气压测高误差分析及修正

利用气压测定高度在航空、测绘、军事等多个领域得到广泛的应用,提高气压测高精度可以扩展其应用范围。结合气压测高的物理原理和国际标准大气(ISA)模型,分析了气压测高的原理性误差、环境误差和传感器测量误差产生的主要原因,提出了改进气压高度模型、减少环境影响、数字滤波等误差修正方法,并运用实际的气象观测数据,验证了修正方法的可行性和有效性。

Error analysis and correction for the atmospheric pressure measurement of altitude

With the wide range of applications of the atmospheric pressure measurement of altitude in many fields such as aviation,mapping and military field,the improvement of measurement precision can expand its range of applications.Based on the physical principle of atmospheric pressure measurement of altitude and the international standard atmosphere（ISA） model,the paper analyzes the main causes of principle error,environmental error and sensor measurement error in the atmospheric pressure measurement of altitude,propose the model of improving pressure altitude and the error correction methods of reducing environment impacts and digital filtering,and verify the feasibility and effectiveness of the correction methods based on the actual meteorological data.