magnetic heading

According to the complementary error characteristics between barometric altitude and GPS altitude, magnetic heading of DMC and GPS heading, the data fusion technology of integrated altitude sensors and integrated heading sensors are investigated respectively.

针对气压高度和GPS高度、DMC磁航向和GPS航向误差特性互补的特点，分别研究了组合高度和组合航向的数据融合技术。

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The introduction and the analysis of DCA theory indicate that DCA is very useful for compensation with both constant pitch and roll angles, and the DCA modified error of magnetic heading is restricted within ± 0.3 ° which can satisfy the heading calibration requirement of the plane.

通过DCA的原理分析和证明得出：该算法对具有恒定横滚角度和俯仰角度的磁航向罗差修正均有效，经过DCA补偿的磁航向角度误差在±0.3°以内，满足飞机的航向标定要求。

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Arc-tangent and exponent function, which used in the magnetic heading system and altitude meter, are analysed.

在一定精度要求下, 以两种常用函数(飞机磁航向和气压高度)为例算出插值区间.

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