Offline research of digital beam position monitor algorithm based on BEPC Ⅱ

Zhang Xing'er; Du Yaoyao; Zhang Qi; Wang Zhizhuo; Zhou Jiashen; Lan Qinghong; Huang Xiyang; Lu Yanhua; Liu Fang; Ma Huizhou; Ye Qiang; Sui Yanfeng; Yue Junhui; Cao Jianshe; Wei Shujun

doi:10.11884/HPLPB201830.170523

Volume 30 Issue 10

Oct. 2018

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Article Navigation > High Power Laser and Particle Beams > 2018 > 30(10): 105103

Zhang Xing'er, Du Yaoyao, Zhang Qi, et al. Offline research of digital beam position monitor algorithm based on BEPC Ⅱ[J]. High Power Laser and Particle Beams, 2018, 30: 105103. doi: 10.11884/HPLPB201830.170523

Citation:

Zhang Xing'er, Du Yaoyao, Zhang Qi, et al. Offline research of digital beam position monitor algorithm based on BEPC Ⅱ[J]. High Power Laser and Particle Beams, 2018, 30: 105103. doi: 10.11884/HPLPB201830.170523

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Offline research of digital beam position monitor algorithm based on BEPC Ⅱ

doi: 10.11884/HPLPB201830.170523

Zhang Xing'er^{1, 2
,},
Du Yaoyao^{1, 2},
Zhang Qi^{1, 2},
Wang Zhizhuo^{1, 2},
Zhou Jiashen^{1, 2},
Lan Qinghong^{1, 2},
Huang Xiyang¹,
Lu Yanhua¹,
Liu Fang¹,
Ma Huizhou¹,
Ye Qiang¹,
Sui Yanfeng^{1, 2},
Yue Junhui¹,
Cao Jianshe¹,
Wei Shujun¹

1.
Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
2.
University of Chinese Academy of Sciences, Beijing 100049, China

Received Date: 2017-12-25
Rev Recd Date: 2018-04-09
Publish Date: 2018-10-15

Abstract

Abstract

The signal processing algorithm is one of the keys for digital beam position monitor(BPM) system. In order to optimize the digital BPM algorithm effectively, it is important and significant to research the BPM algorithm offline by using MATLAB. In this paper, the principle and framework of digital BPM algorithm are introduced firstly, the raw ADC data is subsequently obtained from BEPC Ⅱ based on the digital BPM hardware platform, which is domestically made by Institute of High Energy Physics, Chinese Academy of Sciences. Then NCO module, CIC filter, FIR filter and TBT position data calculation modules are designed with MATLAB, and the specific design parameters of each module are provided. Finally, each algorithm module is tested using raw ADC data and signal spectrograms are given. The turn-by-turn position resolution in horizontal and vertical directions under the actual beam are 4.55 μm and 4.28 μm. The offline research provides a reliable theoretical basis for the implementation and optimization of FPGA algorithm.
- digital beam position monitor,
- turn-by-turn position data,
- multistage decimation and filter

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References

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