| 数字束流位置信号处理算法优化 |
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| 引用本文： | 赖龙伟, 冷用斌, 易星, 等. 数字束流位置信号处理算法优化[J]. 强激光与粒子束, 2013, 25: 109-113. doi: 10.3788/HPLPB20132501.0109 |
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| 作者姓名： | 赖龙伟 冷用斌 易星 阎映炳 陈之初 |
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| 作者单位： | 1.中国科学院 上海应用物理研究所, 上海 201 800;;;2.中国科学院 研究生院, 北京 1 00049 |
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| 摘 要： | 在已有束流位置信号下变频算法的设计与实现的基础上，优化了算法时序，设计实现了数字自动增益控制、慢应用信号处理等模块功能，能获得逐圈、快应用及闭轨数据。上海光源储存环上的束流测试结果显示，处理器可正确获取包含束流真实运动的多速率位置数据。在174 mA储存环流强、500个束团的填充模式时，逐圈位置数据分辨力达到0.84 m，快应用位置数据分辨力达到0.44 m，闭轨位置数据分辨力达到0.23 m，性能满足设计要求。
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| 关 键 词： | 数字束流位置测量 束流位置信号处理 逐圈 快应用 闭轨 |
| 收稿时间： | 2012-02-10 |
| 修稿时间： | 2012-05-07 |
Optimization of signal processing algorithm for digital beam position monitor |
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| Lai Longwei, Leng Yongbin, Yi Xing, et al. Optimization of signal processing algorithm for digital beam position monitor[J]. High Power Laser and Particle Beams, 2013, 25: 109-113. doi: 10.3788/HPLPB20132501.0109 |
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| Authors: | Lai Longwei Leng Yongbin Yi Xing Yan Yingbing Chen Zhichu |
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| Affiliation: | 1. Shanghai Institute of Applied Physics,Chinese Academy of Sciences,Shanghai 201800,China;;;2. Graduate University of Chinese Academy of Sciences,Beijing 100049,China |
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| Abstract: | Based on turn-by-turn (TBT) signal processing, the paper emphasizes on the optimization of system timing and implementation of digital automatic gain control, slow application (SA) modules. Beam position including TBT, fast application (FA) and SA data can be acquired. On-line evaluation on Shanghai Synchrotron Radiation Facility (SSRF) shows that the processor is able to get the multi-rate position data which contain true beam movements. When the storage ring is 174 mA and 500 bunches filled, the resolutions of TBT data, FA data and SA data achieve 0.84, 0.44 and 0.23 m respectively. The above results prove that the design could meet the performance requirements. |
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| Keywords: | digital beam position monitor beam position signal processing turn-by-turn fast application close orbit |
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