[1]孙慧贤,张玉华,黄欣鑫,等.基于数字锁相环的无人机测控链通用位同步方法[J].探测与控制学报,2020,42(03):44.[doi:.]
 SUN Huixian,ZHANG Yuhua,HUANG Xinxin,et al.Universal Symbol Timing Synchronization Method for UAV TT&C Link Based on Digital Phase Lock Loop[J].,2020,42(03):44.[doi:.]
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基于数字锁相环的无人机测控链通用位同步方法()
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《探测与控制学报》[ISSN:1008-1194/CN:61-1316/TJ]

卷:
42
期数:
2020年03
页码:
44
栏目:
出版日期:
2020-06-15

文章信息/Info

Title:
Universal Symbol Timing Synchronization Method for UAV TT&C Link Based on Digital Phase Lock Loop
文章编号:
1008-1194(2020)03-0044-07
作者:
孙慧贤12张玉华1黄欣鑫1全厚德1唐友喜2
1.陆军工程大学石家庄校区,河北 石家庄 050003;2.电子科技大学通信抗干扰国家级重点实验室,四川 成都 611731
Author(s):
SUN Huixian12ZHANG Yuhua1HUANG Xinxin1QUAN Houde1TANG Youxi2
1. Shijiazhuang Campus of Army Engineering University, Shijiazhuang 050003, China; 2. National Key Laboratory of Science and Technology on Communications, University of Electronic Science and Technology of China, Chengdu 611731, China
关键词:
无人机测控链位同步数字锁相环
Keywords:
UAV TT&C communication linksymbol timing synchronizationdigital phase lock loop
分类号:
TN924
DOI:
.
文献标志码:
A
摘要:
针对传统锁相环的位同步方法电路设计复杂、链路适应性差等问题,提出基于数字锁相环的无人机测控链通用位同步方法。该方法将传统锁相环与内插调整鉴相方法结合,在不改变本地时钟的条件下实现了位定时时刻的调整。基于FPGA设计并实现了全数字位同步锁相环电路,通过数字电路定点仿真验证了电路的有效性及同步性能。仿真结果表明,该方法在位同步过程中所需采样点少,易于高速实现,适合在软件无线电平台上实现,且具有定时误差检测性能不受载波相位恢复影响的优点,具有一定的通用性,可应用于其他无人机测控链位同步电路中。
Abstract:
Aiming at the problems of complex circuit design and poor link adaptability of traditional symbol timing synchronization method based on the phase-locked loop (PLL), a universal symbol timing synchronization method for UAV TT&C chain based on digital PLL was proposed. This method combined the traditional PLL with the interpolation adjustment and phase discrimination method, and realized the adjustment of symbol timing without changing the local clock. Based on the FPGA, the full digital bit synchronous phase-locked loop circuit was designed and implemented. The simulations demonstrated the validity of theory result, and the synchronization performance of the circuit was analyzed. The results showed that the designed synchronization circuit could complete the symbol timing synchronization, and fewer sampling points needs , and was easy to realize at high speed. It also could be applied to other UAV TT&C Link symbol timing synchronization circuits.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2020-01-07
基金项目:国家自然科学基金项目资助(61531009;61471108);国家重大专项基金项目资助(2016ZX03001009)
作者简介:孙慧贤(1980—),男,内蒙古临河人,博士,研究方向:软件无线电、战术无线通信抗干扰技术。E-mail:Ares_sun@163.com
更新日期/Last Update: 2020-07-15