西安电子科技大学学报（自然科学版）2017，Vol.44Issue(4)：75-79,5.DOI:10.3969/j.issn.1001-2400.2017.04.014
模糊区特性下高精度频率测量技术
High precision frequency measurement based on the characteristic of the fuzzy area
摘要
Abstract
The phase difference change is random in the discrete fuzzy area by considering the limit of device resolution,which the device can not stably capture,and the precision of the measured value only reaches the level of ns,but the phase difference change in the concentrated fuzzy area is step by step,and the device can stably capture the change of ps.By using the fuzzy area conversion technology,a high precision frequency measurement is designed.Through computer control and frequency synthesis,the discrete fuzzy area is converted to the concentrated fuzzy area,the ps stability properties of phase difference change on the border of the concentrated fuzzy area is used,the precision can be improved two or three orders of magnitude,and the high precision measurement in a wide range is achieved.关键词
频率测量/相位差变化/测量分辨率/模糊区Key words
frequency measurement/phase difference change/measurement resolution/fuzzy area分类
信息技术与安全科学引用本文复制引用
贾兆旻,李智奇,周渭,杨旭海,孙保琪,苗苗,董绍锋..模糊区特性下高精度频率测量技术[J].西安电子科技大学学报（自然科学版）,2017,44(4):75-79,5.基金项目
国家自然科学基金资助项目(61201288,11403017,11503019,11173026) （61201288,11403017,11503019,11173026）
