基于GPRS的陀螺综合虚拟测试系统设计  

Design of Integrative Gyro Virtual Testing System Based on GPRS

作　　者：高桦[1] 钟昊[1] 

机构地区：[1]哈尔滨工业大学航天学院,黑龙江哈尔滨150001

出　　处：《计算机测量与控制》2011年第3期531-534,538,共5页Computer Measurement &Control

基　　金：哈尔滨工业大学重点专业建设项目2008-020

摘　　要：针对飞行器导航控制系统姿态信息的远程无线数据采集物理仿真及工程应用需求和数据采集系统应具有实时性能好、高精度及高可靠性等技术性能要求,设计和实现了陀螺远程综合测试系统;测试系统采用实验转台提供标准角速度信号,光纤陀螺作检测标准,待测陀螺为微机械陀螺;采用了巴特沃斯低通滤波器和滑动均值滤波器联合对采集的陀螺数据进行滤波处理;对标度因数、非线性度、最大角速度等部分常用技术参数的测试及计算方法做了分析,用辨识法对陀螺系统模型进行了建模,从而提高了数据采集的准确性;经实验验证,测试系统实现了远程无线数据采集的功能,被测陀螺的检测数据及陀螺模型能够反映实际效果,其准确性、实时性及供电系统的性能均满足了设计的预期要求。An integrative remote testing system of gyro was designed and implemented for physical simulation of remote wireless data acquisition for altitude information in aircraft navigation ＆ control system and engineering application with requirements such as fine real-- time performance, high accuracy, high reliability, etc. The testing system used rotary table as standard rate provider, FOG as testing criteria, and MEMS gyro as tested gyro. Butterworth low--pass filter combined with moving--average filter was also designed to smooth the output of two gyros. Testing and computing methods of main technical parameters such as scale factor, nonlinearity, maximum input angular rate, etc were analyzed and system modeling of gyro was carried out by identification method to enhance the accuracy of data acquisition. Experi- ment result shows that the testing system is able to acquire data remotely and tested parameters ~ gyro model can represent the actual states of tested gyro. Its accuracy γ- real--time performance as well as the power super system meet the design requirements.

关 键 词：GPRS 陀螺测试 虚拟仪器 模型辨识 

分 类 号：TP919[自动化与计算机技术] V241[航空宇航科学与技术—飞行器设计]