基于FPGA的大气数据采集系统的设计  

Design of Air Data Acquisition System Based on FPGA

作　　者：王鑫[1] 谭学林[1] 段晓超[1] 

机构地区：[1]中国电子科技集团第三十八研究所,安徽合肥230088

出　　处：《机电工程技术》2015年第3期50-53,共4页Mechanical & Electrical Engineering Technology

摘　　要：大气数据的采集是影响无人机飞行控制的主要因素,为了实现对该信号源的采样,根据大气数据的高度和空速的测量原理,选用简易小型空速管作为采样通路,采用芯片级动压和静压传感器作为信号源,设计了基于FPGA的大气数据采集系统,并且在DSP处理器上实现对数据的算法处理。最后通过在某小型无人机上的飞行试验结果表明,该大气数据采集系统能够实现对空速和气压高度的获取。Air data acquisition is the main factors affect the free flight control, in order to realize the sampling of the signal source, according to the measurement principle of the air data altitude and airspeed, choose the simple small pilot tube as the sampling path, using chip level dynamic pressure and static pressure sensor as signal source, the design of atmospheric FPGA data acquisition system based on the algorithm, and the realization of the data processing in DSP processor. Finally through the show in a small unmanned flight test resuhs on tile UAV, atmospheric data acquisition system can achieve a high degree of access to space velocity and pressure.

关 键 词：无人机 空速 气压高度 FPGA 

分 类 号：TP274.2[自动化与计算机技术—检测技术与自动化装置]