针对具有恒定俯仰角度载体的磁航向罗差标定和补偿问题，提出了一种用于磁罗差修正的偏差补偿算法(DCA)。
To calibrate and compensate the compass error of magnetic heading in a carrier with constant pitch Angle, the deviation compensation algorithm (DCA) for magnetic deviation compensation is put forward.
仿真结果表明用户和基准台之间距离增大和低卫星仰角都将使伪距残差增大，气象因素和高程对伪距残差也有影响。
The simulation results indicate that the pseudo-range remaining errors will be increased with the distance between base-station and GPS user and in the case of low satellite elevation.
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