摘要
结合三台Trimble4000se型单频GPS接收机检测实例,提出了GPS接收机内噪声水平分布统计的评价方法,以及在超短基线场内GPS接收机内噪声水平的检测方法——多时段旋转检测台法、实例测试,按本论文方法得到的被测试GPS接收机内噪声水平标准差为0．38mm。由测试实例得到如下结论:GPS接收机内噪声水平评价方法以及检测方法更加合理、可信;在超短基线场内多时段测得的同一基线长度互差应小于2mm;GPS接收机系统软件对内噪声水平有着非常重要的影响。
Combined with test of three Trimble4000se GPS receivers, this paper puts forward a method of evaluation on interior noise level using Chorology and Statistics and a new testing method by revolving the horizontal table-board between multi-sessions on the field of Mini-baseline. According to the method of this paper, the standard deviation of interior noise level of the tested GPS receivers is 0.38mm. Through the case, we can draw the following conclusion： First, the method of appraisal and testing of this paper is more rational and credible Second, the difference of same baseline between two sessions should less than 2mm. Third, the system software installed in GPS receiver has a very important influence on interior noise level of GPS receiver.
出处
《北京测绘》
2007年第1期14-18,共5页
Beijing Surveying and Mapping
关键词
GPS接收机
内噪声水平
评价方法
多时段旋转检测台法
GPS receiver
interior noise level
method of appraisal
testing method by revolving horizontal table-board between multi-sessions
