基于DSP的氢钟高精度控制系统  

High Precision Control System in Hydrogen Maser Based on DSP

作　　者：曲豹创[1] 陈从颜[1] 刘铁新[2] 邱实[1] 

机构地区：[1]东南大学空间科学技术研究院,南京210096 [2]中国科学院上海天文台,上海200030

出　　处：《数据采集与处理》2009年第B10期323-327,共5页Journal of Data Acquisition and Processing

基　　金：国家自然科学基金(10603012;10778704)资助项目;国家"863"计划(2004AA306H10;2009AA01Z314)资助项目

摘　　要：介绍了基于数字信号处理器(DSP)应用于被动型氢钟中的伺服控制系统,针对晶振控制电压精度高和控制范围大的特点,设计了高精度电压输出和高速误差采集电路,并在硬件的基础上完成了软件驱动程序、主程序开发和数字式PID控制算法设计。硬件测试的结果显示该控制系统满足了锁定过程控制要求,并取得了预期的控制效果。A control system in passive hydrogen maser based on DSP is introduced. A high precision volt output circuit is designed according to the characteristics of VCXO, such as the high precision control voltage and the wide control range. A high precision voltage output and high speed error signal collection circuit are designed. Then, the driver program is written for the hardware. Moreover, the main routine and digital PID control algorithm are designed to apply to the passive hydrogen maser. The result of hardware test shows that the system satisfies the control needs of the frequency location, and the expected control effect is achieved.

关 键 词：氢钟 控制系统 晶振频率 数字信号处理器 

分 类 号：TP332.3[自动化与计算机技术—计算机系统结构]