【摘要】 引入基于Hilbert变换的相空间重建手段,对合肥光源(HLS)逐束团测量系统采集的数据进行了全面的分析,其中包括单个束流位置监测器(BPM)数据的相空间重建,逐圈逐束团振荡相位信息、束团振荡模式信息、逐柬团横向工作点(tune值)变换．提出了新的分析束团tune值的手段,提供传统方法无可比拟的更高的时间和频率分辨率．还对不同模式的阻尼率进行了计算,这为衡量逐束团反馈系统的效果提供了确实可靠的方法．更多还原

【Abstract】 In this paper, we introduce the phase space reconstruction method based on Hilbert transform to comprehensively analyse the Bunch-by-bunch measurement record. The analyzing results include one beam position monitor (BPM) phase space reconstruction, bunch oscillation’s phase information, mode diagnosing, tune evolvement regressed from phase space and the damping rate of the mode and bunch oscillation. The new method to calculate the tune evolvement exhibits a very high resolution both in time domain and frequency domain without any time domain average. The exponential fit to the mode and bunch oscillation damping curve are also exhibited in this paper.更多还原