| 题名 | 基于DSP与FPGA的氢钟数字伺服系统的研究 |
| 作者 | 陈文星 |
| 学位类别 | 硕士 |
| 答辩日期 | 2007-06-12 |
| 授予单位 | 中国科学院上海天文台 |
| 授予地点 | 上海天文台 |
| 导师 | 林传富 |
| 关键词 | 数字伺服 数字信号处理器 现场可编程逻辑门阵列 |
| 其他题名 | Digital servo-control system of Hydrogen Maser based on DSP & FPGA |
| 中文摘要 | Hydrogen Maser is the extremely high-performance time and frequency standard, which all terms of performance are excellent. It has played an important role in the fields of the fundamental theory, navigation, radar, geodesic survey, astronomical observation, communication etc. With the advance of the space science technology, the development of the compact and portable hydrogen maser with high performance is in great demand. The main content of this paper is to make improvement of the Miniature Passive Maser. The improvement can promote the qualification of the original system and realize intelligent control. Meanwhile, it reduces the size of the circuit board. This paper first analyses the fundamental of servo system and its influence on the frequency stability. And the principle of the PID controller is introduced briefly. Based on the analysis, it computes the parameters of demanded components and makes selections accordingly. Chapter 3 and Chapter 4 give a detailed account of hardware and software design process. After many times of test and a long time of verification, we give the final test results of the system as well as analysis in Chapter 5. The results indicate that the newly designed system has accomplished prospective purpose, and some parameters has surpassed prospective index. At last, the paper gives some of my suggestions about the followed improvement of the system. |
| 英文摘要 | 氢原子钟是一种高精度的时间和频率标准，它的各项性能都是十分优秀的，在基础理论研究、导航、雷达、大地测量、天文观测和通信等领域都具有重要的作用。随着空间科学技术的发展，小型、易搬运、高性能氢原子钟的研制势在必行。 本文研究的主要内容是对现有的被动型小氢钟的伺服电路部分进行改进，在减小整个伺服电路体积的同时提高原系统的技术指标并且实现智能化控制。本文首先分析了伺服系统工作的基本原理以及伺服系统对频率稳定度造成的影响，并对PID控制器原理进行了阐述。在此基础之上，对所需元件的性能进行了计算和筛选。在第三章和第四章中详细介绍了硬件和软件的设计过程。在对电路进行反复的测试及长时间检验后，在第五章给出了系统的最终测试结果和分析，测试结果表明设计达到了预期的目的，有些参数还超过了预期指标。文章的最后给出了伺服系统未来设计改进的一些想法。 |
| 语种 | 中文 |
| 公开日期 | 2011-07-01 |
| 页码 | 82 |
| 内容类型 | 学位论文 |
| 源URL | [http://119.78.226.72//handle/331011/14692]  |
| 专题 | 上海天文台_中国科学院上海天文台学位论文 |
| 推荐引用方式 GB/T 7714 | 陈文星. 基于DSP与FPGA的氢钟数字伺服系统的研究[D]. 上海天文台. 中国科学院上海天文台. 2007. |
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