宇航计测技术
宇航計測技術
우항계측기술
JOURNAL OF ASTRONAUTIC METROLOGY AND MEASUREMENT
2010年
1期
20-23
,共4页
郑胜峰%楼梅燕%王海%周渭%姚锡钦
鄭勝峰%樓梅燕%王海%週渭%姚錫欽
정성봉%루매연%왕해%주위%요석흠
频标比对%~+李沙育图%等效鉴相频率%图像处理
頻標比對%~+李沙育圖%等效鑒相頻率%圖像處理
빈표비대%~+리사육도%등효감상빈솔%도상처리
Index Term Frequency comparison%~+Lissajous curve%Equivalent phase comparison frequency%Image processing
基于对李沙育图进行图像处理的思想,从等效鉴相频率的原理出发,提出了一种新型的高精度频标比对系统.该系统可以捕捉图像翻转周期非常短的李沙育图,通过图像处理可以比对频差比较大的信号.并且构成该系统的设备简单,精度却可以大大提高.
基于對李沙育圖進行圖像處理的思想,從等效鑒相頻率的原理齣髮,提齣瞭一種新型的高精度頻標比對繫統.該繫統可以捕捉圖像翻轉週期非常短的李沙育圖,通過圖像處理可以比對頻差比較大的信號.併且構成該繫統的設備簡單,精度卻可以大大提高.
기우대리사육도진행도상처리적사상,종등효감상빈솔적원리출발,제출료일충신형적고정도빈표비대계통.해계통가이포착도상번전주기비상단적리사육도,통과도상처리가이비대빈차비교대적신호.병차구성해계통적설비간단,정도각가이대대제고.
A new high precision frequency comparison system based on the idea of the Lisaajous curve processing and the concept of the equivalent phase comparison frequency is introduced in this paper.Lissajous curve with short image cycle periods can be caught and signals with large frequency difference can be compared by this system.The system can be built up by some simple devices,but the measurement precision can be improved significantly.