Fig. 1. Structure of digital beam position monitor system

Fig. 2. Single pass digital BPM system function block

Fig. 3. Single pass BPM signal processing process

Fig. 4. Power division/delay/synthesis of analog signals

Fig. 5. Copy and splice of ADC sampling data

Fig. 6. Band pass filter design

Fig. 7. Schematic diagram for calculating the amplitude of a certain path

Fig. 8. Calculation of beam position using the center of gravity method

Fig. 9. Schematic diagram of BPM analog signal and ADC data generation process

Fig. 10. X/Y-direction position resolution and its standard value

Fig. 11. X/Y-direction position resolution and its STD value

Fig. 12. Test results of the “pure time domain absolute value integration method” for actual beam flow

Fig. 13. Test results of the method in this article