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- W2391784962 abstract "In order to ensure that the beam quality is well enough,we need to precisely control the frequency,amplitude and phase of cavity electric field.Traditional control system consists of amplitude loop and phase loop.And these two loops control amplitude and phase stability respectively.The digital low level radio frequency(LLRF) system,which uses advanced digital control technology,needs only one feed-back loop to control amplitude and phase stability.The phase control precision and stability of the system are higher than the traditional control system.The LLRF system is based on field programmable gate array(FPGA) and digital signal processing(DSP),and implemented by direct digital frequency synthesis(DDS) and digital orthogonal modulation and demodulation(I/Q) technology.The digital LLRF system has been tested in a long-term stability and high-power experiments.The amplitude deviation is lower than ±1%,and phase control accuracy is within ±1°." @default.
- W2391784962 created "2016-06-24" @default.
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- W2391784962 date "2012-01-01" @default.
- W2391784962 modified "2023-09-27" @default.
- W2391784962 title "Research of Digital Low Level Radio Frequency Control System for HIRFL" @default.
- W2391784962 hasPublicationYear "2012" @default.
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