摘要
针对目前无法校验商品化GPS设备精度这一问题,该文介绍了用增量式编码器设计的一种双天线差分GPS校验装置,它是一种转台式结构,自带显示模块,能方便直观地观察到转台旋转的角度、圈数和速度信息,以此来与GPS接收机给出的数据进行对比,从而进行校验。该装置的校验精度即为编码器的分辨率且无累计误差,实验结果满足设计要求,并且为校验GPS设备精度提供了一种新方法。
There is a problem which we cannot verify the accuracy of GPS devices that have been purchased.So this article describes the incremental encoder design which is available as a dual-differential GPS Antenna Calibration Device.It is a rotary structure and comes with display module.It is convenient to observe the information of turntable rotation angle,number of turns and speed.We compare these data with the data which the GPS receiver given in order to carry out the verification.Calibration accuracy of the device is the same to the resolution of the encoder and no cumulative error.Finally the experimental results meet the requirements of this project.
出处
《电子质量》
2010年第12期52-54,共3页
Electronics Quality
关键词
GPS
增量式编码器
双天线差分
校验精度
GPS
incremental encoder
dual antenna differential
calibration accuracy
