Schwartz J A
Appl Opt. 1990 Sep 1;29(25):3590-6. doi: 10.1364/AO.29.003590.
A laser ranging error budget is detailed, and a specific error budget is derived for the TOPEX/POSEIDON satellite. A ranging uncertainty of 0.76 cm is predicted for TOPEX/POSEIDON at 20 degrees elevation using the presently designed laser retroreflector array and only modest improvements in present system operations. Atmospheric refraction and satellite attitude effects cause the predicted range error to vary with satellite elevation angle from 0.71 cm at zenith to 0.76 cm at 20 degrees elevation. This a priori error budget compares well with the ~1.2-cm rms a posteriori polynomial orbital fit using existing data taken for an extant satellite of similar size and orbit.
详细说明了激光测距误差预算，并为TOPEX/POSEIDON卫星推导了特定的误差预算。使用目前设计的激光后向反射器阵列，并仅对当前系统操作进行适度改进，预计TOPEX/POSEIDON在仰角20度时的测距不确定度为0.76厘米。大气折射和卫星姿态效应导致预测的距离误差随卫星仰角而变化，从天顶处的0.71厘米到仰角20度时的0.76厘米。这个先验误差预算与使用为类似大小和轨道的现有卫星获取的现有数据进行的约1.2厘米均方根后验多项式轨道拟合相当。
