Classical and modern power spectrum estimation for tune measurement in CSNS RCS

Precise measurement of betatron tune is required for good operating condition of CSNS RCS. The fractional part of betatron tune is important and it can be measured by analyzing the signals of beam position from the appointed BPM. Usually these signals are contaminated during the acquisition process,...

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Bibliographic Details
Published inChinese physics C Vol. 37; no. 11; pp. 79 - 83
Main Authors Yang, Xiao-Yu, Xu, Tao-Guang, Fu, Shi-Nian, Zeng, Lei, Bian, Xiao-Juan
Format Journal Article
LanguageEnglish
Published 01.11.2013
Subjects
Beams (radiation)
Betatrons
Contamination
Marketing
Mathematical analysis
Position (title)
Position measurement
RCS测量
Simulation
信号采集
功率谱估计
功率谱方法
古典
感应加速器
精确测量
频率分辨率
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Summary:Precise measurement of betatron tune is required for good operating condition of CSNS RCS. The fractional part of betatron tune is important and it can be measured by analyzing the signals of beam position from the appointed BPM. Usually these signals are contaminated during the acquisition process, therefore several power spectrum methods are used to improve the frequency resolution. In this article classical and modern power spectrum methods are used. In order to compare their performance, the results of simulation data and IQT data from J-PARC RCS are discussed, It is shown that modern power spectrum estimation has better performance than the classical ones, though the calculation is more complex.
Bibliography:11-5641/O4
Precise measurement of betatron tune is required for good operating condition of CSNS RCS. The fractional part of betatron tune is important and it can be measured by analyzing the signals of beam position from the appointed BPM. Usually these signals are contaminated during the acquisition process, therefore several power spectrum methods are used to improve the frequency resolution. In this article classical and modern power spectrum methods are used. In order to compare their performance, the results of simulation data and IQT data from J-PARC RCS are discussed, It is shown that modern power spectrum estimation has better performance than the classical ones, though the calculation is more complex.
tune, signal processing, power spectrum estimation, frequency resolution, IQT data
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:1674-1137
0254-3052
DOI:10.1088/1674-1137/37/11/117003