摘要
给出了用差频延时法测距的距离折射误差计算公式。在电离层内，连续波ｃｏｓ２πｆ１ｔ与ｃｏｓ２πｆ２ｔ以相速传播，但它们的差频信号ｃｓｏ［２π（ｆ１─ｆ２）］等效用频率以群速传播。
A formula of atmospheric refraction error of range measured by difference frequency delay method is presented. In ionosphere continuous waves cos(2πf1t)and cos(2πf2t) are propagated by phase velocity, but their difference frequency signal cor[2π(f1-f2)t] is propagated by equivalent frequency and group velocity.
出处
《电波科学学报》
EI
CSCD
1995年第3期25-27,共3页
Chinese Journal of Radio Science
关键词
大气折射误差
差频延时法
测距
电离层
Atmospheric refraction error, Range measurement by difference frequency delay method
