一种基于DSP/FPGA的高转速载体角速度解算系统设计  

Design of angular velocity resolving system for high rotation carrier based on DSP and FPGA

作　　者：罗林燕[1] 吴伯农[1] 

机构地区：[1]北方工业大学机电工程学院,北京100144

出　　处：《现代电子技术》2014年第15期89-93,共5页Modern Electronics Technique

摘　　要：由于陀螺仪量程较小,难以应用于高转速载体的姿态测试中,因此设计了以MEMS线加速度计ADXL377和地磁传感器HMC1043为微惯性测量单元(MIMU)的微型角速度解算系统。系统以FPGA作为协处理器控制ADC模块对11路传感器信号的同步转化,并对转换后的数据进行及时采集、缓存;以DSP芯片TMS320C6713作为主处理器完成角速度的实时解算。系统最大可测角速度达30 r/s,信号的采集、解算实时性强,角速度的测量精度高,而且电路半径仅5 cm,安装方便、功耗低。To solve the problem that gyroscope can not be used in the attitude testing of high rotation carrier due to its smmal measuring range,a mini angular velocity resolving system was designed to detect angular velocity. The system takes MEMS ac-celerometer ADXL377 and geomagnetic sensor HMC1043 as MIMU,FPGA as its coprocessor to control the ADC module to make the 11-way sensor signals converted synchronously,and DSP chip TMS320C6713 as core processor to achieve real-time re-solving of angular velocity. The system has a large measuring range and high-accuracy in detection of angular velocity,and high performance in high-speed real-time information accquisition and resolving,as well as small size,easy installation and low power consumption. The system′s maximum angular detecting speed is up to 30 r/s.

关 键 词：无陀螺捷联式惯性导航系统 角速度解算 ADXL377 TMS320C6713 

分 类 号：TN911.734[电子电信—通信与信息系统]