摘要
用级数近似Ｖｏｉｇｔ函数，导出了水平和垂直路径吸收系数随压强变化的解析式。分析用数值模拟差分吸收法测量大气压强时激光频移和带宽的影响，计算表明前者是测压误差的主要来源之一。
The analytic formulas for variations of horizontal and vertical path absorption coefficients with pressure are derived by a power series expansion. Effects of laser baridwidths,fretluenqy shifts in trough position with altitude, and temperature errors on atmospheric pressure measurement accuracy are simulated numerically. The numerical calculations show that laser frequency shift is one of the main error sources in the pressure measurement.
出处
《应用光学》
CAS
CSCD
1995年第1期53-57,共5页
Journal of Applied Optics
关键词
差分吸收
压强误差
大气压强
测量
激光雷达
differential absorption, absorption coefficient, error of pressure, bandwidth,frequency shift
