摘要
为解决传统群时延测量方法在工程实现中存在的频率分辨率与测量精度不可得兼的矛盾,提出了一种基于相位线性回归分析的群时延测量方法。在GPS授时接收机电缆传输特性测试中的实验结果表明,新测量方法与GPS授时接收机测得的信号传输时延之间具有好的对应关系。
To resolve the conflict of frequency resolution with delay accuracy in traditional group delay measurement,a method based on phase linear regression analysis is presented.The relationship between group delay and GPS signal delay is discussed based on experiments.The results show that there is only little difference between them,and the group delay measured by the novel method can be used to indicate the signal delay.
出处
《无线电工程》
2007年第8期28-31,46,共5页
Radio Engineering
关键词
群时延
时间同步
伪距
GPS授时
线性回归
group delay
time synchronization
pseudo-range
GPS time transfer
linear regression
