一种高精度频标信号鉴相方法  

A High-accuracy Method of Phase Measurement of Frequency Standard Signals

作　　者：马文起[1] 田之俊[1] 杨伟军[1] 冯志德 刘旭东 MA Wenqi;TIAN Zhijun;YANG Weijun;FENG Zhide;LIU Xudong(The 54th Research Institute of CETC,Shijiazhuang 050081,China)

机构地区：[1]中国电子科技集团公司第五十四研究所,河北石家庄050081

出　　处：《计算机与网络》2023年第16期53-56,共4页Computer & Network

摘　　要：针对航天测控、高精度干涉测量等领域对高精度频标信号相位测量的需求,提出了一种基于FPGA和微处理器硬件平台的高精度频标信号鉴相方法。介绍了该方法的系统组成和工作原理,阐述了其工作流程。搭建了高精度鉴相方法验证平台,对鉴相精度等指标进行了测试。试验结果表明,该方法对100 MHz频标信号相位测量精度可达到0.058°,相位测量偏差在±0.15°。基于该方法的光纤时频传输系统也验证了方法的有效性。A high-accuracy method of phase measurement of frequency standard signals is presented based on the microprocessor and FPGA,in order to meet the requirements of that in the fields of aerospace TT&C and high-accuracy interferometer.The system composition and the principle of the method are introduced,and the workflow is elaborated.A verification platform of the high-accuracy phase measurement method is built,and the accuracy of phase measurement and other indices are tested.The results show that the phase of the 100 MHz frequency standard signal can be measured with an accuracy of 0.058°,and the deviation is±0.15°.The effectiveness is also verified with an optical fiber time-frequency transmission system based on this method.

关 键 词：相位测量 COSTAS环 频标信号 标校 

分 类 号：TN81[电子电信—信息与通信工程]