| 原子干涉仪灵敏度的阿伦方差分析 |
| Allan variance analysis of atomic interferometer sensitivity |
| |
| HTML 查看全文 查看/发表评论 下载PDF阅读器 |
| 中文摘要: |
| 针对分析原子干涉仪灵敏度时，采用哪种阿伦方差容易出现混淆的问题，系统地给出了阿伦方差、重叠阿伦方差和修正阿伦方差三种形式在时域和频域中的详细推导，分析了它们对五类典型噪声的分辨能力，指出修正阿伦方差具有更加适合评估原子干涉仪长期稳定性的特点。基于修正阿伦方差在频域中的表达式，文中还首次给出了存在测量死区的原子干涉仪灵敏度与噪声功率谱之间的传递函数，通过分析其特点，指出了提高原子干涉仪灵敏度的两条具体途径，为原子干涉仪技术的进一步发展和评价奠定了更加扎实的理论基础。 |
| 英文摘要: |
| In view of the confusion of using different Allan variance to analyze the sensitivity of atomic interferometer, this paper systematically gives the detailed derivation of Allan variance, overlapping Allen variance and modified Allan variance in time domain and frequency domain, analyzes their resolution to five kinds of typical noise, and points out that the modified Allan variance is more suitable for evaluating the long?term stability of atomic interferometer. Based on the expression of modified Allan variance in frequency domain, the transfer function between sensitivity and noise power spectrum of atomic interferometer with measurement dead zone is given for the first time. By analyzing its characteristics, two specific ways to improve the sensitivity of atomic interferometer are pointed out. These studies have laid a more solid theoretical foundation for the further development and evaluation of atomic interferometer technology. |
|
| 中文关键词: 原子干涉仪 阿伦方差 传递函数 灵敏度 |
| 英文关键词:atomic interferometer Allan variance transfer function sensitivity |
| 基金项目: |
| DOI：10.11823/j.issn.1674-5795.2023.04.12 |
| 引用本文：邓敏, 李佳佳, 王柯穆, 罗晖, 汪之国.原子干涉仪灵敏度的阿伦方差分析[J].计测技术,2023,(4):. |
| 关闭 |
|
|
|
