精密频率测量边沿效应的特性分析  

Characteristic analysis of the border effect in precision frequency measurement

作　　者：偶晓娟 周渭[2] 易韦韦 张晓艳[3] 李晶 

机构地区：[1]宇航动力学国家重点实验室,陕西西安710043 [2]西安电子科技大学机电工程学院,陕西西安710071 [3]西安卫星测控中心,陕西西安710043

出　　处：《西安电子科技大学学报》2016年第3期144-148,共5页Journal of Xidian University

基　　金：国家自然科学基金资助项目(61201288;10978017);宇航动力学国家重点实验室开放基金资助项目(2013ADL-DW0402)

摘　　要：在精密频率测量中,通过相位处理的方法能够得到很高的测量分辨率,而边沿效应的发现及应用对精密频率测量精度的提高起着至关重要的作用,文中详细分析了边沿效应的产生机理,并通过对边沿效应特性在精密频率测量方面的应用进行了详细分析及验证.在与频差倍增器结合的测量实验中,经二级倍增后采用边沿处理的频率稳定度可达4.8×10^(-13)/s,进一步揭示了依靠检测装置分辨率模糊区边沿,不仅保证了高的分辨率,而且更保证了在噪声环境中测量结果的正确性.In the precision frequency measurement, a high measurement resolution can be obtained by the phase processing methods and the border effect plays a vital role in improving the measurement accuracy. This paper makes a detailed analysis of the generation mechanism of the border effect. By experiments, the application of the characteristics of the border effect is analyzed and validated in the precision frequency measurement. The combinative test experiments with multiplier amplifiers show that the frequency stability can reach 4.8 × 10^-13/s based on the border effect after the signal is processed by two multiplier amplifier sections. The results further reveal that it can ensure not only the high resolution but also the authenticity of the measurement results in the noise environment relying on the border of the resolution fuzzy area of the detection instruments.

关 键 词：边沿效应 分辨率稳定度 精密频率测量 模糊区 

分 类 号：TM935.1[电气工程—电力电子与电力传动]