving physics analysis.In addi-tion to the traditional physics data analysis based on statistical methods,visualization provides unique intuitive advantages in searching for rare signal events and reducing background noises.By applying the event display tool to several physics analyses in the BESIII experiment,we demonstrate that visualization can benefit potential physics discovery and improve the signal significance.With the development of modern visual-ization techniques,it is expected to play a more important role in future data processing and physics analysis of particle physics experiments.展开更多
基金This work was supported by the National Natural Science Foundation of China (No. 60072042 and 60377026), the National "863" High Technology Project of China (No. 2001AA122041 and 2003AA311070), and Corporative Building Project of Beijing Educational Committee (No. XK100130437).
文摘The degree of polarization (DOP) ellipsoid can be used as either feedback or feedforward signal for automatic polarization mode dispersion compensation. We have realized the experiment for obtaining DOP ellipsoid from 100 sampling data of output states of polarization using particle swarm optimization (PSO) as ellipsoid data fitting algorithm. It was shown that the PSO algorithm was powerful for ellipsoid data fitting with high precision within 250 ms.
基金supported by the National Natural Science Foundation of China(Grant Nos.12175321,12150005,11975021,11675275,and U1932101)the National Key Research and Development Program of China(Nos.2023YFA1606000,2020YFA0406300,and 2020YFA0406400)+2 种基金the State Key Laboratory of Nuclear Physics and Technology,PekingUniversity(Nos.NPT2020KFY04 and NPT2020KFY05)Chinese Academy of Sciences(CAS)Large-Scale Scientific Facility ProgramNational College Students Innovation and Entrepreneurship Training Program,Sun Yatsen University。
文摘Modern particle physics experiments usually rely on highly complex and large-scale spectrometer devices.In high energy physics experiments,visualization helps detector design,data quality monitoring,offline data processing,and has great potential for improving physics analysis.In addi-tion to the traditional physics data analysis based on statistical methods,visualization provides unique intuitive advantages in searching for rare signal events and reducing background noises.By applying the event display tool to several physics analyses in the BESIII experiment,we demonstrate that visualization can benefit potential physics discovery and improve the signal significance.With the development of modern visual-ization techniques,it is expected to play a more important role in future data processing and physics analysis of particle physics experiments.
