刘民, 孙毅, 古兆兵, 等. 2020年再议协调世界时UTC闰秒问题[J]. 时间频率学报, 2021, 44(3): 153-162.

　　LIU Min, SUN Yi, GU Zhao-bing, et al. Re-discussed about leap second in coordinate

　　universal time in 2020[J]. Journal of Time and Frequency, 2021, 44(3):153-162.

　　李辉, 吴华兵, 赵当丽. 晶振对飞行器时频同步系统的影响[J]. 时间频率学报, 2021, 44(3): 163-171.

　　LI Hui, WU Hua-bing, ZHAO Dang-li. The effect of crystal oscillator on the flight vehicle time and frequency synchronization system[J]. Journal of Time and Frequency，2021，44(3): 163-171.

　　张军, 袁媛, 陈明. 高精度时统系统中固有时延温度影响及其应对措施分析[J]. 时间频率学报, 2021, 44(3):172-182.

　　ZHANG Jun, YUAN Yuan, CHEN Ming. Analysis and countermeasures temperature effect of fixed time delay in high precision time system[J]. Journal of Time and Frequency, 2021, 44(3): 172-182.

　　王腾辉, 武建锋, 焦喜康, 等. 基于最小HDOP选站下的到达时间差定位算法[J]. 时间频率学报, 2021, 44(3): 183-196.

　　WANG Teng-hui, WU Jian-feng, JIAO Xi-kang, et al. Positioning algorithm based on the time difference of arrival with the minimum HDOP of station selection[J]. Journal of Time and Frequency, 2021, 44(3): 183-196.

　　缪新育, 胡昌军, 李曙方, 等. NTP服务器压力测试方法的设计与实现[J]. 时间频率学报, 2021, 44(3): 197-203.

　　MIAO Xin-yu, HU Chang-jun, LI Shu-fang, et al. Design and implementation of NTP server stress test method[J]. Journal of Time and Frequency, 2021, 44(3): 197-203.

　　李浩, 罗近涛, 潘之辰, 等. 一种基于DSPSR和GPU的脉冲星相干消色散基带数据处理技术[J]. 时间频率学报, 2021, 44(3): 204-214.

　　LI Hao, LUO Jin-tao, PAN Zhi-chen, et al. A coherent de-dispersion processing technology on pulsar baseband data based on DSPSR and GPU[J]. Journal of Time and Frequency, 2021, 44(3): 204-214.

　　戴顺, 罗近涛, 刘海文, 等. 2020年6月21日日环食低频时码信号监测[J]. 时间频率学报, 2021, 44(3): 215-221.

　　DAI Shun, LUO Jin-tao, LIU Hai-wen, et al. Observations of low frequency time-code signal during the annular eclipse of June 21, 2020[J]. Journal of Time and Frequency，2021，44(3): 215-221.

　　杨欣, 李伟超, 王霄, 等. 1.05 m激光望远镜基墩改造与圆顶偏心改正[J]. 时间频率学报, 2021, 44(3): 222-230.

　　YANG Xin, LI Wei-chao, WANG Xiao, et al. Reformation of 1.05 m laser telescope base pier and correction of eccentricity of dome[J]. Journal of Time and Frequency, 2021, 44(3): 222-230.