基于Cortex-M3处理器的时间交替采样系统的设计  

Design of Time-Interleaved Data Acquisition System Based on Cortex- M3 Processor

作　　者：赵祥[1] 周建斌[1] 周靖[1] 喻杰[1] 郝宽[1] 

机构地区：[1]成都理工大学核技术与自动化工程学院,四川成都610059

出　　处：《仪表技术与传感器》2015年第12期100-102,共3页Instrument Technique and Sensor

摘　　要：设计了一种基于Cortex-M3处理器的时间交替采样系统,阐述了抗混叠滤波调理电路和STM32F103VET6处理器等软硬件设计的技术要点。此外,基于处理器内部集成的两个ADC模块,系统实现了对信号的时间交替采集。测试结果表明,系统在原有12位精度、1MSPS的采样基础上,将数据采样率提升到了2MSPS。A time-interleaved data acquisition system based on Cortex- M3 processor was designed in the paper. Some important technical points including anti- aliasing filter conditioning circuit design and STM32F103VET6 processor software design were presented. In addition,the alternate signal acquisition system was realized based on the two integrated ADC modules of processor.The test results show that the system sampling rate is raised to 2MSPS from 1MSPS with keeping ADC original 12- bits precision.

关 键 词：时间交替采样 抗混叠滤波器 32位处理器 直接存储器存取 

分 类 号：TP274[自动化与计算机技术—检测技术与自动化装置]