CAJ | 학술논문

介绍了为4πβ（ LSC）-γ放射性活度国家基准测量数字符合平台（ Digital Coincidence Plat-form， DCP）数据采集提供高精度时钟与同步测试信号源的实现方法。采用了基于PLL＋DDS技术的电路设计方案，提供了系统需要的时钟及正弦波测试信号源。设计基于PXI机箱，通过ALTERA公司的IP软核PCI_CORE进行各板卡间的通信。
개소료위4πβ（ LSC）-γ방사성활도국가기준측량수자부합평태（ Digital Coincidence Plat-form， DCP）수거채집제공고정도시종여동보측시신호원적실현방법。채용료기우PLL＋DDS기술적전로설계방안，제공료계통수요적시종급정현파측시신호원。설계기우PXI궤상，통과ALTERA공사적IP연핵PCI_CORE진행각판잡간적통신。
It describes one method to provide high -precision clock and test -synchronization signal source for the 4πβ( LSC)-γradioactivity digital coincidence platform data collection system .The circuit design based on PLL+DDS technology , PLL provides system clock with low jitter , while DDS generates sine wave for synchro-nization test .On PXI chassis , the ALTERA PCI_CORE is responsible for the communication between the plug-in boards with the zero slot .