用于微惯性测量单元的FPGA数据采集系统

Data acquisition and processing system used in MIMU based on FPGA

本文结合微惯性测量单元(MIMU)的应用,设计了基于FPGA的数据采集与处理系统,系统中,用低噪声、低功耗芯片对模拟电路进行信号的调整和采集,利用FPGA生产商Altera公司的NiosⅡ处理器进行实时信号处理,并移植了uCOS-Ⅱ实时操作系统。实验结果表明该系统具有体积小、重量轻、精度较高、低功耗、实时性好等优点,非常适合于小型飞行器、车辆导航等众多军用和民用领城。

In this article, MIMU data acquisition and the using low noise and low power waste chips acquired the processing system, based on FPGA is designed. In the system, analogous circuit signals and adjusted the signals. Using Nios Ⅱ processor made by altera corporation processed real-time digital signal, and uCOS-Ⅱ was adopted. The experimental result indicate that the system has small volume, little weight, low power waste, preferable precision and good real-- time ability,and it＇s very fit for many military and civil field application, such as micro-aircraft and vehicle navigation.