摘要
针对ＤＩ２００２激光测距仪气象改正公式，结合目前我国在精密测距中实测的气象元素及地震监测特点，在讨论了光电测距基本气象改正的基础上，推导了ＤＩ２００２激光测距仪的精密气象改正公式。结果表明，与仪器说明书所给公式相比，导出的公式不仅提高了气象改正计算精度，而且适合于不同气象元素的测定，具有普遍的实用意义。最后较系统地分析了各气象元素测定误差对ＤＩ２００２测距结果的影响，定量计算了各气象元素在选定气象参考点的误差大小，并分析了其动态趋势。这对合理控制气象元素测定误差、有效减弱对测距结果的影响具有重要意义。
Pointing at the meteorological correction formula of the DI2002 laser range finder, connecting with the characters of the seismological monitoring and the meteorological element observation of precise distance measurement at present in China, and based on the discussion of the basic meteorological correction of the electromagnetic ranging, the precision meteorological correction formula of the DI2002 laser range finder is deduced. The result shows that, comparing with the formula in the technical manual of instrument, the presented formula not only gives the higher precision of meteorological correction calculating, but also suits to the observation of different meteorological elements, so it has general practical significance. At last, the effects of the every meteorological element observation error on the results of the DI2002 laser range finder are systematically analyzed. The error of the every meteorological element in choosing meteorological reference point is calculated quantitatively and its dynamic trend is analyzed, which have an important significance for controlling meteorological element observation error and effectively alleviating the influence on result of the distance measurement.
出处
《地壳形变与地震》
CSCD
1999年第2期70-75,共6页
Crustal Deformation and Earthquake
关键词
激光测距
气象改正
精密测量
误差分析
laser range, meteorological correction, precision measurement, error analysis
