Acknowledgement
The authors are grateful to Cheng Zeng and Yang Wang of Central South University and Jiliang Wu and Yuan Bin of Xiamen University for their help with the test. The authors are also grateful to Weixu Song and Qinming Feng of BBK Test Systems Co. Ltd for their work with the pulsar control system. This research is supported by the National Natural Science Foundation of China (51878630, 51678538), the Heilongjiang Provincial Natural Science Fund for Fine Youth Scholars (YQ2020E004), the Heilongjiang Provincial Natural Science Fund for Distinguished Young Scholars (JC2018018), Heilongjiang Touyan Innovation Team Program. Any opinions, findings, conclusions, or recommendations expressed in this paper are those of the authors, and do not necessarily reflect the views of the sponsors.
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