Against electromagnetic interference(EMI)

a method based on DSP control

combining hardware protection with software reinforcement

is proposed in this paper.A repetition rate pulse source system is developed.A pulse source provides 5-way repetition rate pulses of 50 kV

with a minimum gap of 100 μs between two neighboring ways

and the pulses can be regulated continuously in 10-μs steps.A bounded-wave simulator system is used to prove feasibility of the method and the software reinforcement technology.The experimental results show that the DSP system using software reinforcement technology is well capable of reducing EMI.The system works properly in a simulated environment of repetition rate electromagnetic pulses.